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Feedback Control patents

      

This page is updated frequently with new Feedback Control-related patent applications.




 Analog-digital converting device and method, and image sensor including the same patent thumbnailAnalog-digital converting device and method, and image sensor including the same
An analog-digital converting device includes a comparison block generating at least one first comparison signal by comparing pixel signals with each other, and for generating second comparison signals by comparing each of the plurality of pixel signals with a ramp signal through a single ramping operation; a feedback control unit determining a data conversion sequence according to the at least one first comparison signal received from the comparison block, and outputting a control signal according to the determined data conversion sequence; a selection block selecting two of the plurality of the pixel signals or at least one of the plurality of the pixel signals and the ramp signal to be applied to the comparison block according to the control signal received from the feedback control unit; and a data conversion unit performing a data conversion on the plurality of pixel signals based on the second comparison signal.. .
Sk Hynix Inc.


 Optical transmitter patent thumbnailOptical transmitter
An optical transmitter includes an optical modulator configured to modulate input light and output a light signal, a drive unit configured to output a modulation data signal to the optical modulator, and a bias controller configured to perform feedback control of bias voltage applied to the optical modulator. During a modulation off operation of the optical modulator, the bias controller switches a control target point from a first control target point to a second control target point and executes the feedback control..
Mitsubishi Electric Corporation


 Device, system, and  motion feedback controller patent thumbnailDevice, system, and motion feedback controller
A device, system, and method uses universal serial bus (usb) signals to determine motion data. The method performed by a feedback controller includes receiving an input command from an input controller, the input command corresponding to a command entered by a user, the input controller utilizing a usb connection with the feedback controller.
Wind River Systems, Inc.


 Closed feedback control for electrosurgical device patent thumbnailClosed feedback control for electrosurgical device
A robotic surgical system including a control circuit configured to: (i) generate an energy control signal to deliver an electrosurgical energy signal to a first electrode and a second electrode, (ii) measure a current supplied and a voltage applied to the first and second electrodes, (iii) calculate impedance based on the measured current and voltage, (iv) compare the calculated impedance to a predetermined impedance level, (v) generate a subsequent energy control signal to deliver a subsequent electrosurgical energy signal to the first and second electrodes, when the calculated impedance is less than the predetermined impedance level, by adjusting at least one energy signal characteristic between the delivered electrosurgical energy signal and the subsequent electrosurgical energy signal based on the calculated impedance, and (vi) generate a drive control signal to activate a blade when the calculated impedance is greater than or equal to the predetermined impedance level.. .
Ethicon Llc


 Electrical surgical instrument with optimal tissue compression patent thumbnailElectrical surgical instrument with optimal tissue compression
A surgical device that comprises a tissue compression device that applies a compression force to tissue, a tissue-compression-measurement device having a mechanically-biased switching element disposed in line with the tissue compression device, wherein the tissue-compression-measurement device indicates when an amount of the compression force applied to the tissue reaches a pre-determined optimal compression force, and a feedback controller electrically connected to the tissue-compression-measurement device and receiving the indication from the tissue-compression-measurement device. A staple firing procedure is permitted to be carried out on the compressed tissue only when the feedback controller receives the indication that the pre-determined optimal compression force has been reached..
Ethicon Llc


 User equipment, feedback control method, and retransmission control method patent thumbnailUser equipment, feedback control method, and retransmission control method
User equipment to be used as receiving user equipment in a mobile communication system supporting d2d communication, the user equipment includes a feedback unit that receives a d2d signal from transmitting user equipment, and that transmits, to the transmitting user equipment, a feedback signal with respect to the d2d signal by using a predetermined resource; and a receiver that receives a retransmission d2d signal transmitted from the transmitting user equipment based on the feedback signal.. .
Ntt Docomo, Inc.


 Method and  controlling running of service patent thumbnailMethod and controlling running of service
A method and an apparatus for controlling running of a service are described. The method includes: acquiring service running information of a service on a client, the service running information including a service running parameter and a service running status, and the service running status including a running state or a non-running state; determining, when the service running status of the service is the running state, a service control mode of the service according to the service running parameter and a preset service control mode list; and performing feedback control on the service according to the service control mode of the service..
Tencent Technology (shenzhen) Company Limited


 Semiconductor devices having voltage generators using weighted combination of feedback voltages patent thumbnailSemiconductor devices having voltage generators using weighted combination of feedback voltages
A voltage generator which generates an internal voltage based on a varying voltage derived from the internal voltage includes a feedback control circuit configured to variably transmit the varying voltage responsive to a control signal to generate a feedback voltage. A voltage generation circuit is configured to generate the internal voltage based on the feedback voltage..
Samsung Electronics Co., Ltd.


 Flow rate control device patent thumbnailFlow rate control device
An operator is able to easily perform down-tuning while still achieving superior responsiveness and, in some cases, obtain an equivalent responsiveness as that obtained from the flow rate control device currently being used. In a flow rate control device that performs feedback control of a fluid control valve such that a measured flow rate closely approximates a target flow rate, there are provided a response lag input section that inputs a response lag set value, which is a value showing a response lag that an operator wishes to set, and a response lag generating section that generates response lags used in the feedback control in accordance with the response lag set values..
Horiba Stec, Co., Ltd.


 Sheet folding device, image forming system incorporating the sheet folding device, and sheet folding method using the sheet folding device and the image forming system patent thumbnailSheet folding device, image forming system incorporating the sheet folding device, and sheet folding method using the sheet folding device and the image forming system
A sheet folding device, which is included in an image forming system and uses a sheet folding method, includes first and second drive motors, a first sheet conveyor driven by the first drive motor and configured to receive and convey a sheet toward a downstream side of a sheet conveying direction, a second sheet conveyor driven by the second drive motor and configured to receive the sheet conveyed from the first sheet conveyor and to convey the sheet to the downstream side of the sheet conveying direction, and a controller configured to fold the sheet to a predetermined folding length set according to an amount of conveyance of the sheet by the second sheet conveyor while the sheet is being held between the first and second sheet conveyors, and to perform a feedback control with an integral gain to the second drive motor.. .
Ricoh Company, Ltd.


Unvented, back-pressure-controlled, laminar-annular-velocity-distribution, continuous centrifugal separator apparatus and method

A continuous centrifugal separator (ccs) system provides a laminar, annular, velocity distribution (lavd) throughout, using axially staged and radially staged distribution of incoming flows. Diffuser plates help establish the lavd at comparatively low (stably laminar) reynolds numbers in axial flow through a trapezoidal (trapezoid of rotation) rotor shell.
Thought Preserve, Llc

Manipulation of microfluidic droplets

The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.. .
Raindance Technologies, Inc.

Interaction between user-interface and master controller

A system to control the interaction between a user-interface of a teleoperated surgical system and an input device of the teleoperated surgical system, the system comprising a first master controller communicatively coupled to the teleoperated surgical system, a feedback control communicatively coupled to the first master controller, and a display device communicatively coupled to the teleoperated surgical system and configured to display the user interface. The feedback control is configured to restrict the movement of the first master controller based on a state of the user interface changing from a previous state..
Intuitive Surgical Operations, Inc.

Dimmer with photo sensor and high/low clamping

Provided is a circuit for controlling a level of brightness of a light electrically coupled to a dimming circuit including control leads configured to provide a dimming control voltage to the dimmable driver, the dimming control voltage having a permissible voltage range. The circuit includes a photo sensor for detecting an ambient light level in the vicinity of the light and a clamp controller for selectively reducing the dimming control voltage to a clamped voltage range less than the permissible voltage range.
General Electric Company

Secured sensor interface

Examples are disclosed that relate to the securing of a distributed sensor system. One example provides a security component configured to be communicatively coupled between a trusted element and a distributed sensor system.

Mechatronic assembly controlled by a torque and direction signal separate from the power signal

A mechatronic assembly drives a member intended to be linked to a dc electrical power source and to an ecu control unit. The ecu includes a computer for executing a feedback control algorithm delivering an item of direction and torque information.
Mmt Sa

Multifunctional wall socket

A multifunctional wall socket related to electrical conduction connecting device is provided. In one embodiment, the socket comprises a socket cover with a conventional power connector, and a usb port arranged on the socket cover.
Winon Holding Company Limited

Secured sensor interface

Examples are disclosed that relate to the securing of a distributed sensor system. One example provides a security component configured to be communicatively coupled between a trusted element and a distributed sensor system.

Robot controlling method, robot apparatus, program, recording medium, and manufacturing assembly component

feedback control is carried out on respective servomotors so that detection angles detected by respective input-side encoders become target angles to be obtained when a leading end of a robot has moved to a positioning completion position of a first motion. Subsequently, the position of the leading end of the robot is obtained on the basis of the detection angles detected by the respective output-side encoders.
Canon Kabushiki Kaisha

Tissue treatment tissue perfusion using feedback control

A system, ablation probe, and method is provided for treating tissue, e.g., tissue having tumors. The treatment system is configured to automatically deliver infusaid to tissue when needed and comprises an ablation probe having an ablative element and at least one perfusion exit port.
Boston Scientific Scimed, Inc.

Motor apparatus and motor control method

A motor apparatus and a motor control method are provided. The method includes the following steps.
Kinpo Electronics, Inc.

Managing emission produced by a combustion device

Described embodiments include a system, method, and apparatus. The system includes a sensor device configured to measure an unburned fuel component in an exhaust stream from a gas-fueled combustion device.
Elwha Llc

Determining an automatic bonding sequence for optical bonding

An automated bonding sequence system and method for customizing a bonding sequence is provided. The method includes the steps of detecting that a first substrate is in close proximity with the a second substrate, during an optical bonding operation, wherein at least the first substrate includes an amount of adhesive for optically bonding to the second substrate, stopping an automated process of optically bonding of the optical bonding operation, in response to the detecting, recording operator feedback control signals, the operator feedback control signals being received from a controller being operated by an operator to contact the first substrate and the second substrate, analyzing the operator feedback control signals to determine a bonding sequence for automatically optically bonding the first substrate and the second substrate, and resuming, by the processor, the automated process of the optical bonding operation..
Precision Valve & Automation, Inc.

Haptic feedback devices for surgical robot

A control system for a surgical robot is disclosed. The control system includes a controller, a sensor, a feedback device, a first socket, and a stand-alone input device.
Ethicon Llc

Comparator with correlated double sampling scheme, cmos image sensor including the same, and operating method thereof

A comparison device includes; a comparison block suitable for comparing a pixel signal with a reference voltage including a ramp-up signal and a ramp-down signal; a correlated double sampling (cds) block suitable for performing a correlated double sampling operation on the pixel signal; a first switch suitable for selectively inputting the ramp-up signal as the reference voltage based on a first switch control signal; a second switch suitable for selectively inputting the ramp-down signal as the reference voltage based on a second switch control signal; and a feedback control unit suitable for generating the first and second switch control signals based on a result of the comparison during an initialization operation.. .

Storage device

A storage device includes a potential generator; and a compartment for determining a storage space formed around a discharging electrode of the potential generator. The potential generator includes a transformer that is composed of a primary coil and a secondary coil; a feedback control circuit that feeds back one terminal of the secondary coil to one terminal of the primary coil to adjust a voltage of the secondary coil; an output control portion that is provided on the other terminal of the secondary coil to impart a predetermined low frequency vibration to an output of the secondary coil which causes the discharging electrode physically vibrates; and the discharging electrode that is formed of a conductive material and provided on the other terminal of the secondary coil via the output control portion.

Antenna device

A stray capacitance is generated between an antenna element and a ground electrode. A capacitance detection circuit detects the stray capacitance.
Murata Manufacturing Co., Ltd.

Dc/dc converter

In this dc/dc converter, a first switching circuit is connected between a first winding of a transformer and a dc power supply, and a second switching circuit is connected between a second winding and a battery. A control circuit includes a first circuit for performing feedback control so as to reduce a difference between a detected value and a command value of charge current, and a second circuit for correcting one of control input and output of the first circuit on the basis of the detected value and the command value.
Mitsubishi Electric Corporation

High voltage dc power supply for high power radio frequency amplifiers

The present invention provides a high voltage regulated dc power supply with full range 24 pulse input for ripple free output for high power rf amplifier, comprising: full range 24 pulse 3 phase 11 kv input system configured to provide uncontrolled low voltage dc bus, low input harmonics and high input power factor; a plurality of dc-dc power modules having their output connected in a series and coupled to the said dc bus voltage; each power module comprising a dc source, an inverter bridge igbts operating at predefined duty cycle and staggered to reduce the output ripple and output stored energy; and a combination of feed forward and feedback control circuit adapted to regulate the variations in the input line voltage and the variation in output at various load current to finally obtain ripple free high voltage output.. .
The Secretary, Department Of Atomic Energy

Methods and devices for ac current sources, precision current transducers and detectors

Precision ac voltage, current, phase, power and energy measurements and calibrations with current ranges from 1 ua to 20 ka and voltage ranges from 1v to 1000 kv are now performed with accuracies of better than one part per million. Continued demand for improved accuracy has led the inventors to address improvements to dual stage and multi-stage current transducers that may form the basis of the measuring process within many of the measurement instruments providing the precision ac measurements and calibrations.
Guildline Instruments Limited

Laser cladding tool head and machined surface sensing method thereof

A laser cladding tool head and a machined surface sensing method thereof are provided for a computer numerical control (cnc) machining center. The laser cladding tool head has a temperature sensing module and a camera sensing module, which can sense the temperature, lightness, and profile of a molten pool, and then provide them to a computer numerical control unit for a feedback control, so as to increase the processing effect and quality of a work-piece..
Tongtai Machine & Tool Co., Ltd.

Comparator with correlated double sampling scheme and operating method thereof

A comparator includes: a comparison block suitable for comparing a pixel signal and a plurality of ramp signals; a correlated double sampling (cds) block operatively coupled among a first input terminal receiving a first ramp signal used for first and third steps, a third input terminal receiving the pixel signal, and a negative input terminal of the comparison block, and suitable for performing cds; a switch coupled between a second input terminal receiving a second ramp signal used for a second step and a positive input terminal of the comparison block; a capacitor coupled between a ground terminal and the positive input terminal of the comparison block; an amplification block suitable for buffering a comparison signal outputted from the comparison block; and a feedback control unit suitable for generating a control signal for controlling the switch based on the buffered comparison signal.. .

Numerical controller

A numerical controller, which is capable of controlling an output value without causing delay or the like in feedback control, includes an instruction program analysis unit configured to analyze a program instruction and generate instruction data instructing movement of the axis, and a speed computation unit configured to start speed computation processing to compute a feeding speed of the axis by the instruction data or an override for the feeding speed by feedback control such that the spindle load value becomes constant. The speed computation unit is configured to update a feature amount intended for elimination of deviation between a desired value and a feedback value in the feedback control when another override that is different than the override that has been computed is output.

Coupled memristor devices to enable feedback control and sensing of micro/nanoelectromechanical actuator and sencors

A mems apparatus with dynamic displacement control includes a mems parallel plate capacitor integrated with one or more memristors in a series configuration wherein a displacement is observable as a function of memristance, such that an upper electrode position is capable of being interpreted in a form of a resistance rather than a capacitance. The current is limited by said mems parallel plate capacitor restricting a change in the resistance of the memristor(s).

Sexual stimulating system and method with feedback control

A sexual stimulating system with feedback control includes a physiological sensor, a sexual stimulator, and a processing module. The physiological sensor measures a physiological response of a user under sexual stimulation, and generates a sensor signal according to a result of the measurement of the physiological response.

Driving system and driving method, and exposure apparatus and exposure method

A synthetic controlled variable is obtained by obtaining a synthetic quantity using measurement results of a first and a second measuring instruments and corresponding gains (or transfer function) and synthesizing the synthetic quantity and one of the measurement results of the first and the second measuring instruments, respectively, via a high pass filter and a low pass filter. A feedback control system is structured that obtains a control input using a synthetic controlled variable and a desired value, and gives a plant the control input.
Nikon Corporation

System and consistent speed regulation in a variable frequency drive

A system and method for speed regulation of a vfd circuit via an anti-windup control scheme that provides consistent speed response with no overshoot is disclosed. A control system for operating the vfd circuit includes a feedback controller programmed to receive a speed of a motor operating responsive to an initial torque command and process the speed of the motor to generate a feedback controller output.
Eaton Corporation

Wide-frequency-band large displacement angle shaker

Provided is a broadband and large displacement angular vibrator, comprising an outer housing, a vibration table, a main spindle, a moving coil assembly, a magnetic circuit assembly, a holding brake assembly, a motor and closed loop control assembly thereof, an electric viscoelastic feedback control assembly, an air bearing, and an angular displacement sensor; the moving coil comprises a moving coil substrate and a coil; the moving coil substrate is fixed to the main spindle; the magnetic circuit assembly comprises a magnetic ring, a central magnetic pole, and magnets; the magnetic ring, central magnetic pole, magnets, and air gap form a closed magnetic circuit; the central magnetic pole is located inside the magnetic ring, the magnets are located between the magnetic ring and the central magnetic pole, and the magnets are attached to the central magnetic pole; the outer housing has the holding brake assembly; the holding brake assembly comprises a brake lining, an oil distribution sleeve, and an oil reservoir having a piston; the brake lining and the oil distribution sleeve enclose a hydraulic oil chamber; when the hydraulic oil is pressed into the hydraulic oil chamber from the oil reservoir, the magnetic circuit assembly brakes; when the hydraulic oil flows back to the oil reservoir, the magnetic circuit assembly rotates with the motor rotor. The present angular shaker has the advantage of being able to switch between intermediate-frequency and low-frequency, and has small output waveform distortion..
Zhejiang University

Grid independent operation control unit, power conditioner, and grid independent operation control method

A grid independent operation control unit includes a load current estimator to estimate a load current supplied to stand-alone power system in accordance with an output current of the inverter and an output voltage, and a feedback controller configured to pwm control the inverter at a duty ratio feedback calculated to cause the inverter to output an output voltage command value in accordance with the output voltage and the load current. The feedback controller is configured to pwm control the inverter at a duty ratio feedback calculated for output of a normalized output voltage command value obtained by normalizing the output voltage command value with the dc bus voltage in accordance with normalized output voltage obtained by normalizing the output voltage with the dc bus voltage and normalized load current obtained by normalizing the load current with the dc bus voltage..
Tabuchi Electric Co., Ltd.

Method of evaluating aligned patterns in directed self-assembly and using in feedback control scheme

Embodiments of methods and systems for inspecting a pattern are described. The method may include providing a substrate with a pattern formed thereupon, the pattern comprising aligned features.
Tokyo Electron Limited

Nanofiber yarns, thread, rope, cables, fabric, articles and methods of making the same

There is disclosed a material comprising an assembly of at least one spun yarn, comprising: synthetic inorganic fibers, such as carbon, metal, oxides, carbides or alloys or combinations thereof, wherein a majority of the fibers: (a) are longer than 300 μm, (b) have a diameter ranging from 0.25 nm and 700 nm, and (c) are substantially crystalline, wherein the yarn has substantial flexibility and uniformity in diameter. A method of making the material is also disclosed.
Multipure International

Vehicle control apparatus and vehicle control method

A vehicle control apparatus includes an electronic control unit. The electronic control unit is configured to perform feedback control of a motor such that a torque is output for stopping a crankshaft at a target angle.
Toyota Jidosha Kabushiki Kaisha

Injection apparatus and molding machine

A flow rate control valve configuring a meter-out circuit of an injection cylinder is an overlap type where a first port starts to be opened by a spool passing through an overlapping range. The control device holds a characteristic table linking a command value of a control command to the flow rate control valve and a velocity of a plunger including also the movement of the plunger which occurs due to a gap flow even if the spool is located in the overlapping range.
Toshiba Kikai Kabushiki Kaisha

A controlled climate bed for thermoregulatory modulation of a sleeper

A climate-controlled bed capable of adapting to the needs of a sleeper via a closed loop feedback control system is provided. The bed includes a thermoelectric energy source, a sensor configured to monitor a physiological temperature of a sleeper, and a control system that regulates a temperature of the bed via the thermoelectric energy source.
Board Of Regents,the University Of Texas System

Systems and methods for mitigation of oscillation in a closed-loop system

In accordance with embodiments of the present disclosure, a system may include a feedback controller and logic. The feedback controller may be configured to, based on a setpoint value and a measured process value calculate an error between the setpoint value and the measured process value and generate a driving signal based on the error.
Dell Products L.p.

Switching control circuit and control method

A switching control circuit for controlling a multi-channel switching circuit having switching circuits, input terminals coupled to input voltage signals, and an output terminal for providing an output voltage signal, can include: a logic control circuit configured to receive an external operation signal and a first single pulse signal, and to generate an enable signal, a trigger signal, and feedback control signals; a reference voltage regulation circuit configured to receive the enable signal, the trigger signal, and a maximum one of the input voltage signals, and to generate a reference voltage signal; and feedback circuits corresponding to the switching circuits, where the plurality of feedback circuits are configured to receive the feedback control signals, a minimum one of two input voltage signals that are participating in the switching operation, the reference voltage signal, and the output voltage signal, and to generate switching control signals for controlling the switching circuits.. .
Silergy Semiconductor Technology (hangzhou) Ltd

Substrate cleaning apparatus and substrate cleaning method

A substrate cleaning apparatus performs scrub cleaning of a surface of a substrate with an elongated cylindrical roll cleaning member. The substrate cleaning apparatus includes a roll holder for supporting the cleaning member and rotate the roll cleaning member, a vertical movement mechanism for vertically moving the roll holder so that the roll cleaning member applies a roll load to the substrate at the time of cleaning the substrate by actuation of an actuator having a regulating device, a load cell for measuring the roll load, and a controller for performing feedback control of the roll load through the regulating device based on the measured value of the load cell.
Ebara Corporation

Controller of air-conditioning controlling air-conditioning system

A controller of an air-conditioning system includes a feedback control unit configured to generate a state quantity command from a control parameter and a difference between a target value of a room temperature and a measured room temperature and control the room temperature to the target value on the basis of the state quantity command, a control target heat characteristic model calculation unit configured to calculate a parameter of a model regarding a heat characteristic of a control target from at least a state quantity regarding an amount of heat supplied to the control target or the state quantity command, and the measured room temperature during normal operation, and a control parameter determination unit configured to determine the control parameter by using the parameter and a formula derived from the model regarding the heat characteristic of the control target.. .
Mitsubishi Electric Corporation

Steering control apparatus

A steering control apparatus includes a steering angle feedback processing unit and an operation signal generation processing unit that operate a reaction force actuator to adjust a steering angle to a target steering angle that is a target value for the steering angle based on feedback control, an ideal-axial-force calculation unit that calculates an ideal axial force, a road-surface-axial-force calculation unit that calculates a road surface axial force, an axial-force allocation calculation unit that calculates a base reaction force in which the ideal axial force and the road surface axial force are allocated in a predetermined ratio, and a target steering angle calculation processing unit that sets a target steering angle based on the base reaction force. The steering angle feedback processing unit feeds back the target steering angle in which road surface information is incorporated through the road surface axial force, so that the steering angle is controlled..
Jtekt Corporation

Respiratory system for inducing therapeutic hypothermia

The present invention provides a method and apparatus for controlling a patient's body temperature and in particular for inducing therapeutic hypothermia. Various embodiments of the system are described.
Qool Therapeutics, Inc.

Switching control circuit and control method

A switching control circuit for controlling a multi-channel switching circuit can include: a logic control circuit that receives an external operation signal, and generates an enable signal, a trigger signal, and an order signal; a reference voltage regulation circuit that receives the enable signal, the trigger signal, the order signal, and a plurality of input voltage signals, and generates an adjustable reference voltage signal, where the reference voltage regulation circuit is also configured to select one of the plurality of input voltage signals based on the order signal; a feedback control circuit that receives the reference voltage signal, the plurality of input voltage signals, and the output voltage signal, and generates a feedback control signal; and a channel selection circuit that receives the order signal and the feedback control signal, and generates switching control signals to control switching operations of the multi-channel switching circuit.. .
Silergy Semiconductor Technology (hangzhou) Ltd

Switched mode power supply compensation loop

A controller, and related method, configured to generate a duty cycle control signal for controlling an output voltage of a switched mode power supply as a function of a reference signal. In one embodiment, the controller is configured to sample a signal indicative of the output voltage to generate a first sampled signal, filter out a ripple component of the first sampled signal to generate a filtered signal, and generate a feedback control signal based on the filtered signal.
Telefonaktiebolaget Lm Ericsson (publ)

Semiconductor device, display device, and electronic device

A semiconductor device in which variations are controlled is provided. The semiconductor device has a function of converting a digital signal into an analog signal, and includes a digital-analog converter circuit, an amplifier circuit, first to fourth switches, a first output terminal, a second output terminal, and a power source.
Semiconductor Energy Laboratory Co., Ltd.

Motor control apparatus, motor control method, program, and recording medium

The present invention implements a model-tracking motor control apparatus for stabilizing behavior of a controlled object. The control apparatus (1) includes: a feedback control part (20), generating a driving torque instruction value used to enable the servo motor (2) to perform driving based on a detection value of an encoder (4) that performs detection on a rotational state of a servo motor (2); and a feedforward control part (10), generating a model torque instruction value, and outputting the model torque instruction value to the feedback control part (20), where the feedforward control part (10) has a model torque limiter (104) that limits the model torque instruction value within a first limit range..
Omron Corporation

Vehicle and storage lng systems

Lng, for use as a motor vehicle fuel, is stored in a manner that does not require massive tanks, eliminates evaporative loss and reduces refrigeration energy consumption. A stirling cryocooler extends through a wall of a highly insulated, relatively low pressure container to its cold end located in the vapor phase above the liquid surface.
Global Cooling, Inc.

Control device and control internal combustion engine

A control device includes a feedback controller that determines an operation amount of an actuator by feedback control such that an actual value of a state quantity becomes closer to a target value, and a reference governor that modifies the target value such that an amount of change in the state quantity per unit time is equal to or less than an upper limit value β. The reference governor calculates a modified target value by adding one of 2ζβ/ωn and β/{(t2/t1)t2/(t1−t2)−(t2/t1)t1/(t1−t2)} to a current value of the state quantity (ζ, ωn: an attenuation coefficient, a natural angular frequency of a model formula in a case where a dynamic characteristic of a closed-loop system is modeled as a dead time plus second-order vibration system, t1, t2 =−ωn−1(−ζ±√{square root over ((ζ2−1))}−1), and determines the smaller one of the modified target value and an original target value as a final target value of the state quantity..
Toyota Jidosha Kabushiki Kaisha

Steering control system

The microcomputer calculates a first assist component based on a vehicle speed value and a steering torque, calculates a rotation angle command value based on at least the vehicle speed value and a first assist component, and calculates a second assist component by adjusting a rotation angle to the rotation angle command value through feedback control. The microcomputer sets a limited state 1 where the second assist component is disabled when a vehicle is stationary.
Jtekt Corporation

Upright walker having a user safety system employing haptic feedback

An upright wheeled walker with bilateral stabilizing wheel suspensions, and an automatic braking system integrated with obstacle avoidance systems, terrain sensors and user feedback controls. The walker provides user upper body weight support in a wheeled walker with a user safety system including a plurality of sensor, processor and control elements and an automatic braking system for avoiding unseen obstacles and automatic speed limiting on inclines..
Protostar, Inc., A Delaware Corporation

Laryngeal mechanosensor stimulator

This invention is a device that provides feedback controlled pressure output that delivers a highly controlled and accurate air stimulus into the larynx for diagnostic use. The device is designed to be significantly more accurate, safer for the patient, and highly modular for easy future modifications compared to previously available commercial devices..
The University Of Toledo

Feedback control apparatus, electrically driven power steering apparatus

An object of the present invention is to realize a feedback control apparatus and an electrically driven power steering apparatus capable of safely continuing control operation even in the event of the occurrence of a soft error. A controller 202 of the present invention determines a d-axis target voltage vd and a q-axis target voltage vq, which are control values for controlling an output value of the electrically driven power steering apparatus on the basis of a d-axis error signal δid and a q-axis error signal δiq, which are input values.
Hitachi Automotive Systems, Ltd.

Steering control system

A steering control system with which a steering angle accurately follows a steering angle command value is provided. An assist command value calculation circuit calculates a first assist component based on a value obtained by adding a basic assist controlled variable with a system stabilization controlled variable.
Jtekt Corporation

System, device, and moisture and texture detection and control in tortilla chip production

A production system for moisture and texture detection and control in tortilla and tortilla chip production includes a production line, including a cooker/grinder, a sheeter/cutter, an oven, an equalizer, a fryer, and a cooler/packaging machine; and a production control unit, including a processor, non-transitory memory, an input/output component, a moisture controller, a temperature controller, a belt speed controller, a masa moisture sensor, a chip moisture sensor, laser sensors for measuring surface texture of baked and fried chips, a laser controller, a texture classifier, a feedback controller. Also disclosed is a method for production control, including controlling moisture content, measuring masa moisture, controlling oven, measuring baked surfaces, measuring fried surfaces, classifying baked surfaces, classifying fried surfaces, optimizing oven temperature, optimizing oven belt speed, storing and characterizing historical records..

Steering control apparatus

A steered-angle command value calculation circuit calculates a steered-angle command value by adding a steering torque to a first assist component that is a sum of a basic assist control amount, a hysteresis control amount and a damping control amount. A steered-angle feedback control circuit calculates a second assist component by angle feedback control based on the steered-angle command value.
Jtekt Corporation

Vehicle control device and vehicle control method

A vehicle control device includes: a requested torque acquisition module that acquires a requested torque requested to a motor that drives a wheel; a control subject designation module that designates one of a wheel speed and a motor rotation speed as a control subject on the basis of the requested torque; and a control module that performs feedback control in a manner that the control subject designated by the control subject designation module becomes equal to a target value.. .
Fuji Jukogyo Kabushiki Kaisha

Devices and methods for optimized neuromodulation and their application

Disclosed are methods and systems for optimized deep or superficial deep-brain stimulation using multiple therapeutic modalities impacting one or multiple points in a neural circuit to produce long-term potentiation (ltp) or long-term depression (ltd). Also disclosed are methods for treatment of clinical conditions and obtaining physiological impacts.

High-voltage analog circuit pulser with feedback control

A sub-microsecond pulsed electric field generator is disclosed. The field generator includes a controller, which generates a power supply control signal and generates a pulse generator control signal, and a power supply, which receives the power supply control signal and generates one or more power voltages based on the received power supply control signal.
Pulse Biosciences, Inc.

Power supply system, apparatus, and control method

A power supply system includes a power supply, a converter, and a processor. The converter converts voltage of the electric power supplied from the power supply.
Honda Motor Co., Ltd.

Intelligent routing of electric power

A method and system for dynamically routing electric power in real time in accordance with parameters submitted by buyers and sellers of electric power using a feedback control scheme. A control node is arranged for receiving the parameters via a wide area network and to generate a route plan based on the parameters as well as current supply and demand in a network.
Grid Innovations, Llc

Extremum-seeking control system for a chilled water plant

An extremum-seeking control system for a chilled water plant includes a feedback controller and an extremum-seeking controller. The feedback controller is configured to operate equipment of the chilled water plant to achieve a condenser water temperature setpoint.
Johnson Controls Technology Company

Combustor with adjustable swirler and a combustion system

A combustor having an ion transport membrane therein and an adjustable swirler, which is mechanically connected at an inlet of a combustion zone of the combustor; a combustion system comprising the combustor, a feedback control system adapted to adjust swirler blades of the combustor based on a compositional variation of a fuel stream, and a plurality of feedback control systems to control operational variables within the combustor for an efficient oxy-combustion; and a process for combusting a fuel stream via the combustion system. Various embodiments of the combustor, the combustion system, and the process for combusting the fuel stream are disclosed..
King Fahd University Of Petroleum And Minerals

Ballast circuit

A ballast circuit suitable for driving an led or similar load, comprises a primary switch mode converter, means for measuring a modulation, such as a phase cut, as used for dimming light levels, on an input ac supply, a current regulator positioned in series with the load, and a feedback controller for controlling operation of the switch mode controller based upon measured modulation levels. The feedback controller is adapted to interrupt normal switching of the switch mode converter if modulation levels detected lead to the ballast working at a lower than desired efficiency (deep dimming), or if voltage levels across the current regulator are higher than desired.
Accuric Ltd

Method and estimated inductance and current feedback control of a grid-connected inverter with nonlinear inductor

An inverter output current passes from an inverter phase output, through a non-linear inverter side inductor, and into a line that connects through a grid side inductor to a grid phase. An inductance of the inverter side non-linear inductor is estimated, a current passing through the grid side inductor is estimated, and a current through the inverter side inductor is measured.

Rate matching technique for balancing segment cleaning and i/o workload

A rate matching technique may be configured to adjust a rate of cleaning of one or more selected segments of the storage array to accommodate a variable rate of incoming workload processed by a storage input/output (i/o) stack executing on one or more nodes of a cluster. An extent store layer of the storage i/o stack may clean a segment in accordance with segment cleaning which, illustratively, may be embodied as a segment cleaning process.
Netapp, Inc.

Hall electromotive force signal detection circuit and current sensor

A hall electromotive force signal detection circuit suppresses variations of spike-like error signals that become obstacles to high-precision detection of hall electromotive force signals. To this end, in the hall electromotive force signal detection circuit driving plural hall elements by spinning current techniques and using plural transconductance amplifiers, a reference signal vcom is supplied from a feedback network controller to a hall signal feedback network that performs a feedback control so that common voltages of hall electromotive force signals from the plural hall elements match with the reference signal vcom and to an output signal feedback network that feeds back a voltage obtained by dividing a difference between an output voltage and the reference signal vcom.
Asahi Kasei Microdevices Corporation

Zero ripple fan noise suppression

A fan noise suppression circuit may be coupled between a power source and a power input to at least one fan. The fan noise suppression circuit may include an adjustable current source coupled to the power source.
National Instruments Corporation

Skip fire transition control

A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire operation of an engine in order to help reduce undesirable nvh consequences and otherwise smooth the transitions. In general, both feed forward and feedback control are utilized in the determination of the firing fractions during transitions such that the resulting changes in the firing fraction better track cylinder air charge changing dynamics associated with the transition..
Tula Technology, Inc.

Control device for opening and closing bodies of vehicles

A control device for opening and closing bodies of vehicles comprises a driving device that drives an opening and closing body of a vehicle and a controlling unit that controls operation of the driving device. The controlling unit is configured so as to cause the opening and closing body to move while controlling the speed of the opening and closing body movement by executing speed feedback control and to set a plurality of control regions over the range of movement of the opening and closing body and change control properties for the speed feedback control in each of the control regions..
Aisin Seiki Kabushiki Kaisha

Exposure control an image capture device

Improved exposure control processes, devices, and systems are provided for wide angle lens imaging systems that suffer from image distortion. The exposure control uses a model of the wide angle lens distortion that estimates the weights that respective pixels of the image would have when producing an undistorted version of the image signal, and then scales pixel intensity values by the respective weights to produce weighted pixel values.
Karl Storz, Imaging, Inc.

Ringing suppression power converters

A method of controlling a power converter for converting a dc input voltage to a dc output voltage is presented the power converter comprises an inductor, one or more switching elements for energizing and de-energizing the inductor, a drive circuit for controlling switching operation of the one or more switching elements in accordance with a control signal, and a feedback circuit for generating the control signal on the basis of a first feedback quantity indicative of an actual output voltage of the power converter and in accordance with one or more circuit parameters of the feedback circuit, the method comprising: detecting an open loop condition of feedback control by the feedback circuit; and modifying at least one of the circuit parameters of the feedback circuit in such a manner that a time until the feedback control by the feedback circuit returns to the closed loop condition is reduced.. .
Dialog Semiconductor (uk) Limited

Feedback control device

To provide a feedback control device that achieves smooth continuous control at the time of switching of binary feedback controls. When, as a result of constant current feedback control being performed through a connection between a current control unit 12 and an i control unit 24, a detected measured voltage value of a control object 21 reaches a preset value that is maintained by constant voltage feedback control, a u1/u2 determination unit (switching determination unit) 27 controls changeover switches 22 and 23 to connect a voltage control unit 15 and the i control unit 24 and, in addition, connect the voltage control unit 15 to an adder 25 to which the i control unit 24 is connected, and performs switching to constant voltage feedback control..
Toyo System Co., Ltd.

Dense wavelength beam combining with variable feedback control

An external cavity laser apparatus includes a plurality of laser modules collectively including a plurality of beam emitters that collectively emit a plurality of emitted beams. Each laser module includes a base comprising a plurality of stepped platforms, one of the plurality of beam emitters being secured on each platform of the plurality of stepped platforms, and a plurality of module reflectors, one of the plurality of module reflectors being secured on each of the plurality of stepped platforms to receive radiation from a respective one of the plurality of beam emitters located on a same stepped platform.
Trumpf Laser Gmbh

System for mitigating induced alternating current (ac) on pipelines

An alternating current (ac) mitigation system reduces undesired ac current induced in a pipe section by the electromagnet field of a nearby electrical utility power line. An active feedback system processes samples of the undesired ac signal from a current sensor located at the pipe section.
American Innovations, Ltd., A Texas Limited Partnership

Store separation autopilot

A method and apparatus are presented for guiding a store, represented by a dynamic system having transitory nonlinear characteristics, between release from a platform and an activation of a mission autopilot along an optimal path. A nominal reference trajectory is determined that optimizes a desired performance index for the dynamic system using optimal control theory.
Government Of The United States, As Represented By The Secretary Of The Air Force

Magnetic noise rejection apparatus and magnetic field measurement apparatus

There is provided a magnetic noise rejection apparatus which includes: a plurality of cancellation coils arranged near a target object; a plurality of magnetic sensors disposed inside the respective cancellation coils; an adder circuit configured to take a sum of outputs of the plurality of magnetic sensors; and a feedback control circuit configured to supply the cancellation coils with such a common feedback drive current that the sum of the outputs of the magnetic sensors is equal to a sum of outputs of the magnetic sensors under a zero magnetic field.. .
Advantest Corporation

Internal combustion engine

The internal combustion engine comprises an exhaust purification catalyst able to store oxygen, and a downstream side air-fuel ratio sensor arranged at a downstream side of the exhaust purification catalyst in a direction of exhaust flow. The control system performs feedback control of an amount of fuel fed to a combustion chamber of the internal combustion engine so that an air-fuel ratio of exhaust gas flowing into the exhaust purification catalyst becomes a target air-fuel ratio and performs learning control to correct a parameter relating to the feedback control based on an air-fuel ratio of exhaust gas detected by the downstream side air-fuel ratio sensor.
Toyota Jidosha Kabushiki Kaisha

Internal combustion engine

An internal combustion engine comprises: an exhaust purification catalyst; a downstream side air-fuel ratio sensor which is arranged at a downstream side of the exhaust purification catalyst; and an air-fuel ratio control system which performs feedback control so that the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst becomes a target air-fuel ratio. The air-fuel ratio control system switches the target air-fuel ratio to a lean set air-fuel ratio when the air-fuel ratio detected by the downstream side air-fuel ratio sensor becomes a rich judged air-fuel ratio or less; changes the target air-fuel ratio to a slight lean set air-fuel ratio after switching the target air-fuel ratio to the lean set air-fuel ratio and before an estimated value of the oxygen storage amount of the exhaust purification catalyst becomes a switching reference storage amount or more; and switches the target air-fuel ratio to a rich air-fuel ratio when the estimated value of the oxygen storage amount of the exhaust purification catalyst becomes the switching reference storage amount or more..
Toyota Jidosha Kabushiki Kaisha

Active force/vibration feedback control a movable machine

A movable machine including a chassis, a tool coupled to the chassis, an operator control carried by the chassis and a controller. The controller is communicatively coupled to the operator control.
Cnh Industrial America Llc

Method for controlling electric power steering apparatus, electric power steering apparatus and vehicle equipped with the same

A method for controlling an electric power steering apparatus, the electric power steering apparatus and a vehicle equipped with the same. The method includes detecting an upper-side angle of a torsion bar; detecting a lower-side angle; setting an angle target value of an opposite side by using one of the upper-side angle or the lower-side angle; detecting an actual angle of the opposite side; and performing an angle follow-up feedback control based on a deviation between the angle target value and the actual angle..
Nsk Ltd.

Motor control unit

A motor control unit includes an h-bridge circuit, a current detection part and a control part. The current detection part includes current detection resistors provided at both sides of a dc motor.
Denso Corporation

Broadband geophone accelerometer

A closed loop broadband geophone which is made by using a high performance method to measure a mechanical vibration is disclosed. All coil portions of the two or more coil sets are located in at least 4 separate recesses of the bobbin.

Control system of internal combustion engine

An internal combustion engine comprises an exhaust purification catalyst, a downstream side air-fuel ratio sensor which is arranged at a downstream side of the exhaust purification catalyst, and an air flow meter which detects an amount of intake air. The control system of the internal combustion engine controls the exhaust air-fuel ratio to a target air-fuel ratio by feedback control, sets the target air-fuel ratio at a lean air-fuel ratio when the output air-fuel ratio of the downstream side air-fuel ratio sensor becomes a rich air-fuel ratio, and sets the target air-fuel ratio at a rich air-fuel ratio when the output air-fuel ratio of the downstream side air-fuel ratio sensor becomes a lean air-fuel ratio.
Toyota Jidosha Kabushiki Kaisha

Oil supply device for engine

A controller sets a target hydraulic pressure from a required hydraulic pressure of a hydraulically operated device according to an operating condition of an engine. The controller causes an oil control valve to perform feedback control of the discharge amount of an oil pump in such a manner that an actual hydraulic pressure detected by a hydraulic pressure sensor coincides with the target hydraulic pressure.
Mazda Motor Corporation

Radiofrequency and plasma device for vaginal laxity and remodeling

A device for vaginal remodeling includes a preferably disposable, sterilizable handpiece which is an elliptical or preferably cylindrical applicator, adapted to be inserted in vagina. An one electrode is positioned either on the outer surface of the handpiece or on the inner surface of the handpiece.
Bios S.r.l.

Feedback control circuit and method thereof

Disclosed are a feedback control circuit and a method thereof. The feedback control circuit includes a voltage comparator, a calibration voltage generator and processor.
Realtek Semiconductor Corp.

Closed loop feedback control to mitigate lithium plating in electrified vehicle battery

A vehicle having a traction battery with at least one cell includes a controller coupled to the traction battery and programmed to modify traction battery current in response to a difference between a lithium plating parameter target value and a lithium plating parameter actual value to reduce the difference. The lithium plating parameter or indicator may be based on a differential open circuit voltage of a battery cell, or a ratio of differential voltage of the at least one cell as a function of time to cell charging rate of the at least one cell..
Ford Global Technologies, Llc

Feedback control the operation of a centrifuge

A feedback control method accounts for noise emissions of a centrifuge for the operation of a centrifuge, in particular a separator or a decanting centrifuge, for the centrifugal processing of a product, in particular for clarifying a product and/or for separating a product into different liquid phases using the drum.. .
Gea Mechanical Equipment Gmbh

Optical receiver with multiple transimpedance amplifiers

A method and system for amplifying small optical currents in an optical receiver front end system may employ multiple transimpendance amplifiers (tias) and feedback control loops. For example, the front end system may include a main feedback control loop (having a main tia) and a replica feedback control loop (having a replica tia) that, collectively, generate an optimum input common mode level for a differential amplifier operating at high data rates (e.g., speeds up to tens of gigabits per second).
Fujitsu Limited

Adaptive feedback control voltage regulators

A voltage regulator includes a first feedback circuit, a second feedback circuit, and a feedback signal adaptive circuit. The first voltage feedback circuit includes an amplifier that is configured to generate a compensation signal according to a feedback signal from an output of the voltage regulator and a reference voltage, while the second voltage feedback circuit includes a comparator that is configured to generate a pwm signal to drive a switch circuit in which the comparator initiates the pwm pulse when the feedback voltage goes lower than the compensation signal and ends the pwm pulse when the sum of the feedback signal and a ramp signal exceeds the sum of the compensation signal and a threshold signal.
Semiconductor Components Industries, Llc

High speed adaptive-multi-loop mode imaging atomic force microscopy

A method for imaging a sample using a high speed dynamic mode atomic force microscope may include scanning a tip of a cantilever probe over a surface of the sample, regulating a vibration amplitude of the tip to remain constant at a set point value (aset), via a first signal generated in a first feedback controller, measuring a mean tapping deflection of the tip, regulating the mean tapping deflection via a second signal generated in a second feedback controller, tracking and measuring an adjustment to the measured mean tapping deflection during the regulating. The method may further include generating an image topography of the sample based on the first signal, the second signal, and the measured adjustment of the mean tapping deflection of the cantilever probe..
Rutgers, The State University Of New Jersey

Active pressure and flow regulation system

In processes and systems utilizing a compressor to fill a vessel with gas, for example, in the filling of the fuel tank of a vehicle that operates on compressed natural gas (cng), a number of advantages are realized by establishing independent control over the flow rate of gas discharged from the compressor, such as on the basis of the compressor discharge pressure, utilizing feedback from one or more gas pressure sensors. In representative embodiments, a detected or actual measured compressor discharge pressure can serve as a process variable, in a feedback control loop for regulating the output of the compressor..
Trillium Transportation Fuels, Llc

Power supply apparatus, image forming apparatus, and integrated circuit

The power supply apparatus is configured to detect the output voltage of a piezoelectric transformer and controls the frequency of a pulse signal to drive the piezoelectric transformer based on the detected output voltage and a preset target voltage so as to perform feedback control of the output voltage of the piezoelectric transformer, the gain when performing the feedback control is switched in accordance with the target voltage.. .
Canon Kabushiki Kaisha

Feedback control for hybrid regulator including a buck converter and a switched capacitor converter

The present disclosure includes a feedback system that can control hybrid regulator topologies that have multiple converters or regulators connected in series. The hybrid regulator can include at least two regulators: a switched inductor regulator and a switched-capacitor regulator.
Lion Semiconductor Inc.

Two-path symmetrical-output adjustable power supply

An example two-path symmetrical-output adjustable power supply is provided, including a switching power supply module, a positive adjustment module, a negative adjustment module and a first operational amplifier. The switching power supply module is coupled to a dc power supply and the first operational amplifier and configured to output a positive voltage and a negative voltage in common-ground and equal in absolute value according to a feedback control based on a reference voltage and the output voltage of the first operational amplifier.
Shenyang Neusoft Medical Systems Co., Ltd.

Method and monitoring particle laden pneumatic abrasive flow in an abrasive fluid jet cutting system

An abrasive jet cutting system may include a differential pressure measurement apparatus configured to measure a differential pressure between points in an abrasive supply system. The differential pressure may be used to determine one or more conditions of the jet and the abrasive delivery.
Omax Corporation

Micro-cutting systems for forming cuts in products

Micro-cutting machines for forming cuts in catheters, guidewires, and similar products, are disclosed, including a micro-cutting machine that can directly control the dimensions of the resultant beams being cut into products, and that can capture images of each cut for feedback control and accuracy verification.. .
Scientia Vascular, Llc

Aeroponics system with microfluidic die and sensors for feedback control

The present disclosure is directed to a greenhouse or single container for plant growth coupled to the internet of things and including a microfluidic die for water or nutrient distribution. The microfluidic die is controllable automatically or with instructions from a remote user, based on sensors included within a growth environment..
Stmicroelectronics, Inc.

Battery charging circuit with high capacity, control circuit and associated control method

A battery charging circuit has a first switching circuit and a second switching circuit which are coupled in parallel. A control circuit has a plurality of feedback control loops, a logic integrated circuit, a first logic circuit and a second logic circuit, wherein the plurality of feedback control loops provides a plurality of feedback control signals, the logic integrated circuit provides a logic integrated signal based on the plurality of feedback control signals, the frequency dividing circuit provides a first frequency dividing signal and a second frequency dividing signal based on the logic integrated signal, the first logic circuit controls the first switching circuit based on the first frequency dividing signal and a first duration signal, the second logic circuit controls the second switching circuit based on the second frequency dividing signal and a second duration signal..
Chengdu Monolithic Power Systems Co., Ltd.

Reference detector for correcting fluctuations in dose and energy of x-ray sources

Systems and methods presented herein provide corrections for fluctuations in dose or energy of radiation sources including x-ray radiation sources. The corrections can be applied to improve the quality of transmission radiography data or other radiation imagery or to facilitate feedback control of a radiation source to improve stability..
L-3 Communications Security & Detection Systems, Inc.

X-ray analyzing apparatus

The x-ray analyzing apparatus according to the present invention includes, in combination: a first correcting unit (13a, 13b) to output a first gain to cause a pulse height of a target peak which is estimated on the basis of a sum of counting rates obtained in preliminary measurement, to match a predetermined expected pulse height; and a second correcting unit (14a, 14b) to output, in real time through feedback control, a second gain to be added to the first gain in order to cause the pulse height of the target peak detected within a predetermined energy range, to match the expected pulse height, and further includes a feedback control stopping unit (16a, 16b) to appropriately determine presence/absence of an interfering line with respect to the target peak, and to set, when determining that the interfering line exists, the gain to a fixed value including only the first gain.. .
Rigaku Corporation

Control vehicle driving system

While a vehicle is traveling in a state where any one of gear positions of a mechanical stepped transmission unit is established, until an estimated input torque that is obtained from the equation of motion for an electrical differential unit changes, a hydraulic pressure of a non-engaged intended hydraulic friction engagement device is increased, and a pack end pressure is learned on the basis of the hydraulic pressure at that time. Therefore, irrespective of feedback control, or the like, over motor generators of the electrical differential unit, it is possible to appropriately learn the pack end pressure, so it is possible to appropriately execute hydraulic control over the hydraulic friction engagement devices, that is, engaging and releasing control, or the like, at the time of shifting, irrespective of individual differences of the portions, aging of friction materials, or the like..
Toyota Jidosha Kabushiki Kaisha

Electro-acoustic sensors

Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy to an electroacoustical transponder, which includes ultrasonic receiving elements to convert the acoustic energy into electrical power for the purposes of powering one or more sensors that are electrically coupled to the electroacoustical transponder. The electroacoustical transponder transmits data collected by the sensor(s) back to the electroacoustical transceiver wirelessly, such as through impedance modulation or electromagnetic waves.
Ultrapower Llc

Systems and methods for additive manufacturing and repair of metal components

Scanning laser epitaxy (sle) is a layer-by-layer additive manufacturing process that allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powders placed atop a base substrate. Sle can be used to repair single crystal (sx) turbine airfoils, for example, as well as the manufacture functionally graded turbine components.
Georgia Tech Research Corporation

System and feedback control in scanning projectors

A scanning projector and method is provided that generates a feedback signal from at least one photodetector. In the scanning projector, a scanning mirror is configured to reflect laser light into an image region and an over scanned region.
Microvision, Inc.

Power control module for an electronic converter, related integrated circuit, electronic converter and method

A power control module for an electronic converter is disclosed. The electronic converter includes a power stage comprising two input terminals for receiving a first power signal and two output terminals for providing a second power signal.
Stmicroelectronics S.r.l.

Quasi universal feed forward dc to dc converter and method

This invention proposes using a feed forward quasi universal converter for energy harvesters, and uses it to power iots (internet of things). A typical dc to dc converter uses voltage feedback control or current feedback control.
National Taiwan Normal University

Adaptive automatic computer room air conditioners (crac) master control method and system

Described is an adaptive automatic computer room air conditioner (crac) or computer room air handler (crah, crac and crah is referred interchangeably in this article) group control method. This method automatically controls each hvac unit's on/off status, return temperature set point, fan speed or cooling valve position to secure the data center thermal environment for server's secure running and minimize the cooling energy use.
Archimedes Controls Corp.

Air fuel ratio control for an internal combustion engine that can be operated with fuels at different properties

The air-fuel ratio feedback control is performed by using a first correction value which is determined depending on a difference between a detected air-fuel ratio (a/f) of an air-fuel mixture and a target a/f and a second correction value which is determined depending on the property of the fuel. Further, fuel property learning control is carried out to correct the first correction value and the second correction value so that an absolute value of the first correction value is not more than a threshold value, when the absolute value of the first correction value is larger than the threshold value after performing the charging with fuel.
Toyota Jidosha Kabushiki Kaisha

Explosion-proof circuit, charging circuit and charging/discharging protection circuit of battery

An explosion-proof circuit, a charging circuit and a charging/discharging protection circuit of a battery are disclosed. In the explosion-proof circuit and charging circuit of the battery, when a load is short-circuited, the voltage at the output end of a power electronic switch (q1) is close to the voltage of the negative electrode of the battery, and the voltage of the battery is divided by a control resistor (r9) and a feedback resistor (r15), so that a feedback control switch (q3) is switched on, thus enabling the power electronic switch (q1) to be in a cut-off state; the load current is cut off to protect the power electronic switch (q1) from damage; and meanwhile, the electric quantity of the battery is released in a relatively small safe current by a current limiting resistor (r7), the control resistor (r9) and the feedback resistor (r15), thereby avoiding the problem that the battery generates secondary hazards due to the fact that the electric quantity of the battery is stored in the battery and cannot be released.
Beijing Tocel Electronics Co., Ltd (cn)

Haptic feedback controller

A haptic feedback element controller for a mobile device and a method of controlling a haptic feedback element for a mobile device is described. The haptic feedback element includes a processor having a processor output, a first processor input, and a second processor input, a control state module having an output coupled to the second processor input and configured to determine at least one operating state parameter of at least one of a haptic feedback element and a haptic feedback element amplifier; wherein the processor is configured to alter the amplitude of one or more frequency components of an input signal received on the first processor input in dependence of the at least one operating state parameter and to output a processed signal to a haptic feedback element amplifier having an output for coupling to a haptic feedback element.
Nxp B.v.

Keyboard

A keyboard that can yield a favorable keying feeling to a user is disclosed. The keyboard includes multiple keys, a pressure sensor configured to sense a pressure used for pressing a key, a haptic device configured to generate haptic feedback that involves a micro vibration, and a feedback control unit configured to issue a signal used for driving the haptic device according to the pressure that the pressure sensor has sensed.
Lenovo (singapore) Pte. Ltd.

Remote controller for controlling apparatus by diverting feedback signal from native controller to the remote controller and methods for same

A remote controller can be provided on any apparatus that employs feedback control from a native controller to add functionality to the apparatus where the native controller is not capable of providing such functionality independently.. .
Imflux Inc.

Fuel supply system, marine propulsion device and outboard motor

A fuel supply system includes a sub fuel tank, a booster pump, a fuel pipe, a fuel pressure sensor and a controller. The sub fuel tank stores a fuel supplied thereto from a main fuel tank.
Yamaha Hatsudoki Kabushiki Kaisha

System for compensating for disturbance of motor for motor driven power steering

A system for compensating for disturbance of a motor for motor driven power steering is provided. The system for compensating for disturbance of a motor for motor driven power steering compensates for the disturbance based on a closed loop based input value prediction model unit, separately predicts an input value from a command by a closed loop based input value prediction model unit, and compensates for disturbance in accordance with a desired disturbance frequency band when there is a difference between the predicted input value and an input value error-compensated by a feedback controller..
Korea Advanced Institute Of Science And Technology

Pushcart

A pushcart includes a left wheel, a right wheel, a left wheel driver, a right wheel driver, a control unit, a left wheel rotary encoder, and a right wheel rotary encoder. The left wheel driver rotates the left wheel.
Murata Manufacturing Co., Ltd.

Remote controller for controlling apparatus by diverting feedback signal from native controller to the remote controller and methods for same

A remote controller can be provided on any apparatus that employs feedback control from a native controller to add functionality to the apparatus where the native controller is not capable of providing such functionality independently.. .
Imflux Inc.

Remote controller for controlling apparatus by diverting feedback signal from native controller to the remote controller and methods for same

A remote controller can be provided on any apparatus that employs feedback control from a native controller to add functionality to the apparatus where the native controller is not capable of providing such functionality independently.. .
Imflux Inc.

Method and monitoring particle laden pneumatic abrasive flow in an abrasive fluid jet cutting system

An abrasive jet cutting system may include a differential pressure measurement apparatus configured to measure a differential pressure between points in an abrasive supply system. The differential pressure may be used to determine one or more conditions of the jet and the abrasive delivery.
Omax Corporation

Method and system for controlling neural activity in the brain

A method and system for controlling neural activity in the brain, including performing a source localization procedure and a neurostimulation procedure, and using the former as a monitor to provide for feedback control of the latter.. .
Electrical Geodesics, Inc.

System, device, and oven temperature control in tortilla and tortilla chip production

A heat controlled oven system includes a plurality of oven levels, including an oven belt and gas burners; a gas flow network, including a gas supply line, a variable flow control valve, and on/off flow control valves; and a heat control unit, including a processor, a non-transitory memory, and input/output component, a heat modeler, a heat manager, a feedback controller, and a valve controller, such that the heat control unit is configured to calculate an estimated heat demand to adjust to a temperature set point, based on a heat model of the at least one oven level, and further calculates an optimized heat demand using a control loop feedback algorithm. Also disclosed is a method of heat calculation for an oven, including defining a heat model, calculating and optimizing the estimated heat demand, calculating and setting a variable valve position for the gas burners..

Voltage sensor abnormality diagnosis apparatus

A voltage sensor abnormality diagnosis apparatus is applied to a motor controller operating switching of inverter by a switching signal for complementary on and off and diagnoses abnormality of input voltage sensor. An input voltage estimated value calculation section calculates input voltage estimated value by multiplying voltage command amplitude deviation by conversion coefficient, the voltage command amplitude deviation being obtained by subtracting theoretical voltage command amplitude, which is amplitude of theoretical voltage command calculated by using a motor model expression, from a control voltage command amplitude, which is an amplitude of a control voltage command calculated by feedback control and has been corrected by the dead time correction amount.
Denso Corporation

Method and device for measuring physical properties of fluid

Provided are a method and device for improving a response speed in a measurement of viscosity of a fluid and obtaining a continuous smooth measurement graph. A viscometer includes a machine part that generates a shear rate in a sample, a machine drive, a shear rate changing means that outputs a target shear rate of the machine part, and a displacement detection sensor that measures displacement of the machine part, and performs feedback control to control a driving force of the machine drive so that an output value of the displacement detection sensor corresponds to the target shear rate and measures a viscosity of a sample, wherein a feedback gain is simply set for each measurement according to an optimum design or target shear rate..
A&d Company, Limited

Optimizing energy efficiency ratio feedback control for direct expansion air-conditioners and heat pumps

A system for maximizing the measured efficiency of an hvac&r system including two pressure sensors, two temperature sensors, a flow sensor, a power voltage sensor, a power current sensor, and a controller. Each pressure sensor may be adapted to measure different refrigerant pressures and generate respective pressure signals.
Advantek Consulting Engineering, Inc.

Feedback controlled system for ignition promoter droplet generation

An engine system is disclosed. The engine system may have an engine including at least one cylinder.
Caterpillar Inc.

Control system of internal combustion engine

The internal combustion engine comprises an exhaust purification catalyst and a downstream side air-fuel ratio sensor which is arranged at a downstream side of the exhaust purification catalyst. The control system performs feedback control so that the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst becomes a target air-fuel ratio and performs learning control which corrects the control center air-fuel ratio based on the output air-fuel ratio of the downstream side air-fuel ratio sensor.
Toyota Jidosha Kabushiki Kaisha

Feedback controlled system for charged ignition promoter droplet distribution

An engine system is disclosed. The engine system may have an engine including at least one cylinder.
Caterpillar Inc.

Proportional electrohydraulic servo valve closed loop feedback control of pressure reducing and relieving hydraulic circuit

Systems, devices and methods for regulating pressure in a blowout preventer (bop) of a subsea well assembly. A closed loop regulator (clr) that combines the functions of a pressure relieving valve and a pressure reducing valve into one body to control the pressure of a hydraulic circuit or a bop mux control pod.
Hydril Usa Distribution Llc

Electrosurgical generator and methods

The disclosed technology is directed to a rf power generator and feedback control system used to regulate the electrical power delivered to a cutting filament (i.e., a cutting electrode) of an electrosurgical instrument. The electrosurgical instrument uses the delivered energy to form a cutting arc for ablating a tissue mass to access a target tissue therein.
Covidien Ag

Correction device, correction device controlling method, information processing program, and recording medium

Improvement of following performance about a target value is achieved in a control system, particularly a feedback control system. A command value correcting device corrects a current-control-cycle command value received with a feedback controller using a current-control-cycle controlled variable of a control target..
Omron Corporation

Wind turbinecontroller with pitch feedback control loop in partial load

The present invention relates to control of the power output of wind turbine generator that operates in derated mode to generate a produced power output level lower than an available power level. A pitch system 48 sets the blade pitch of a rotor to a pitch value based on the received power reference signal 40.
Vestas Wind Systems A/s

Camera-based vehicle position determination with known target

A vehicle control system capable of moving a vehicle to a target location is disclosed. According to a preferred embodiment, a camera captures one or more images of a known object corresponding to the target location.
Faraday&future Inc.

Feedback control of fuel reformer-engine system

A system for reforming a fuel may include a first sensor configured to measure an operating parameter of an engine. The operating parameter may correlate to a nox emission level of the engine.

Shift control system for automatic transmission

A shift control system that reduces drop in driving force and shocks during execution of clutch-to-clutch upshifting is provided. The control system is configured to reduce a torque transmitting capacity of a first clutch at a predetermined rate while increasing a torque transmitting capacity of a second clutch with a reduction in the torque transmitting capacity of the first clutch during execution of the upshifting, to set a target speed of the engine to a level determined by adding a predetermined speed to a synchronous engine speed corresponding to a low speed stage, during a torque phase in which the torque transmitting capacity of the first clutch is being reduced and the torque transmitting capacity of the second clutch is being increased, and to execute a feedback control of an engine torque in such a manner as to maintain the engine speed to the target speed based on a difference between the target speed and an actual engine speed..

Intelligent high resolution video system

An automated electronic video surveillance system enables a high-resolution mega-pixel camera to capture high quality, detailed, magnified images at multiple locations, simultaneously with an overview of the whole scene. A preferred embodiment requiring no moving parts provides full 360-degree continuous viewing with up to 5x all-digital zoom capability.
Avigilon Analytics Corporation

Tunable logarithmic amplifier

The disclosure concerns a tunable logarithmic detector amplifier (tlda) system where dynamic tuning functionality is applied to resonant circuits used for feedback control as well as applying tuning to the amplifier. Control signals for the tuning function are generated from the baseband processor.
Ethertronics, Inc.

Method of measuring a topographic profile and/or a topographic image

Measuring a topographic profile and/or a topographic image of a surface of a sample includes positioning an indenter out of contact with a sample and in a constant position with respect to a headstock; positioning a topographic tip to detect a surface of the sample and positioning a reference structure at a predetermined distance from said surface; measuring the relative position of the indenter with respect to the reference structure by a relative position sensor; translating said sample perpendicular to said longitudinal axis while maintaining the reference structure at said predetermined distance from the surface of the sample by the feedback control system and the second actuator while measuring the relative position of the indenter with respect to the reference structure by the relative position sensor; and generating a topographic profile and/or a topographic image based on measurements of the relative position.. .
Anton Paar Tritec Sa

Thermal actuators and related methods

Presently disclosed thermal actuators may be incorporated into a self-regulating thermal insulation, such that expansion and contraction of the thermal actuators in response to changes in temperature adjacent the thermal insulation automatically changes the thermal resistance of the thermal insulation. In this manner, a self-regulating thermal insulation may be configured to locally adjust in response to local changes in temperature of a part being insulated, for example, during curing or some other manufacturing process.
The Boeing Company

Self-regulating thermal insulation and related methods

Presently disclosed self-regulating thermal insulation may include one or more thermal actuators that may expand and contract in response to changes in temperature adjacent the thermal insulation, thereby automatically changing the thermal resistance of the thermal insulation. In this manner, a self-regulating thermal insulation may be configured to locally adjust in response to local changes in temperature of a part being insulated, for example, during curing or some other manufacturing process.
The Boeing Company

Method and apparatus to control a continuously variable transmission

A continuously variable transmission (cvt) including a hydraulically-controllable variator is described. A method for controlling the cvt includes detecting a transient event causing a commanded change in a speed ratio of the variator and disabling feedback control of hydraulic pressure to the variator during the transient event.
Gm Global Technology Operations Llc

Social media modification of behavior and mobile screening for impairment

Techniques for modifying user behavior and screening for impairment using a mobile feedback controller, such as a smartwatch, are provided. In one aspect, a method for monitoring a user includes the steps of: collecting real-time data from the user, wherein the data is collected via a mobile feedback controller worn by the user; determining whether the data collected from the user indicates impairment; determining appropriate corrective actions to be taken if the data collected from the user indicates impairment, otherwise continuing to collect data from the user in real-time; determining whether any action is needed; and undertaking the appropriate corrective actions if action is needed, otherwise continuing to collect data from the user in real-time..
International Business Machines Corporation

Feedback control for improved rare cell detection

There is provided a system (10) and method (100) for improving icc and/or ish rare cell detection by lowering background noise and providing enhanced detection of rare cells (15). In an embodiment, background noise for an icc and/or an ish rare cell detection assay is reduced and rare cell signaling is enhanced via feedback control.
Siemens Healthcare Diganostics Inc.

Motor driving device and motor system

The phase of a drive current of a motor is optimized. The phase arithmetic unit phcal calculates a drive voltage phase θdrv to converge the phase difference between the reference voltage phase θbemf and the reference current phase θi to zero based on a prescribed arithmetic expression.
Renesas Electronics Corporation

Power supply device and image forming device

A power supply device including: a transformer generating, from an input voltage, low output voltage and high output voltage; an upper limiter circuit receiving the high output voltage and controlling the high output voltage not to exceed a maximum; a power controller performing feedback control on the input voltage so that the low output voltage matches a target voltage; an operation mode acquirer configured to acquire an operation mode of an image forming device; and a target value controller configured to change the target voltage depending upon the acquired operation mode. The target voltage when consumption amount of current with the high output voltage is relatively great ensures that the high output voltage does not fall below a minimum of a rated voltage range of the high output voltage, and is higher than the target voltage when consumption amount of current with the high output voltage is relatively small..
Konica Minolta, Inc.

Sensor arrangement for position sensing

A sensor arrangement for position sensing comprises a magnetic field source and a magnetoresistive element arranged in a magnetic field generated by the magnetic field source, which magnetoresistive element provides an output signal (r) dependent on a position (x) of the magnetoresistive element relative to the magnetic field source. A feedback controller is configured to receive the output signal (r) of the magnetoresistive element and is configured to adjust one or more of the position (x) of the magnetoresistive element relative to the magnetic field source and a strength of the magnetic field generated by the magnetic field source acting on the magnetoresistive element dependent on the output signal (r) of the magnetoresistive element..
International Business Machines Corporation

Control system of internal combustion engine

An internal combustion engine comprises an exhaust purification catalyst and a downstream side air-fuel ratio sensor which is arranged at the downstream side of the exhaust purification catalyst. The control system performs feedback control so that the air-fuel ratio of the exhaust gas becomes the target air-fuel ratio, and performs learning control to correct the control center air-fuel ratio based on the output air-fuel ratio of the downstream side sensor.
Toyota Jidosha Kabushiki Kaisha

Failure detector of turbocharged engine

When opening or closing an exhaust cut valve in accordance with an operation range of an engine and performing feedback control for an opening degree of a wastegate valve such that a target supercharging pressure is achieved in each of an open operation range where the exhaust cut valve is opened and a closed operation range where the exhaust cut valve is closed, a failure of the exhaust cut valve can be accurately determined. Whether or not an abnormal state occurs is determined in each range.
Mazda Motor Corporation

Position feedback control method and power tool

Various embodiments of power tool and method of operating same are described. The power tool may include a first position sensor, a second position sensor, a third position sensor, and a controller.
Sears Brands, L.l.c.

Methods and systems for coherent imaging and feedback control for modification of materials

Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light.
Queen's University At Kingston

Methods and systems for coherent imaging and feedback control for modification of materials

Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser, sintering, and welding applications. An imaging optical source that produces imaging light.
Queen's University At Kingston

Motor control unit and electric power steering apparatus using the same and vehicle

A motor control unit that does not make an occurrence of a noisy sound and a vibration and does not give a steering discomfort by changing parameters of a current feedback control section even if an electric characteristic of the motor varies with a system-switching due to a failure occurrence, and to an electric power steering apparatus using the same and a vehicle. The motor control unit controls a motor having multi-system motor windings by means of a 3-phase current feedback system provided with a current control section through a motor driving circuit of each winding system, having a function that changes by switching parameters of the current control section corresponding to a driving system number of the multi-system motor windings..
Nsk Ltd.

Method of controlling static pressure in the reservoir of a liquefied gas and proppant blender

The present invention concerns a feedback control method for adjusting the proppant concentration in a fracturing fluid that is utilized in stimulation of an underground formation.. .

Feedback control optimization of counter-flow simultaneous heat and mass exchange

A counter-flow simultaneous heat and mass exchange device is operated by directing flows of two fluids into a heat and mass exchange device at initial mass flow rates where ideal changes in total enthalpy rates of the two fluids are unequal. At least one of the following state variables in the fluids is measured: temperature, pressure and concentration, which together define the thermodynamic state of the two fluid streams at the points of entry to and exit from the device.
Gradiant Corporation

Frequency generating circuit using quartz crystal resonator

A frequency generating circuit includes: a differential delay circuit arranged to operably delay an input signal to generate a first delayed signal and a second delayed signal; a quartz crystal resonator arranged to operably conduct a band-pass filtering operation on one of the first and second delayed signals to generate a frequency signal; a compensation capacitor, coupled between another output of the differential delay circuit and an output of the quartz crystal resonator, arranged to operably suppress noise in the frequency signal; an oscillator arranged to operably generate an oscillating signal under control of a control signal; a frequency divider arranged to operably conduct a frequency-dividing operation on the oscillating signal to generate the input signal; and a feedback control circuit arranged to operably generate the control signal according to the frequency signal.. .

Rotary electric machine control device

The magnetic pole position of a rotary electric machine is electrically derived accurately by reducing a voltage error due to a dead time while suppressing the influence on the operation efficiency of the rotary electric machine. A control device performs dead-time compensation, and performs current feedback control in a d-q-axis vector coordinate system using a magnetic pole position computed on the basis of an induced voltage produced by rotation of a rotor or on the basis of a response component to a high-frequency observation signal applied to the rotary electric machine.
Aisin Aw Co., Ltd.

Control device of turbocharged engine

When it is detected that an exhaust cut valve is stuck in a closed state, a control device stops feedback control and maintains a wastegate valve in a completely open state in each of an open operation range and a closed operation range. When it is detected that the exhaust cut valve is stuck in an open state, the control device stops the feedback control and maintains the wastegate valve in the completely open state in the closed operation range, whereas the control device performs the feedback control in the open operation range..
Mazda Motor Corporation

Steering control apparatus

A steering control apparatus is provided which allows mitigation of an adverse effect of a technique for fixing a regulation member to a vehicle body on a phenomenon resulting from execution of steering operation control on steered wheels. An axial-force acquisition processing circuit calculates a rack axial force based on currents iu, iv, and iw flowing through a steering operation motor.
Jtekt Corporation

Low voltage crystal oscillator (xtal) driver with feedback controlled duty cycling for ultra low power

A low voltage crystal oscillator (xtal) driver with feedback controlled duty cycling for ultra low power biases an amplifier for an xtal in the sub-threshold operating regime. A feedback control scheme can be used to bias the amplifier for an xtal biased in the sub-threshold operating regime.
University Of Virginia Patent Foundation

Measuring device for property of photovoltaic device and measuring method using the same

A measuring device for the property of a photovoltaic device and a measuring method using the same are provided. The measuring device includes several light sources and a feedback control module.
Industrial Technology Research Institute

Vibration control apparatus, lithography apparatus, and manufacturing article

The present invention provides a vibration control apparatus which controls vibration of an object supported via a support having a damping coefficient, the apparatus comprising a driving device configured to drive the object, and a controller configured to perform negative feedback control of the driving device based on information of vibration of the object, wherein the controller is configured to perform positive feedback control of the driving device based on information of a velocity of the object so as to reduce a force which the support causes to act on the object in accordance with the velocity.. .
Canon Kabushiki Kaisha

Method and data transmission

A network device and ue determine that the ue is handed over from a first network device to a second network device, and in a handover process, the first network device or the second network device sends a feedback control message to the ue to query for a quantity of fountain codes that are needed to continue to send, and the second network device continues to perform encoding according to the quantity of fountain codes that are needed to continue to send, and sends encoded data to the ue. In an uplink process, the ue sends a feedback control to the second network device and obtains a quantity of data packets that are needed to continue to encode, and sends a first data packet to the second network device.
Huawei Technologies Co., Ltd.

Power source management method and power source

A power source management method and a power source are provided. The method includes: comparing a feedforward control signal with a feedback control signal by using a logic control circuit, outputting the signals after the comparison, and performing matching, to obtain control signals of switching transistors of a full-bridge topology circuit; and adjusting the control signals of the switching transistors of the full-bridge topology circuit by using the logic control circuit, so that operating duty cycles of two bridge arms on a primary side match, are symmetric within one switch period of the logic control circuit, or match for a long time, to prevent transformer biasing.
Huawei Technologies Co., Ltd

Exhaust purification system of internal combustion engine

The exhaust purification system comprises a control apparatus performing main feedback control controlling the amount of fed fuel so that the output air-fuel ratio of the upstream side sensor becomes a target value, sub feedback control setting the target air-fuel based on the output air-fuel ratio of the downstream side sensor, main learning control controlling the amount of fed fuel based on a main learning value, and sub learning control controlling the amount of fed fuel based on a sub learning value. The control apparatus performs sub learning promotion control so that the sub learning value easily changes to a suitable value when a sub learning promotion condition, which is satisfied when the absolute values of the main learning value and the sub learning value are respectively predetermined reference absolute values or more and these learning values are opposite in sign, is satisfied..
Toyota Jidosha Kabushiki Kaisha

Analyte detection devices and methods with hematocrit/volume correction and feedback control

Disclosed are devices, arrangements and methods for quantifying the concentration of an analyte present in bodily fluid, including: an assay pad having at least one chemical reagent capable of producing a detectable signal in the form of a reaction spot upon reaction with the analyte; a light source; a detector array; a processor; and a memory in communication with the processor, the memory comprising: (a) at least one value indicative of one or more of: (i) the level of hematocrit contained in the sample; (ii) the volume of the sample applied to the assay pad; or (iii) imperfections present in the reaction spot; and (b) at least one algorithm for calculating the concentration of the analyte contained in the sample.. .
Intuity Medical, Inc.

Systems and methods for control of a closed-loop system

In accordance with embodiments of the present disclosure, a system may include a feedback controller and a comparator. The feedback controller may be configured to, based on a setpoint value and a measured process value calculate a first difference between the setpoint value and the measured process value and generate a controller driving signal based on the first difference.
Dell Products L.p.

Feedback control of food texture system and method

A feedback and feedforward as well as a statistical predictive control system and method for continuously controlling texture of a food snack in a manufacturing process. The feedback system includes a quantitative texture measuring tool that is positioned downstream of a food processing unit.
Frito-lay North America, Inc.

Fluid pressure producing method and fluid pressure producing device

A fluid pressure producing method reduces fluctuations in the pressure of a fluid pressurized using a plunger driven by applying the pressure of a working medium to a double-acting piston. The method includes switching a moving direction of the piston when detecting the piston reaching a movement end, operating the working medium pump to discharge the working medium at a maximum flow rate while the load is less than the load limit after the moving direction of the piston is switched, and detecting a pressure of the fluid and feeding back the detected pressure of the fluid and performing feedback control of the pressure of the fluid to eliminate a difference between the pressure of the fluid and a target pressure of the fluid..
Sugino Machine Limited

Cooling control device

A cooling control device includes: a cooling liquid pump whose rotational speed is set in accordance with a rotational speed of an engine; a cooling flow path and a heat exchanger which cool cooling liquid discharged from the engine; a flow rate control valve which is provided in the cooling flow path, changes an opening degree by driving a motor, and adjusts a flow rate of the cooling liquid; and a control portion which feedback-controls the opening degree of the flow rate control valve based on a difference between a temperature of the cooling liquid and a target temperature of the cooling liquid, and corrects a gain of the feedback control in accordance with the rotational speed of the engine.. .
Aisin Seiki Kabushiki Kaisha

Feedback control of vehicle aerodynamics

A system is configured to control aerodynamics of a vehicle. The vehicle includes a body having a front end facing oncoming ambient airflow.
Gm Global Technology Operations Llc

Rheology system and mr rheology system with rheology sensor feedback control

The present invention provides a rheology system (202) comprising a rheology transducer device (204) for introducing mechanical waves into a subject of interest (120), whereby the rheology transducer device (204) comprises multiple transducers (212), a driving device (206) for driving the rheology transducer device (204), a sensor device (208) for sensing mechanical waves at the subject of interest (120), and a control device (210) for receiving input from the sensor device (208) and for controlling the driving device (206) based on the received input from the sensor device (208). The present invention further provides a mr rheology system (200) comprising a mr imaging system (110), and the above rheology system (202), whereby the mr imaging system (110) is adapted to control the rheology system (200).
Koninklijke Philips N.v.

Feedback control of food texture system and method

A feedback and feedforward as well as a statistical predictive control system and method for continuously controlling texture of a food snack in a manufacturing process. The feedback system includes a quantitative texture measuring tool that is positioned downstream of a food processing unit.
Frito-lay North America, Inc.

Voltage regulator having enhancing linearity

A voltage regulator includes a high duty cycle detector, a feedback controller, a hysteretic comparator, and first and second drivers. The high duty cycle detector generates a high duty cycle signal based on a power supply voltage and a reference voltage.
Samsung Electronics Co., Ltd.

Class ab amplifier with bias control

An amplifier arrangement comprising first and second power amplifiers (t1, t2) having drains connected to positive and negative drive voltages, respectively, and gates connected to an input signal. The arrangement further comprises first and second current sensors (1, 2) for detecting first and second drain currents from the power amplifiers, processing circuitry (3) adapted to identify the smallest drain current, and a feedback control loop (5) and means for driving a bias current dependent on a feedback signal through a resistor connected between the input signal and the gate of an inactive one of the first and second power amplifiers.
Bang & Olufsen A/s

Driving control bldc motor

Provided is driving control method of brushless dc (bldc) motor, including: a step of initial driving command input, initially inputting a driving command to the bldc motor; a step of the first position alignment, compulsively aligning rotor of the bldc motor at a predetermined position; a step of forced driving, compulsively driving the rotor of the bldc motor compulsively aligned by accelerating the rotor of the bldc motor; a step of feedback control, performing feedback control of the bldc motor; a step of driving off, inputting a stop command to the bldc motor; and a step of the second position alignment, compulsively aligning the rotor of the bldc motor at the predetermined position again.. .
Coavis

Engine device

An engine device includes a main throttle valve disposed at a portion where an outlet of a supercharger and an inlet of an intercooler are coupled to each other, an exhaust bypass flow path configured to couple an outlet of an exhaust manifold to an exhaust outlet of the supercharger, an exhaust bypass valve disposed in the exhaust bypass flow path, an air supply bypass flow path configured to bypass a compressor of the supercharger, and an air supply bypass valve disposed in the air supply bypass flow path. Within a low load range of a load on the engine device, when the load is lower than a predetermined load, feedback control is performed on the main throttle valve, and when the load is higher than the predetermined load, map control based on a data table is performed on the main throttle valve..
Yanmar Co., Ltd.

Engine device

When a load on an engine device is lower than a first predetermined load falling within a low load range, feedback control is performed on a main throttle valve. When the load is higher than the first predetermined load, map control based on a data table is performed on the main throttle valve.
Yanmar Co., Ltd.

System and controlling valve timing of continuous variable valve duration engine

A method for controlling valve timing of continuous variable valve duration engine may include continuous variable valve duration (cvvd) device and continuous variable valve timing (cvvt) device including determining target intake valve open (ivo) timing, target intake valve close (ivc) timing, target exhaust valve open (evo) timing and target exhaust valve close (evc) timing; determining target intake cvvd, target exhaust cvvd, target intake cvvt and target exhaust cvvt to satisfy the target ivo, ivc, evo, and evc timings; performing feedback control of the cvvd by learning minimum value of the cvvd and maximum value of the cvvd; performing feedback control of the cvvt based on profile information of the valve; and determining real ivo timing, real ivc timing, real evo timing, and real evc timing based on the feedback control of the cvvd and the feedback control of the cvvt.. .
Hyundai Motor Company

Oscillatory feedback control in a vehicle steering system

A system and method for controlling the provision of oscillatory feedback through a steering system of a vehicle. The method carried out by the system includes receiving a request to provide oscillatory feedback through the steering system of the vehicle, acquiring a value of a steering angle-related parameter, and comparing the value of the steering angle-related parameter to a predetermined threshold value.
Jaguar Land Rover Limited

System and providing real-time visual feedback to control multiple autonomous nano-robots

The present invention relates to a system and method for providing real-time visual feedback to automatically control actions of multiple autonomous nano-robots with manipulators in order to perform specific nano-manipulation or nano-assembly tasks. In the system and method of the present invention, the visual feedback is obtained for the nano-manipulators and the nano-components via an electronic microscopy system.
Jordan University Of Science And Technology

Probe actuation system with feedback controller

A probe actuation system has a detection system arranged to measure a position or angle of a probe to generate a detection signal. An illumination system is arranged to illuminate the probe.
Infinitesima Limited

System, device, and fluid dispensing control

A system for fluid dispensing control includes a fluid dispensing control device, a fluid dispenser, and a fluid flow meter, such that an intelligent parameterization of the dispensing system includes process variables, which characterize system behavior. The parameterization is used in convergence schemes for attaining defined fluid dispensing targets.

Aircraft attitude control methods

Systems and methods are provided for aircraft attitude control. The aircraft attitude control may take physical parameters of the aircraft into account.
Sz Dji Technology Co., Ltd.

Systems and methods for repair redundancy control for large erasure coded data storage

Systems and methods which implement storage system data repair control techniques, such as may provide a feedback control structure for regulating source object redundancy and/or repair bandwidth in the storage system. Embodiments control a source object redundancy level to be used in a storage system by analyzing source objects represented in a repair queue to determine repair rate metrics for the source objects and determining a source object redundancy level based on the repair rate metrics.
Qualcomm Incorporated

Systems and methods for repair rate control for large erasure coded data storage

Systems and methods which implement repair bandwidth control techniques, such as may provide a feedback control structure for regulating repair bandwidth in the storage system. Embodiments control a source object repair rate in a storage system by analyzing source objects represented in a repair queue to determine repair rate metrics for the source objects and determining a repair rate based on the repair rate metrics to provide a determined level of recovery of source data stored as by the source objects and to provide a determined level of repair efficiency in the storage system.
Qualcomm Incorporated

Self-feedback control circuit

A self-feedback control circuit is connected to a controller area network bus for controlling a high-level output and a low-level output, comprising a controller area network driving circuit and a replica circuit. The replica circuit is connected in parallel with the controller area network driving circuit and comprises an upper feedback path and a lower feedback path.
Amazing Microelectronic Corp.

Load driving device, and lighting apparatus and liquid crystal display device using the same

A load driving device disclosed in the specification includes a power supply circuit for supplying to a load an output voltage converted from an input voltage, a detection voltage generation circuit for generating a detection voltage which varies depending on a magnitude of a voltage drop which across the load, and a control circuit for controlling the power supply circuit so that it performs output feedback control of the output voltage, on the basis of the detection voltage.. .
Rohm Co., Ltd.

Antenna device and control antenna device

The antenna device includes an antenna unit (110) mounted so that its direction is adjustable, a motor-driven unit (124, 125) that changes a direction of the antenna unit (110), a camera (130) fixed so that its direction relative to the antenna unit (110) does not change, and a direction adjustment control unit (200) that supplies a drive signal to the motor-driven unit (124, 125) and adjusts the direction of the antenna unit (110). The direction adjustment control unit (200) performs feedback control to return the direction of the antenna unit (110) back to an initial direction based on an image taken by the camera (130).
Nec Corporation

Feedback control by rf waveform tailoring for ion energy distribution

A system for controlling rf power supplies applying power to a load, such as a plasma chamber, includes a master power supply and a slave power supply. The master power supply provides a control signal, such as a frequency and phase signal, to the slave power supply.
Mks Instruments, Inc.

Dither current power supply control method and dither current power supply control apparatus

In the dither current power supply control method, in order to prevent occurrence of a difference between the target average current and the detected average current, which is caused when a medium current (i0) between a dither large current (i2) and a dither small current (i1) and a waveform average (ia) of the dither current are different from each other depending on a response time difference (a−b) between a rise time (b) and a fall time (a) of the dither current, negative feedback control is carried out by using a command medium current corresponding to the target average current corrected by a correction parameter based on experimentally measured data, thereby suppressing occurrence of a transient fluctuation error by the negative feedback control, so that a highly precise and stable load current is acquired.. .
Mitsubishi Electric Corporation

Auto-tuning

This invention relates to the automated tuning and calibration of feedback control of systems and processes. According to the present invention a series of actuator pulses are automatically performed and, based on the gradient of the sensor response, information is determined on the dynamics of the system to be controlled (this will be known as the system identification procedure).
Agc Flat Glass North America, Inc.

Gas sensor control apparatus

A gas sensor control apparatus including a gas sensor element, a heater for heating the gas sensor element, and heater energization control means for feedback controlling the supply of electric current to the heater such that the internal resistance of the gas sensor element coincides with a target resistance. The gas sensor element has a solid electrolyte member and an electrode portion including an outside electrode and an inside electrode.
Ngk Spark Plug Co., Ltd.

Electrosurgical handpiece

An electrosurgical tool includes an electrically powered handpiece with a detachable electrode at one end and a power connection at the other. A mechanism for connecting the detachable electrode to the handpiece includes a keyed electrical connection to power the electrode.

Agricultural harvester including feedback control of chopping parameters

An agricultural harvester for harvesting a crop on a field. The harvester includes a chopping assembly configured to chop a crop residue of the harvested crop.
Cnh Industrial America Llc

Controller for supercharger-equipped internal combustion engine

A controller, for a supercharger-equipped internal combustion engine, that can improve the feedback response of compressor driving force is provided. In a controller, inertial force produced by an inertial moment of a supercharger is calculated, based on a real rotation speed of the supercharger; then, driving force feedback control is implemented in which a gate valve control value, which is a control value for a gate valve actuator, is changed so that an addition value obtained by adding the inertial force to the real compressor driving force approaches a target compressor driving force..
Mazda Motor Corporation

Coffee machine and relative control method

The coffee machine comprises at least one hydraulic infusion circuit comprising at least one feed pump (2) for supplying water, at least one boiler (3) hydraulically connected to the feed pump (2) by cascade connection, at least one infusion unit (4) that is hydraulically connected to the boiler (3) by cascade connection and through which a flow rate of hot water can pass for execution of an infusion cycle, means for regulating the flow rate of the water, means for measuring said flow rate of the water, and a feedback controller (6) connected to the regulating means and to the measuring means and configured to compare in real time the current value of the flow rate of the water, as measured by the measuring means, with a corresponding reference value, and to control the regulating means so as to eliminate any deviation of the current value with respect to the corresponding reference value.. .
Cma Macchine Per Caffe' S.r.l.

Power supply apparatus and power supply control method

A power supply apparatus includes: a power supply circuit, including a switch configured to perform switching at a frequency, configured to generate an output voltage to be supplied to a load device; a phase compensator configured to perform feedback control of switching duty of the switch in accordance with the output voltage, and change a response characteristic of the output voltage to a load fluctuation of the load device in accordance with a reference voltage and the output voltage; and a controller configured to apply a pilot signal over a frequency range to the reference voltage, monitor the output voltage, and control the response characteristic in accordance with the pilot signal and the output voltage.. .
Fujitsu Limited

Power conversion apparatus, power generation system, controller, and performing control

A power conversion apparatus includes a power converter, a target command controller, a feedback controller, and a gain adjustor. The power converter is configured to convert first power supplied from a power generation source into second power.
Kabushiki Kaisha Yaskawa Denki

Feedback control device

A feedback control apparatus includes: a detector configured to detect an output value based on a controlled object; a p control circuit including a differential amplifier circuit and an analog circuit, the differential amplifier circuit being configured to receive a detection value of the detector and a target value, the analog circuit being configured to output a p control component vp to an output of the differential amplifier circuit; an i control unit configured to output an i control component vi by integrating a deviation of the detection value from the target value by digital processing; and a driver element configured to be driven based on the p control component vp from the p control circuit and the i control component vi from the i control unit to control the controlled object.. .
Shimadzu Corporation

Ignition device

An ignition device at least equipped with a dc power source, an ignition coil unit, a spark plug, an ignition switch, and an auxiliary power source, wherein the auxiliary power source is at least equipped with a discharge energy accumulating means, a discharge switch, and a discharge driver. The ignition device is further equipped with a secondary-current feedback controlling means comprising a secondary current detecting means for detecting a secondary current flowing during the ignition coil unit discharge period, and a secondary current feedback control circuit-for determining an upper limit and a lower limit for the secondary current from binary threshold values, and driving so as to open and close the discharge switch on the basis of the determination results.
Denso Corporation

Control device and control method

A control device that controls a fuel gas supply system that has: a compressor that supplies compressed fuel gas to a load apparatus; an inflow amount regulating means that regulates the amount of fuel gas that flows into the compressor; an anti-surge valve that is for returning to an inlet side of the compressor fuel gas that is discharged from the compressor; and an inlet pressure-regulating valve that regulates the pressure of fuel gas supplied toward the inflow amount regulating means. The control device includes: a main pressure-regulating unit that controls the inflow amount regulating means and the anti-surge valve using a first feedforward control value that is generated on the basis of the load of the load apparatus and of a first conversion process and using a feedback control value that is generated on the basis of the deviation between a set value and a measured value for the discharge pressure of the compressor; and an inlet pressure-regulating unit that controls the inlet pressure-regulating valve using a second feedforward control value that is generated on the basis of the load of the load apparatus and of a second conversion process..
Mitsubishi Heavy Industries Compressor Corporation

Temperature regulation of measurement arrays

A system for regulating a temperature of a measurement array is disclosed. The system includes a measurement array including a plurality of sensors, wherein the plurality of sensors are integrated onto an integrated circuit die.
Genia Technologies, Inc.

Surgical system providing hands-free control of a surgical tool

A surgical system provides hands-free control of at least one surgical tool includes a robot having a tool connector, a smart tool attached to the tool connector of the robot, and a feedback control system configured to communicate with the smart tool to provide feedback control of the robot. The smart tool includes a tool that has a tool shaft having a distal end and a proximal end, a strain sensor arranged at a first position along the tool shaft, at least one of a second strain sensor or a torque-force sensor arranged at a second position along the tool shaft, the second position being more towards the proximal end of the tool shaft than the first position, and a signal processor configured to communicate with the strain sensor and the at least one of the second strain sensor or the torque-force sensor to receive detection signals therefrom.
The Johns Hopkins University

Image shake correction device, control method, and image pickup apparatus

An image shake correction device provided in an image pickup apparatus drives an image shake correction lens on the basis of detection information about shaking and corrects the image shake. An angular velocity sensor detects an angular velocity of shaking, and a motion vector detection unit detects a motion vector from a plurality of images that has been captured.
Canon Kabushiki Kaisha

Antenna driving device

An antenna driving device includes an antenna driving circuit arranged to generate driving current of a transmission antenna, a power supply circuit arranged to generate an output voltage from an input voltage so as to supply the output voltage to the antenna driving circuit, and a logic circuit arranged to control the antenna driving circuit and the power supply circuit. The power supply circuit has a function of temporarily disabling current feedback control so as to perform voltage feedback control using a reference value just before halting the drive of the transmission antenna when the power supply circuit restarts to drive the transmission antenna, or has a function of performing variable control of a reference value for current feedback control in accordance with a rising edge of the driving current when the power supply circuit restarts to drive the transmission antenna..
Rohm Co., Ltd.

Injection molding machine including mold rotating device

A first rotation controller that rotates a rotary table by feedback control based on a rotation amount detected by a rotation amount detection unit and a second rotation controller that rotates the rotary table by the feedback control based on a distance detected by a distance detection unit are included and rotation control by the first rotation controller is switched to that by the second rotation controller at a predetermined rotation angle.. .
Fanuc Corporation

Robot apparatus, robot controlling method, programming and recording medium

A joint driving unit driving a joint of a robot arm includes a motor, a speed reducer transmitting rotation of the motor in a variable speed, an input side encoder detecting a rotation angle of a rotation shaft of the motor, and an output side encoder detecting a rotation angle of an output shaft of the speed reducer. When positioning the end effector at a working start position at which predetermined work is started, operation of the robot is set to an output based control mode in which an angle of a joint is feedback controlled based on an angle detection value from the output side encoder.
Canon Kabushiki Kaisha

Low voltage crystal oscillator (xtal) driver with feedback controlled duty cycling for ultra low power

A low voltage crystal oscillator (xtal) driver with feedback controlled duty cycling for ultra low power biases an amplifier for an xtal in the sub-threshold operating regime. A feedback control scheme can be used to bias the amplifier for an xtal biased in the sub-threshold operating regime.
University Of Virginia Patent Foundation

Controlling power consumption

A computing system comprises one or more multicore processor(s) comprising a set of multiple processing units each operable at a variable frequency, and a main memory operable at a variable frequency. A feedback controller is configured to control the frequency of each processing unit of the set and the frequency of the main memory dependent on a measure representative of a current performance of an application running on one or more of the multiple processing units of the set..
International Business Machines Corporation

Pressurizing device, image forming apparatus, and control, pressurizing device

A pressurizing device includes: first and second rollers that holds a sheet-like medium with an image bearer formed on at least part of a surface of thereof between the first and second rollers and send the medium in a conveying direction while applying a pressure to the medium; a position control unit that performs feedback control of the position of at least one of the first and second rollers; a force control unit that performs feedback control of a force acting on between the first and second rollers; and a control-method switching unit that switches, after the position of the first and second rollers is switched from a separation position to a contact position by the feedback control performed by the position control unit, a feedback controlled object so that the force becomes a target value of nip pressure through the feedback control performed by the force control unit.. .
Ricoh Company, Ltd.

Control device of an engine

To improve the controllability of the feedback control of the boost pressure, an ecu comprises a valve control part that feedback controls a boost pressure of a turbocharger based on a deviation between a target boost pressure and an actual boost pressure, and a determination part that determines whether or not the exhaust state in an exhaust passage can achieve the target boost pressure, and the feedback control includes at least an integral term, and when the determination part determines the exhaust state cannot achieve the target boost pressure, the valve control part reduces the influence of the deviation on the calculation of integral term compared with that when the exhaust state can achieve the target boost pressure.. .
Mazda Motor Corporation

Power supply apparatus with active clamping circuit

A power supply apparatus includes a power supply circuit and an active clamping circuit. The power supply circuit includes a secondary side rectifying unit and a voltage output side.
Chicony Power Technology Co., Ltd.

Broadband tunable external-cavity laser using small mems mirror

A raman pump laser control apparatus comprises a wavelength division multiplexer, a tap coupler, a photoelectric detector, an analogue amplification processing circuit, an analogue-to-digital converter, a fast raman pump control unit, an digital-analog converter, and a raman pump laser. The fast raman pump control unit, after having known anticipated output light power of the raman pump laser, based on a direct relationship between a current anticipated output light power of the raman pump laser and input digital quantity that is needed by the digital-analog converter, uses a feedforward control mechanism so that actual output light power of the raman pump laser fastly approximates the anticipated output light power thereof, and then synchronously combines with a feedback control mechanism so that the actual output light power of the raman pump laser is precisely locked on the anticipated output light power, thereby achieving fast and precise control of the raman pump laser..
Accelink Technologies Co., Ltd.

Raman pump laser control apparatus and control method therefor

A raman pump laser control apparatus comprises a wavelength division multiplexer, a tap coupler, a photoelectric detector, an analogue amplification processing circuit, an analogue-to-digital converter, a fast raman pump control unit, an digital-analog converter, and a raman pump laser. The fast raman pump control unit, after having known anticipated output light power of the raman pump laser, based on a direct relationship between a current anticipated output light power of the raman pump laser and input digital quantity that is needed by the digital-analog converter, uses a feedforward control mechanism so that actual output light power of the raman pump laser fastly approximates the anticipated output light power thereof, and then synchronously combines with a feedback control mechanism so that the actual output light power of the raman pump laser is precisely locked on the anticipated output light power, thereby achieving fast and precise control of the raman pump laser..
Accelink Electronic Technology Co., Ltd

Substrate liquid processing apparatus, substrate liquid processing method, and storage medium

Disclosed is a substrate liquid processing apparatus including: a processing bath in which a processing liquid is stored; a chemical liquid component supply unit that supplies chemical liquid components; a concentration detecting unit that detects a concentration of the chemical liquid components; and a controller configured to perform a first control as a feedback control that replenishes the processing liquid with the chemical liquid components such that the concentration of the chemical liquid components contained in the processing liquid within the processing bath does not become less than a predetermined allowable lower limit, based on the concentration of the chemical liquid components detected by the concentration detecting unit. In addition, the controller performs a second control that replenishes the processing liquid with the chemical liquid components in a predetermined amount required to offset a reduction in concentration of the chemical liquid components caused by the introduction of the substrate..
Tokyo Electron Limited

Data-driven feedback control system for real-time application support in virtualized networks

Concepts and technologies disclosed herein are directed to data-driven feedback control system for an acceptable level of real-time application transaction completion rate in virtualized networks, while maximizing virtualized server utilization. According to one aspect disclosed herein, a network virtualization platform (“nvp”) includes a plurality of hardware resources, a virtual machine (“vm”), and a virtual machine monitor (“vmm”).
At&t Intellectual Property I, L.p.

Smart actuator for valve

A system and method of monitoring and controlling the open and close states of a manifold diaphragm type valve includes using an actuator mechanism with feedback control. A pressure transducer and/or force gauge located on the contact end of the actuator mechanism monitors the pressure and/or force applied to the end of the actuator mechanism.
Fresenius Medical Care Holdings, Inc.

Clutch apparatus and control clutch apparatus

A driving-force transmitting apparatus 1 includes first and second friction clutches, a piston that presses the first and second friction clutches, a hydraulic pump that feeds hydraulic oil to a cylinder chamber in the piston, an electric motor that drives the hydraulic pump, and a control apparatus that controls the electric motor to adjust the discharge pressure of the hydraulic pump. The control apparatus has a feedback control apparatus that controls the electric motor using a correction value based on a deviation between a target value and an actual value of the discharge pressure of the hydraulic pump, a hydraulic-oil temperature estimating apparatus that estimates a temperature of hydraulic oil, and a gain adjusting apparatus that changes a correction amount for feedback control in accordance with the estimated temperature of the hydraulic oil..
Jtekt Corporation

Control device for internal combustion engine

feedback control is executed based on a measured ca10 and a measured ca50 that are calculated based on measured data for mfb. The measured data is corrected in accordance with a pattern of a waveform of measured data for a heat release amount, and measured data for mfb is calculated.
Toyota Jidosha Kabushiki Kaisha

Steering control device

A steering control device restrains not only a steered angle but also a steering angle from exceeding their upper limit values. A maximum value selection circuit selects a maximum value of a target steered angle and a target steering angle as an end angle and outputs the end angle to a limiting reaction force setting circuit.
Jtekt Corporation

Steering control device

A steering control device can restrain a steering from being operated to cause a steered angle and a steering angle to exceed their upper limit values. A first limiting reaction force setting circuit increases a first reaction force rapidly if the steering angle becomes no smaller than a steering angle threshold.
Jtekt Corporation

Feedback control device

Motor control device includes a controller controlling a motor (a calculator controller and an electric current controller), and a detector (an electric current loop) detecting an electric current of the motor and returning the detected electric current to the controller. The electric current loop includes a first detection system, a second detection system, and an electric current calculator which sums output signals from each system.
Mitutoyo Corporation

Mobile terminal iris recognition having human-computer interaction mechanism

A mobile terminal iris recognition device having a human-computer interaction mechanism, the device includes a human-computer interaction module, an image acquisition module, an iris image analysis and processing module, a feedback control module and a power supply module. Also provided is an iris recognition method utilizing the device.
Beijing Irisking Co., Ltd

System, applying air pressure on a portion of the body of an individual

A system is provided by applying pressure to a portion of a body of an individual in a chamber having an aperture along a vertical axis for receiving the portion of the body of the individual. A pressure sensor is coupled to the chamber for measuring a pressure inside the chamber.

Vapor deposition method and vapor deposition apparatus

A vapor deposition method supplies a material gas onto a substrate while heating the substrate by a heater to sequentially form a plurality of films with vapor deposition, grows the film under a constant output control, which keeps an output of the heater at a predetermined output in each of the plurality of films, until a total film thickness of the films formed on the substrate reaches a threshold value, and grows the film under a temperature feedback control, which controls the output of the heater such that a temperature of the substrate measured by a radiation thermometer becomes a predetermined temperature, after the total film thickness reaches the threshold value.. .
Nuflare Technology, Inc.

Applying a correct factor derivative determining an orientation of a portable electronic device based on sense gravitation component linear accelerate filter data obtained

A method for determining an orientation of a portable or mobile electronic device includes determining an orientation of the device using at least a first inertial motion sensor (e.g., a gyroscope) with which the portable electronic device is equipped. A correction factor is provided to the orientation of the electronic device using a feedback control signal based on motion data obtained from at least a second inertial motion sensor (e.g.
Microsoft Technology Licensing, Llc

Control device for continuously variable transmission

A cvtecu includes a secondary-pressure control section and a line-pressure control section that performs a same-pressure control to equalize a line pressure and a secondary pressure with each other if a predetermined start condition is satisfied. The line-pressure control section realizes a same-pressure state between the line pressure and the secondary pressure by lowering the line pressure below a target secondary pressure, and then controls the line pressure such that an actual secondary pressure is brought to the target secondary pressure by hydraulic feedback control while maintaining the same-pressure state.
Jatco Ltd

Linear actuator and controlling the same

The present invention provides a linear actuator including a motor; a linear driving unit coupled to the motor and including a magnet; a sensor unit configured to sense a change amount of magnetic flux depending on a position of the magnet and convert the sensed change amount of magnetic flux into measured voltage data; a data unit in which reference voltage data corresponding to the change amount of magnetic flux depending on a position of the magnet is stored; and a judging unit configured to compare the reference voltage data with the measured voltage data at the corresponding position of the magnet. The present invention is advantageous in that, by compensation-controlling a position of the motor, feedback control may be performed in the step motor to secure performance of the product to which the present invention is applied.
Lg Innotek Co., Ltd.

Control system of internal combustion engine

The internal combustion engine comprises an exhaust purification catalyst able to store oxygen, and a downstream side air-fuel ratio sensor arranged at a downstream side of the exhaust purification catalyst in a direction of exhaust flow. The control system performs feedback control of an amount of fuel fed to a combustion chamber of the internal combustion engine so that an air-fuel ratio of exhaust gas flowing into the exhaust purification catalyst becomes a target air-fuel ratio and performs learning control to correct a parameter relating to the feedback control based on an air-fuel ratio of exhaust gas detected by the downstream side air-fuel ratio sensor.
Toyota Jidosha Kabushiki Kaisha

Driving force control method during engine clutch slipping of tmed hev

A driving force control method is provided for engine clutch slipping of a tmed hev that includes an engine 10 and a second motor 50, a first motor 30 disposed at a transmission side, an engine clutch 20 interposed between the engine 10 and the first motor 30, and a multi-clutch transmission 35 connected with an output terminal of the first motor 30. The method includes verifying whether a control for maintaining a target speed of the engine is achieved by an engine feedback control or by a second motor torque feedback control and applying clutch pressure for the clutch slipping with hydraulic pressure.
Hyundai Motor Company

Average current-mode feedback control of multi-channel class-d audio amplifier

Described herein are several configurations of class-d audio amplifiers, including a single-ended and a bridge-tied load (btl) configuration, in which voltage-mode control and average current-mode control circuitry in feedback loops can be included to control the outputs of the class-d amplifier to reduce open-loop errors and maintain a relatively high loop gain over an expected audio frequency range. The average current-mode control circuitry monitors current through a resistor common to both a current flow into a positive terminal of a loudspeaker associated with the amplifier and a current flow into a negative terminal of the loudspeaker.
Crestron Electronics, Inc.

Control device for internal combustion engine

feedback control is executed based on a measured ca10 and a measured ca50 that are calculated based on measured data for mfb. During steady operation a correlation index value ira that shows a degree of correlation between the measured data and reference data corresponding thereto is calculated.
Toyota Jidosha Kabushiki Kaisha

Waste filtration system

A waste filtration system is provided, suitable for separating waste content in a waste stream, for use in heat recovery, including a filter screen, auger and extractor pump. A novel filtering process includes steps of adjusting extraction rate of waste content by feedback measurement such that a target set-point is maintained.
International Wastewater Heat Recovery Systems Inc

Arc welding control method

The present invention improves the stability of arc welding carried out by cyclical repetition of forward feed and reverse feed of a weld wire, an arc welding control method includes repeated forward feed and reverse feed at a weld wire feed rate, according to a prescribed cycle and a prescribed amplitude, and generation of short-circuit time intervals and arc time intervals to carry out welding, wherein the feed rate cycle and/or the amplitude are set automatically on the basis of the average feed rate and the welding rate, or the wire deposition amount per unit of weld length. Further, in the event that the amplitude has changed, feedback control of the forward feed-side shift amount is carried out in such a way that the average value of the feed rate is constant.
Daihen Corporation

Base station and user terminal

A base station according to a first aspect allocates a gap pattern to a user terminal connected to an own cell based on a message received from the user terminal, the gap pattern defines timings in which the user terminal should monitor d2d signals transmitted from other user terminals at different frequencies than a frequency of the own cell. The base station includes a transmitter that transmits feedback control information to the user terminal, the feedback control information used to determine whether or not it is necessary for the user terminal to include, in the message, feedback corresponding to system information that is received by the user terminal at the different frequencies..
Kyocera Corporation

Slope wave generation circuit and digital-to-analog conversion circuit thereof, fingerprint identification system

The present disclosure, related to the technical field of fingerprint identification, discloses a ramp wave generation circuit, a digital-to-analog conversion circuit, and a fingerprint identification system. The ramp wave generation circuit comprises: an integrating circuit, configured to output a ramp wave signal; a signal regulation circuit, comprising a feedback control loop and a transconductance amplifier connected in series, wherein the feedback control loop monitors the ramp wave signal output by the integrating circuit, and outputs a regulation control signal to the transconductance amplifier, the transconductance amplifier corrects, according to the regulation control signal, a ramp wave signal output by the integrating circuit within a next period; and a voltage generation circuit, configured to respectively output a reference voltage signal to the integrating circuit and the signal regulation circuit..
Shenzhen Huiding Technology Co., Ltd.

Automated detection of fatigue cracks around fasteners using millimeter waveguide probe

An automated high-speed method for inspecting metal around fasteners and a computer-controlled apparatus for performing that inspection method. The apparatus comprises a multi-motion inspection head mounted on a scanning bridge, a robotic arm, or a robotic crawler vehicle.
The Boeing Company

Method of calibrating interferometer and interferometer using the same

A calibration method capable of improving distortion of a waveform of a point-spread-function without constantly executing feedback control to a wavelength-swept light source is provided. According to the present invention, an interference signal (s(t)) is generated by varying voltage (v) to be applied to a light source (1) within one period t, the interference signal (s(t)) is sampled at equal time intervals on a time axis, the point-spread-function is obtained through fourier transform by multiplying by a first window function, and a complex analysis signal including frequency information of light is obtained through inverse fourier transform by multiplying the point-spread-function by a second window function.
Kabushiki Kaisha Topcon

Non-contact magnetic steering

A non-contact steering device includes one or more magnetic rotors positioned near a metal strip. Each rotor includes one or more permanent magnets and rotates to impart a changing magnetic field on the metal strip passing nearby.
Novelis Inc.

Internal combustion engine

An internal combustion engine comprises an upstream side air-fuel ratio sensor, a downstream side air-fuel ratio sensor, an air-fuel ratio control means, a learning means and an abnormality judging means. When the air-fuel ratio control means sets the target air-fuel ratio to a first side of a rich side or a lean side, if it is judged that the air-fuel ratio of the outflowing exhaust gas is maintained at a second side at an opposite side to the first side for a predetermined air-fuel ratio maintenance judgment time or more, the learning means corrects a parameter relating to the feedback control so that the air-fuel ratio of the inflowing exhaust gas changes to the first side.
Toyota Jidosha Kabushiki Kaisha

Output light monitoring for benchmarking and enhanced control of a display system

An apparatus displaying content to a viewer by adjusting parameters of the content or display devices based on environmental or display device changes. The apparatus includes a display device with a screen providing digital content.
Disney Enterprises, Inc.

Digital control power circuit, control circuit thereof, control method, and electronic device using the same

A control circuit of a digital control power circuit is provided. The control circuit includes a feedback controller configured to generate a digital duty command value such that a digital feedback value corresponding to an output voltage of the digital control power circuit is close to a target value thereof, a pulse generator configured to generate a pulse signal having a duty ratio corresponding to the digital duty command value, a non-linear controller configured to correct a pulse width of the pulse signal when a variation in the output voltage is detected, and a driver configured to drive a switching device of the digital control power circuit depending on the pulse signal..
Rohm Co., Ltd.

Apparatus for providing haptic force feedback to user interacting with virtual object in virtual space

An apparatus for providing haptic force feedback to a user interacting with a virtual object in a virtual space is provided. The apparatus includes a force-feedback provision unit providing a sensation of touch arising from an interaction with the virtual object to at least a portion of the user's body.
Center Of Human-centered Interaction For Coexistence

Control circuit that performs a feedback control operation to control an object

A control circuit includes a proportional control unit configured to calculate a proportional value of a difference between an operating value fed back from an object to be controlled and a target value, as a first output value, an integration unit including a suppressing section, the integration unit configured to calculate an integrated value by adding the difference and a previously-calculated integrated value as processed by the suppressing section, and a second output value based on the integrated value, and an output unit configured to output, to the object, a control signal having a value based on the first and second output values. The suppressing section modifies the previously-calculated integrated value to be in a predetermined range if the previously-calculated integrated value is outside the predetermined range..
Kabushiki Kaisha Toshiba



Feedback Control topics:
  • Feedback Control
  • Plasma Reactor
  • Base Station
  • Modulation
  • Neuromodulation
  • Gradient Coil
  • Mobile Terminal
  • Data Channel
  • Radio Communication
  • Communications
  • Hyperactivity
  • Hypertension
  • Blood Pressure
  • Continuously Variable Transmission
  • Control Unit


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