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Controlled Variable patents

      

This page is updated frequently with new Controlled Variable-related patent applications.




 Method and device for operating a pump patent thumbnailMethod and device for operating a pump
The invention relates to a method and to a device for calibrating a pump (1) provided in a pump line (6), the device comprising an actuator (2) for setting the pumping capacity of the pump (1), and a control unit (3). The device comprises a flow monitor (4) in the fuel line (6).
Avl List Gmbh


 Eyewear with variable optical characteristics patent thumbnailEyewear with variable optical characteristics
Embodiments disclosed herein include eyewear that provides controlled variable light attenuation and color enhancement based on an input received from a user, a sensor and/or a signal from a control circuit. In some embodiments, the eyewear includes an optical filter system with two or more defined filter states that are adapted to improve color vision in different environments.

 Poe controlled light fixtures with incorporated poe controlled variable conditioned air vents patent thumbnailPoe controlled light fixtures with incorporated poe controlled variable conditioned air vents
A luminaire for lighting and for distribution of conditioned air within a space includes a housing having a lighting element, a duct opening, and at least one air vent coupled to the duct opening. The at least one air vent is configured to deliver conditioned air to the space.
Innovative Lighting, Llc


 Condition-based powertrain control system patent thumbnailCondition-based powertrain control system
A system and approach for development of setpoints for a controller of a powertrain system. The controller may be parameterized as a function of setpoints to provide performance variables that are considered acceptable by a user or operator for current operating conditions of the engine or powertrain.
Honeywell International Inc.


 Fuel cell system and control method thereof patent thumbnailFuel cell system and control method thereof
A fuel cell system and method of controlling the fuel cell system are provided. The fuel cell system includes a fuel cell stack that is configured to receive fuel, and generate electric energy and a fuel supply valve that is configured to adjust pressure of fuel that is supplied to the fuel cell stack.
Hyundai Motor Company


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


 Industrial system with synthetically commutated variable displacement fluid working machine patent thumbnailIndustrial system with synthetically commutated variable displacement fluid working machine
An injection moulding system, water jet cutting machine or other industrial system has a synthetically controlled variable displacement fluid working machine which outputs hydraulic fluid to one or more fluid consumers, such as rams or hydraulic motors, through hydraulically stiff fluid retaining volumes and receives hydraulic fluid back from one or more fluid consumers through the same or other said hydraulically stiff fluid retaining volumes. Individual piston cylinder assemblies can be allocated to different outputs.
Artemis Intelligent Power Limited


 Steering control system patent thumbnailSteering 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


 Article with controllable wettability patent thumbnailArticle with controllable wettability
An article with controllable wettability includes a substrate and a layer of a composite material supported on the substrate. The layer has an exposed surface and the composite material includes particles that have controllable polarization embedded fully or partially in a matrix.
The University Of Connecticut


 Digitally controlled variable stiffness ski, snowboard, and boots system patent thumbnailDigitally controlled variable stiffness ski, snowboard, and boots system
A system, method and apparatus for a digitally controlled variable stiffness item of athletic equipment, such as a ski, snowboard, and boots. A core of thermally responsive metal alloy, such as nitinol is disposed within the athletic equipment.

Electric brake system

Provided is an electric brake system capable of compensating for a braking force by the whole electric brake system when functional degradation occurs in a part of the system. This system includes: a diagnosis module (24) that detects functional degradation in each of electric brake devices (db); a control calculation module (23) that estimates a controlled variable error that is a difference between an estimate of a braking force determined by a braking force estimation device (28) of an electric brake device (db) in which functional degradation is detected, and a braking force determined by the device (28) of an electric brake device (db) in which no functional degradation is detected; and a controlled variable compensating module (29) that, when the module (23) estimates the existence of the error, distributes a braking force corresponding to the error among the devices (db) other than the electric brake device in which the error exists so as to add the distributed braking force to the braking force target value of each electric brake device..
Ntn Corporation

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

Steering control device

Provided is a steering control device that more appropriately performs a limiting function for a controlled variable having an abnormal value even if a plurality of kinds of state quantities that are used for steering control include a state quantity that does not meet a required level of reliability. The range of variation in first assist controlled variable calculated by using steering torque, a steering torque differential value, and a steering velocity, namely state quantities for which the required level of reliability is ensured, is limited by final limiting values calculated based on first to third limit maps.
Jtekt Corporation

Variable area blade turbine and conditioning flow deflectors device and method

A mechanism to provide controlled variable area blades for fluid driven tangential turbines is disclosed, where the spindle axis is perpendicular to the fluid flow, applicable in vertical axis hydraulic turbines but extensive to horizontal axis or wind turbines, with the rotor completely immersed on the flow. Each blade varying its area at selected position of the rotor turning, increasing to maximize conversion of the kinetic energy of the fluid onto mechanical rotational power of the shaft, or reducing to minimize drag moving opposed to such current.
Corporacion Andina De Fomento

Adaptive drilling with piezo-electric feed oscillator

A positive feed tool may include a motor, a power supply operably coupled to the motor to power the motor, a gear head and a spindle. The gear head may be operably coupled to the motor to be operated responsive to powering of the motor.
Apex Brands, Inc.

Coordinated and proportional grade and slope control using gain matrixes

A multiple-input multiple-output (mimo) computer control system in a heavy equipment machine is in communication with multiple sensors in order to measure deviations from a path to be followed. Sensor corrections are applied to return the heavy equipment machine to a path to be followed or to restrain the machine from deviating from the path to be followed.
Gomaco Corporation

Apparatus for air-conditioning of environments in the marine field

An apparatus for air-conditioning of watercraft and the like including: an electronically controlled variable-r.p.m. Compressor, a main gas/water condenser (5), at least one environmental heat-exchanger (3) with an electronically controlled fan (14), at least one electronically controlled expansion valve (8), and at least one first electronic control unit (4) programmed for calculating continuously a temperature deviation detected (deltat=t_ad−t_a), and as a function of the temperature deviation regulating in combination, the r.p.m.
Tmd Marine Ltd

Axial engagement-controlled variable damper systems and methods

The present disclosure provides an axial engagement-controlled variable damper comprising a rotor assembly coupled to a rotor shaft and disposed about an axis of rotation and a stator, coaxially aligned with the rotor assembly. The axial engagement-controlled variable damper may further comprise a flux sleeve, axially movable relative to the rotor assembly between at least a first position and a second position.
Goodrich Corporation

Saturation-controlled variable damper systems and methods

The present disclosure provides a stator assembly comprising a high damping core, a low damping core coaxially aligned with the high damping core, a plurality of slots defined in at least one of the high damping core and the low damping core and extending between a first axial end face and a second axial end face of the at least one of the high damping core and the low damping core, and a control winding being integrally continuous and successively wound through the plurality of slots, such that the control winding enters the plurality of slots from at least one of the first axial end face and the second axial end face. In various embodiments, the control winding is configured to receive a current..
Goodrich Corporation

Axial engagement-controlled variable damper systems and methods

The present disclosure provides an axial engagement-controlled variable damper comprising a rotor assembly coupled to a rotor shaft and disposed about an axis of rotation and a stator, coaxially aligned with the rotor assembly. The axial engagement-controlled variable damper may further comprise a flux sleeve, axially movable relative to the rotor assembly between at least a first position and a second position.
Goodrich Corporation

Method for closing an electrical power supply circuit of an electric apparatus located in a chamber at a controlled variable pressure and related device

A method for closing an electrical power supply circuit of an electric apparatus located in a chamber at a controlled variable pressure. The method includes heating which provides energy to an element made of electrically conductive material located in the enclosure which is open to the chamber pressure; sublimation of the element made of electrically conductive material once the latter reaches a given temperature, if the pressure conditions in the chamber correspond to the conditions required for an operation of the electric apparatus under vacuum; ejection of vapour particles of the electrically conductive material which result from the sublimation; and formation of a deposit of electrically conductive material between the two electrically conductive terminals as a consequence of the ejection of the vapour particles..
Commissariat A L'energie Atomique Et Aux Energies Alternatives

Autonomous l1-adaptive controller with exact pole placement

Embodiments relate to a predictor device for controlling at least one actuating variable of a plant having at least one actuator, which can be controlled by the actuating variable, and a state with at least one controlled variable that can be detected by a sensor. The predictor has an adaptation device and an l1-adaptive control apparatus.
Airbus Defence And Space Gmbh

Digital communication interface circuit for line-pair with duty cycle imbalance compensation

A circuit (200, 300, 400, 600, 700, 800) interfacing a device (20, 30, 40, 60, 80) with a line-pair includes: a diode bridge (210) having polarity-independent input terminals coupled to the line-pair; a galvanic isolation device (230, 330) receiving a transmit signal and coupling the transmit signal to its output; a variable edge delay circuit (270, 370, 572, 574, 576) that delays rising/falling edges of the transmit signal more than falling/rising edges of the transmit signal; a voltage-controlled variable resistance element (260, 360, 460) connected across output terminals of the diode bridge; and a filter connected to a control terminal of the voltage-controlled variable resistance element. The filter includes decoupled charge and discharge paths to decouple the rise time of the transmit signal from the fall time of the transmit signal.
Philips Lighting Holding B.v.

Method for selecting operating points of a gas turbine

A method for selecting operating points of a gas turbine while taking into consideration at least one controlled variable, the operating points being defined at least by parameter combinations of manipulated variables, wherein the operating points are automatically selected on the basis of already known parameter combinations by using an interpolation method, the kriging interpolation method being used as the interpolation method.. .
Siemens Aktiengesellschaft

Balancing unit of a motor vehicle and controlling same

To reduce the complexity and the outlay involved in the development and implementation in a vehicle of systems and methods known from the prior art for operating a differential-free, clutch-controlled balancing unit having a first clutch and a second clutch, the invention provides for the first clutch and the second clutch to be controlled independently of the driving conditions, and always using the same variable controlled variable of the same value.. .
Gkn Driveline International

Layered approach to economic optimization and model-based control of paper machines and other systems

A method includes executing a control algorithm for an industrial process using a controller objective function, where the industrial process is associated with at least one controlled variable. The method also includes executing an optimization algorithm for the industrial process using an extended version of the controller objective function.
Honeywell Limited

Method for stabilizing gain of apd in medical laser receiver

The present invention provides a method for stabilizing the gain of an avalanche photodiode in a medical laser diode receiver. This method is characterized by comprising: (a) a step in which a high-voltage generation unit generates a high-voltage bias and applies same to an avalanche photodiode; (b) a step in which a temperature sensor senses the temperature of the avalanche photodiode; (c) a step in which a control unit controls a variable resistance value, which varies the voltage of the high-voltage bias, according to the value of the sensed temperature; (d) a step in which to detect if an output voltage signal is equivalent to the intensity of light received by the avalanche photodiode; and (e) a step in which a storage unit matches the sensed temperature value with the controlled variable resistance value and stores same.
Dankook University Cheonan Campus Industry Acadamic Cooperation

Method and real time model predictive control operator support in industrial process control and automation systems

A method includes obtaining measurements associated with a plurality of controlled variables (cvs) and a plurality of manipulated variables (mvs). The method also includes detecting an irregular operating condition of a cv or an mv.
Honeywell International Inc.

Monitoring system, wayside led signaling device, and monitoring a wayside led signaling device

A monitoring system for a wayside signaling device includes a light emitting diode (led) circuit with an led array, a led driver unit for driving the led array, and a mechanism for connecting and disconnecting the led circuit, and an optical light sensing circuit with a light-controlled variable resistor operably coupled to a resistor driver unit including relay functionality. The led circuit and the sensing circuit are arranged such that the light-controlled variable resistor monitors an output of the led array, and that the relay functionality triggers the mechanism to connect or disconnect the led circuit based on the output of the led array..
Siemens Industry, Inc.

Adaptive impedance matching apparatus, system and method with improved dynamic range

An embodiment of the present invention provides an apparatus, comprising' an rf matching network connected to at least one rf input port and at least one rf output port and 5 including one or more voltage or current controlled variable reactive elements; a voltage detector connected to the at least one rf output port via a variable voltage divider to determine the voltage at the at least one rf output port and provide voltage information to a controller that controls a bias driving circuit which provides voltage or current bias to the rf matching network; a variable voltage divider connected to the voltage detector and implemented using a 10 multi-pole rf switch to select one of a plurality of different resistance ratios to improve the dynamic range of the apparatus; and wherein the rf matching network is adapted to maximize rf power transferred from the at least one rf input port to the at least one rf output port by varying the voltage or current to the voltage or current controlled variable reactive elements to maximize the rf voltage at the at least one rf output port.. .
Blackberry Limited

Formulating steady-state targets using prioritized objective functions

Computer system and methods for optimally controlling the behavior of an industrial process, in accordance with plant operating goals, without requiring a complicated trial and error process. The system and methods enable configuring optimization preference and optimization priority for key manipulated variables (mvs) of the industrial process.
Aspen Technology, Inc.

Integrated coke plant automation and optimization using advanced control and optimization techniques

The present technology is generally directed to integrated control of coke ovens in a coke plant in order to optimize coking rate, product recovery, byproducts and/or unit lime consumption. Optimization objectives are achieved through controlling certain variables (called control variables) by manipulating available handles (called manipulated variables) subject to constraints and system disturbances that affect the controlled variables..
Suncoke Technology And Development Llc.

Multivariable control for power-latency management to support optimization of data centers or other systems

A method includes identifying demand for computing resources provided by multiple computing devices and identifying operating states or modes for the computing devices based on the demand using a multivariable controller. The multivariable controller is configured to determine how to alter multiple manipulated variables in order to create changes to multiple controlled variables.
Honeywell International Inc.

Arrangement and measuring and controlling the heating temperature in a semiconductor gas sensor

An arrangement is provided for controlling the heating temperature in a semiconductor gas sensor comprising a control loop, consisting of a heating resistor as automatic control system of a measurement device measuring a physical quantity representing the temperature of the heating resistor, and an actuating unit controlling a power supply of the heating resistor, and a method which utilizes the arrangement. The actuating unit includes a pulsating voltage source, having a first pulse duration, during which the heating resistor is connected to an operating voltage, and a second pulse duration, during which the heating resistor is separated from the operating voltage, whose first and/or second pulse duration can be controlled as a correcting variable, a constant current source applies a measuring current to the heating resistor during the second pulse duration and a measurement device measures the measurement voltage drop across the heating resistor, whose output is designed as a controlled variable feedback in the control loop..
Zentrum Mikroelektronik Dresden Ag

Phase controlled variable angle ultrasonic flow meter

An ultrasonic flowmeter includes a conduit for receiving a flow of a fluid and a flexible printed circuit board (fpc) including: a pair of ultrasonic transducers, wherein each transducer comprises a piezoelectric element divided into a plurality of segment electrodes and the fpc is bonded around the conduit; and a control circuit configured to sequentially activate the segment electrodes using a pulse train to cause at least one of the piezoelectric elements to emit a sonic signal. A delay time between activation of each successive segment electrode controls a phase velocity and an angle of emission of the corresponding sonic signal..

Method for conrolling at least one first drive unit of a vehicle as a function of operating states of a second drive unit of the vehicle during a switchover operation, and control device

A method for controlling at least one first drive unit of a vehicle as a function of operating states of a second drive unit of the vehicle during a switchover operation. The first drive unit is associated with a first control unit and the second drive unit s associated with a second control unit.
Continental Automotive Gmbh

Electric power steering system

An assist command value calculation circuit includes a torque shift control circuit, a phase lag compensation control circuit, a basic assist control circuit, and a phase lead compensation control circuit. A determination circuit determines whether a motor has been continuously under high load or not based on a current command value and a current limit value.
Jtekt Corporation

Controller and control method

A controller includes a control computation unit, a control computation output correction unit, and a final-control-element output upper-lower limit processing unit. The control computation unit calculates, for each control cycle, a control computation output value by performing a control computation using a controlled variable and a set point as input values.
Azbil Corporation

Controlled variable length and illumination pattern light diffusing optical fiber

An illuming device for use in medically illuminating tissue of interest within a patient generally includes a light diffusing optical fiber and an at least partially optically opaque sheath that is mounted over the fiber for selective, sliding movement along the length thereof. By sliding the sheath relative to the optical fiber after it has been inserted into a patient to illuminate a particular area of tissue, the length, size, and/or shape of the light that is exposed to the tissue can be selectively controlled.
Corning Incorporated

Method for determining a switching function for a sliding mode controller, and sliding mode controller

The disclosure relates to a method for determining a switching function for a sliding mode controller for controlling a controlled variable of a system, the switching function being selected as a function of a control deviation of the controlled variable and its time derivatives up to at least the second order and on the basis of initial control dynamics of the system, coefficients of the switching function being represented by means of poles of a closed control loop of the system, the poles each being selected as a function of the control deviation, and desired control dynamics of the system being set by shifting at least one first pole of the poles, and to such a sliding mode controller and to a use of such a controller.. .
Robert Bosch Gmbh

Dynamometer system

Provided is a dynamometer system dynamo control device that can accurately reproduce a no-load state. The dynamo control device includes controllers that are designed, using a h-infinity control or a μ-design method, such that, for a generalized plant that outputs observation output and a controlled variable from external input and from control input, the response from the input until the variable is shortened.
Meidensha Corporation

Skate blade holder tool with adjustable-size blade retention

A blade holder tool for inserting a loose skate blade into a sharpener unit for sharpening includes blade-engaging features that engage blade retention features of the skate blade, and a spacing component providing user-controlled variable spacing of the blade-engaging features to hold skate blades across a range of sizes. The tool may include an elongated tool body having a bottom portion configured to receive the skate blade, the tool body supporting the blade-engaging features and spacing component.
Velasa Sports, Inc.

Electric power steering system

Provided is an electric power steering system that achieves a more appropriate steering feel. An ecu of the electric power steering system calculates a basic assist component and a target pinion angle based on at least steering torque.
Jtekt Corporation

System and fast-capture multi-gain phase lock loop

A phase locked loop system has a voltage-controlled variable-load ring oscillator (vlco) that operates in a frequency band determined by a selected load on each stage of the ring oscillator. Each stage of the vlco has multiple load selection transistors, each coupled to a load capacitor.
Treehouse Design, Inc.

Substrate treatment device

The invention relates to a device and to a method for treating substrates, comprising a heating apparatus having a plurality of zone heating apparatuses and comprising a control apparatus, the reference variable of which is a susceptor temperature (ts) and the controlled variable of which is an actual temperature of the susceptor (7) measured by means of a temperature-measuring apparatus (10) and the manipulated variable of which is a value for the heating power (ptot) fed into the heating apparatus. A heating power distributor (12) is provided, which receives the manipulated variable (ptot) as an input variable and which provides a zone heating power (p1, p2, p3, p4, p5) for each of the zone heating apparatuses (1, 2, 3, 4, 5) as output variables, wherein the sum of the values of the zone heating powers (p1, p2, p3, p4, p5) corresponds to the manipulated variable (ptot) and the values of the zone heating powers (p1, p2, p3, p4, p5) have a specified fixed ratio among each other.
Aixtron Se

Refrigerating circuit for use in a motor vehicle

A refrigerating circuit for use in a motor vehicle has a refrigerant compressor (8) connected on the output side to a pressure line (4) and on the input side to a suction line (6). The refrigerating circuit has at least one condenser (10), at least one regulated expansion valve (14), at least one evaporator (16) and at least one inner heat exchanger (12).
Dr. Ing. H.c.f. Porsche Aktiengesellschaft

Apparatus for mitigation of adverse effects of geomagnetically induced currents on transformers

An apparatus for mitigating gic (geomagnetically induced current) effects through a fuzzy logic controlled variable resistor. Under gic conditions (or any unbalanced fault current condition), the gic or unbalanced fault current flows through the neutral of a power transformer.

Heating, ventilation, and air conditioning system controller

Heating, ventilation, and air conditioning (hvac) controllers are described herein. One method includes receiving an approximate relationship between each of a number of controlled and manipulated variables of an hvac system, designating one of the number of controlled variables as a primary controlled variable, determining operating parameters for each of the number of manipulated variables that maintain the primary controlled variable based, at least in part, on the approximate relationship between the primary controlled variable and each respective manipulated variable, and determining operating parameters for each of the number of manipulated variables that maintain each of the other controlled variables based, at least in part, on the approximate relationship between each respective other controlled variable and each respective manipulated variable and the determined operating parameters for each of the number of manipulated variables that maintain the primary controlled variable..
Honeywell International Inc.

Heating, ventilation, and air conditioning system controller

Heating, ventilation, and air conditioning (hvac) system controllers are described herein. One hvac controller includes a user interface configured to receive an indication of whether there is a positive or negative relationship between each of a number of controlled variables of an hvac system and each of a number of manipulated variables of the hvac system, a memory, and a processor configured to execute executable instructions stored in the memory to determine operating parameters for each of the number of manipulated variables, wherein the determined operating parameters are determined based, at least in part, on whether there is a positive or negative relationship between each respective controlled variable and each respective manipulated variable, and the determined operating parameters are not based on system dynamics and disturbances associated with the hvac system.
Honeywell International Inc.

Method for controlling a hydrostatic drive

A method is used to control a hydrostatic drive including a drive machine, a hydraulic pump coupled to the drive machine, and a hydraulic motor coupled to the hydraulic pump via a hydraulic working circuit. In the method, at least one of multiple manipulated variables of the hydrostatic drive is ascertained and set, in the course of a precontrol, from a specified setpoint value for at least one of the controlled variables, including a pressure in the hydraulic working circuit, a speed of the hydraulic pump, and an output variable of the hydrostatic drive.
Robert Bosch Gmbh

Electric power steering apparatus and controlling method

An electric power steering apparatus includes a control unit that calculates an assist controlled variable based on a plurality of types of state variables indicating steering statuses and controls a motor that serves as a generation source of an assist force applied to a steering mechanism of a vehicle based on the assist controlled variable. The control unit is configured to separately set limit values, which limit a change range of the assist controlled variable according to the respective state variables used to calculate the assist controlled variable, to the respective state variables, add up the limit values to generate ultimate limit value for the assist controlled variable, and perform limitation processing to limit the ultimate limit value for an assist controlled variable having a sign opposite to a sign of a steering torque that is one of the plurality of types of state variables..
Jtekt Corporation

Heat control device for an incubator for infants, incubator and the heat control of an incubator

An infant incubator heat control device (44) includes a temperature-detecting device (46) providing chamber interior and incubator heater temperature measured values (t1, t2). A first mode of operation has an interior temperature set value (r1), a temperature of the heater set value (r2) is calculated as a function of the interior temperature set value (r1) and of the chamber interior temperature measured value (t1).
Drägerwerk Ag & Co. Kgaa

Method and device for controlling power generators of a subgrid within an interconnected grid

Disclosed is a subnetwork controller (tnr) for a subnetwork (tn) within an interconnected grid (nv), which controller controls power generators (g), subnetworks or loads (l) of the subnetwork in accordance with sensor-captured internal measured variables (yi) and sensor-captured external measured variables as well as external controlled variables (vi) of the subnetwork (tn) in such a way that a dynamic behaviour of the subnetwork (tn) in relation to its adjacent subnetworks corresponds to a defined desired behaviour.. .
Siemens Aktiengesellschaft

Method for controlling an electromechanical actuator, and control device

A method and control system for controlling an electromechanical actuator (1, 2) of a brake system for motor vehicles, in which a measured actual value, of a controlled variable is intended to be set to a specified target value. A first actuator speed target value is determined on the basis of the target value and the actual value by a first controller (19,20), and wherein a manipulated variable for the electromechanical actuator (i, 2) is determined on the basis of the first actuator speed target value and a second actuator speed target value.
Continental Teves Ag & Co. Ohg

Power converter controller with analog controlled variable current circuit

A bleeder controller for controlling a magnitude of a variable current conducted by bleeder circuitry between input terminals of a device is disclosed. The magnitude of the variable current is controllable in response to a control signal.
Power Integrations, Inc.

Electric brake device

A brake device includes a control device which performs feedback control using a braking force of a linear motion mechanism as a controlled variable. The control device includes a computing unit for computing an operating quantity (voltage applied to an electric motor) for canceling out fluctuations in braking force, and a frequency detector for detecting the frequency of the operating quantity.
Ntn Corporation

Control of an internal combustion engine

An electronic control unit for an internal combustion engine configured to achieve demands concerning various kinds of functions of an internal combustion engine by coordinative control of a plurality of actuators concerning an operation of the internal combustion engine. The electronic control unit of the internal combustion engine is provided with a demand generation r level, a physical quantity mediation level, a controlled variable setting level, and a controlled variable mediation level.
Toyota Jidosha Kabushiki Kaisha

Electronic control unit of internal combustion engine and method thereof

An electronic control unit of the present invention includes: a demand generation level that generates and outputs a demand value concerning various kinds of functions; a physical quantity mediation level that aggregates and mediates the demand value for each predetermined physical quantity; and a controlled variable setting level that sets a controlled variable of the actuator based on the mediated demand value and transmits a signal in a single direction from a higher level to a lower level. A controlled variable mediation level that aggregates and mediates demand values expressed with controlled variables of the actuators set on the controlled variable setting level and a demand value transmitted from the demand generation level not through the physical quantity mediation level, together with demand values mediated by the physical quantity mediation level is provided below the controlled variable setting level..
Toyota Jidosha Kabushiki Kaisha

Variable speed drive system

An electronically controlled variable speed mechanical drive to be used in high power applications where using a direct drive motor is not feasible due to weight and size constraints. The variable speed drive components convert an externally driven fixed displacement pump into a variable displacement pump by electronically setting the pump speed to meet flow demands.

Flue having an adjustable flue gas flow unit

Known chimneys or chimney furnaces use flue gas flow units for heating buildings, said devices having displaceable or fixed obstacles for deflecting flue gas for generating flue gas turbulence. The invention relates to a device and method for transferring heat through a flue gas discharge pipe in which pivotal guide plates are inserted in the longitudinal direction of the pipe run, at which the flue gas flow is more or less deflected in a sinuous line as function of the pivot angle of the guide plates that can be adjusted during furnace operation.

Method and device for controlling at least one actuator control system of an aircraft, associated computer program product and aircraft

A method and device for controlling at least one actuator control system of an aircraft, an associated computer program product and aircraft are disclosed. In one aspect, the method includes determining a variation in thrust of the aircraft for controlling a variable relating to the aircraft relative to a set point, calculating a first control command signal to be sent to an engine control system in order to obtain the variation in thrust, and transmitting the first control command signal to the engine control system.
Thales

Electrically controlled variable force deployment airbag and inflation

The rate of combustion of an electrically operated propellant having self-sustaining threshold of at least 1,000 psi is controlled to produce chamber pressures that are sufficient to produce a desired pressure profile in the airbag to accommodate a range of human factors and crash conditions yet never exceeding the self-sustaining threshold. The combustion of the propellant is extinguished to control the total pressure impulse delivered to the airbag.
Raytheon Company

Multi-wafer reactor

A solution for manufacturing semiconductors is provided. An embodiment provides a chemical vapor deposition reactor, which includes a chemical vapor deposition chamber.
Sensor Electronic Technology, Inc.

Apparatus for controlling controlled variable of rotary machine to command value

In a control apparatus, an interference-reduction current calculator calculates, as an interference reduction current, a component of a current vector in a coordinate axis in a rotating coordinate system defined with respect to a rotor of the rotary machine. The current vector flows in the rotary machine, and the coordinate axis serves as an interference reduction coordinate axis in which the component of the current vector has reduced interference from change of the phase of the output voltage vector.
Denso Corporation

Controller and controlling a property of an object

An apparatus in a manufacturing process of a sheet including: a measurement arrangement, a controller and an actuator arrangement regulating at least one property of the sheet; the measurement arrangement being configured to provide the controller with controlled variable data about at least one property of the sheet; the controller having available a predetermined model based on temporally or spatially dependent disturbance; and the controller being configured to form a manipulated variable for the actuator arrangement on the basis of the model in response to the disturbance.. .
Valmet Automation Oy

Online control calculation for models containing near colinearity and uncertainty

A method, apparatus, and computer program product for increasing closed-loop stability in a mpc controller controlling a process where there are significant uncertainties in the model used by the controller. This invention focuses on the improvement of the robustness of the steady-state target calculation.
Aspen Technology, Inc.

Feedback control for reducing flaring process smoke and noise

A method of reducing plant emissions includes providing a mpc model for a flaring process including one-to-one models between controlled variables (cvs) including a smoke count and/or a flare count (cv1) and a noise level (cv2), and flow of assist gas as a manipulated variable (mv) and another process gas flow as a disturbance variable (dv). The mpc model receives sensed flare-related parameters during the flaring process including a measure of cv1 (cv1*) and cv2 (cv2*).

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

A synthetic controlled variable (xmix=f1(xc)+f2(x2, x1)) is obtained by obtaining a synthetic quantity (xc=αx2+βx2) using measurement results (x2, x1) of a first and a second measuring instruments and corresponding gains (or transfer function) (α, β) and synthesizing the synthetic quantity (xc) and one of the measurement results (x2, x1) of the first and the second measuring instruments, respectively, via a high pass filter (f1) and a low pass filter (f2). A feedback control system is structured that obtains a control input (u) using a synthetic controlled variable (xmix) and a desired value (r) and gives a plant the control input (u).

Control apparatus

A control apparatus controlling a controlled variable of a controlled object having a response lag characteristic using a combination of feedforward control method, response-specifying control method, and disturbance compensation method. An ecu of the apparatus calculates driver demand boost pressure for feedforward-controlling actual boost pressure as controlled variable, and calculates fb target pressure as value on which response lag characteristic of the actual value to the driver demand value is reflected.
Honda Motor Co., Ltd.

Driving support apparatus and driving support method

The invention is equipped with a travelable range detection device that detects a travelable range of a vehicle, a traveling control device that controls the vehicle such that the vehicle travels in the travelable range detected by the travelable range detection device, a vehicle control device that controls a behavior of the vehicle, and a controller that executes control to suppress a controlled variable of the traveling control device until a driver's follow-up operation for causing the vehicle to follow the travelable range by the vehicle control device is detected after start of control of the traveling control device.. .
Toyota Jidosha Kabushiki Kaisha

Digital communication interface circuit for line-pair with duty cycle imbalance compensation

A circuit (200, 300, 400, 600, 700, 800) interfacing a device (20, 30, 40, 60, 80) with a line-pair includes: a diode bridge (210) having polarity-independent input terminals coupled to the line-pair; a galvanic isolation device (230, 330) receiving a transmit signal and coupling the transmit signal to its output; a variable edge delay circuit (270, 370, 572, 574, 576) that delays rising/falling edges of the transmit signal more than falling/rising edges of the transmit signal; a voltage-controlled variable resistance element (260, 360, 460) connected across output terminals of the diode bridge; and a filter connected to a control terminal of the voltage-controlled variable resistance element. The filter includes decoupled charge and discharge paths to decouple the rise time of the transmit signal from the fall time of the transmit signal.
Koninklijke Philips N.v.

Electronic circuit and transmitting an ask signal

An electronic circuit for transmitting an ask signal, wherein the ask signal transmits data and energy between a first side having a first interface, and a second side having a second interface corresponding to the first interface. The first interface and the second interface are embodied for transmitting data and energy, and the first interface and the second interface are embodied as galvanically separated interfaces, comprising a converting apparatus for transforming data, especially a digital data signal, into an analog wanted signal; a carrier source for producing a carrier signal having a carrier frequency; a resonator circuit for merging the carrier signal with the wanted signal to form the ask signal with an amplitude.
Endress+hauser Conducta Gesellschaft Für Mess-und Regeltechnik Mbh + Co. Kg

Design control device and control device

A method of designing a control device that controls a controlled variable of a plant to a set point, the control device including a feedback control system for outputting a manipulated variable of the plant based on an output of a feedback controller and a disturbance estimation value, including a step of selecting one of a first order transfer function, a second order transfer function, a third order transfer function, a first order and time delay transfer function, a second order and time delay transfer function, and a third order and time delay transfer function as a transfer function of the nominal plant in accordance with characteristics of the plant; and a step of determining a transfer function of the feedback controller based on a gain and time constant of the nominal plant.. .
Fuji Electric Co., Ltd.

Method and system for monitoring controlled variable of multivariable predictive controller in an industrial plant

Embodiments of the present disclosure relates to a method and system for monitoring a controlled variable of a multi variable predictive controller in an industrial plant. The method comprises receiving predetermined tuning parameters and at least one gain value for the controlled variable from the data source.
Yokogawa Electric Corporation

Programmable antenna controlled impedance mosfet

Hop frequency radio technologies use dynamic modulation frequency control through a single antenna with non-ideal performance as antenna length is inversely proportional to modulation frequency. The programmable antenna controlled impedance mosfet is a digitally controlled variable length antenna that can be used to maximize power and bandwidth efficiencies in hop frequency applications..

Model identification using comfort neutral testing

A method includes pairing manipulated variables and controlled variables in an hvac system, perturbing a variable, controlling the hvac system to maintain controlled variables in a comfort range, determining a state of the system, and deriving a model from the state of the system.. .
Honeywell International Inc.

Constant power, helical transverse-axis wind turbine with automated variable pitch, variable radius and torque control

A transverse-axis power turbine, such as a vertical-axis wind turbine (vawt), which includes both computer-controlled variable pitch and variable radius aspects providing a means to optimize performance and match variable loads in real-time. When multiple units are established coaxially and fixed to a floating platform, a method is presented of producing near net zero torque from the turbines on the floating platform.
Sequestrapower, Ltd

Model-based predictive controller with steady-state model adaptation

A process controller-optimizer with a nonlinear steady-state model includes a model based predictive controller running on a computer to receive measurements of controlled variables and disturbance variables from a process to compute manipulated variables to control the process as a function of a dynamic process model, a filter to provide an estimated state of the process to the model based predictive controller, a steady-state real-time optimizer setting economically optimal steady-state targets to the model-based predictive controller, a model adaptation tool to modify the nonlinear steady state model to be consistent with process data and to modify a linear dynamic model to be consistent with the non linear steady state model in the steady-state, and a quasi steady state estimator to provide estimates of manipulated variables and controlled variables such that they are consistent with a steady state of the process for a given disturbance.. .
Honeywell International Inc.

Phase controlled variable angle ultrasonic flow meter

An ultrasonic transducer includes: a piezoelectric element divided into a plurality of segments; a pulse generator configured to generate a pulse signal that comprises pulses of a certain frequency; and a control circuit that sequentially activates the segments to cause the element to emit a sonic signal, where a controlled delay time between activation of each segment varies the emission angle of the sonic signal so as to compensate for angle changes caused by either changes in beam refraction or due to beam blowing caused by high flow velocity.. .

Temperature management system

A temperature management system includes: temperature detection units which individually detect temperatures of a plurality of electronic devices each changing an amount of heat generation depending on its operational state; a cooling device which cools the electronic devices; and a control unit which controls the cooling device depending on outputs from the temperature detection units. The control unit includes: an idle state determination unit which determines whether or not the electronic devices are in an idle state; a manipulated variable calculation unit which has an integrator and calculates a manipulated variable by using a difference between a target value and a controlled variable; and an accumulation value correction unit which corrects an accumulation value of the integrator with a predetermined value when the idle state determination unit determines that the electronic devices are in the idle state..
Fujitsu Limited

Ac/dc voltage transformer and operation therefor

A method for actuating an ac/dc voltage transformer is specified, which has a dc voltage output between which at least one series circuit of at least two capacitors and at least one series circuit of n switching elements is arranged, where n≧4. A connecting point of the switching elements is connected to a connection of an ac voltage input between n/2 switching elements.
Fronius International Gmbh

System and controlling power system

To control a power state of a power system properly according to a communication state. A system for controlling a power system includes a plurality of sensor devices configured to output measurement data; a first control apparatus configured to estimate a first power state of the power system by using the measurement data obtained by the plurality of sensor devices, calculate a first controlled variable according to the estimated first power state, and output the calculated first controlled variable; and at least a second control apparatus configured to execute a predetermined control operation according to either the first controlled variable calculated in the first control apparatus, or a second controlled apparatus calculated in the second control apparatus.
Hitachi, Ltd.

Imprinting apparatus and article manufacturing method

The imprint apparatus presses resin disposed on a substrate and a mold to each other to form a resin pattern on the substrate. The apparatus includes a driving device configured to move the mold and the substrate relatively to apply a pressing force between the mold and the resin, a measuring device configured to measure a position of at least one of the mold and the substrate, a detector configured to detect the pressing force, and a controller configured to control the driving device.
Canon Kabushiki Kaisha

Nonlinear parameter varying (npv) model identification method

The invention discloses an identification method of nonlinear parameter varying models (npv) and belongs to the industrial identification field. The invention carries out identification tests and model identification for an identified object with nonlinear parameter varying characteristics.
Zhejiang University

Control internal combustion engine

Invention suppresses deterioration of emission if there is air-fuel ratio imbalance among cylinders. Apparatus (100) controlling an engine including first and second air-fuel ratio sensors respectively disposed on upstream and downstream of catalyst, has: first determining device determining first f/b controlled variable according to deviation between output value and target value of first air-fuel ratio sensor; second determining device determining second f/b controlled variable according to deviation between output value and target value of second air-fuel ratio sensor; controlling device controlling fuel injection amount based on first and second f/b controlled variables; detecting device detecting air-fuel ratio imbalance among cylinders; and correcting device correcting second f/b controlled variable in direction in which there is hardly change of fuel injection amount to lean air-fuel ratio side, according to output deviation between first and second air-fuel ratio sensors, if air-fuel ratio imbalance is detected..
Toyota Jidosha Kabushiki Kaisha

Apparatus and closed-loop control of creped tissue paper structure

A method includes obtaining measurements associated with one or more controlled variables related to a structure of creped tissue paper during production of the creped tissue paper. The method also includes generating at least one control signal that adjusts one or more manipulated variables associated with the production of the creped tissue paper in order to alter the structure of the creped tissue paper.
Honeywell International Inc.

Digital communication interface circuit for line-pair with individually adjustable transition edges

An interface circuit interfaces a device with a line-pair. The interface circuit includes: a diode bridge having polarity-independent input terminals coupled to the line-pair, and first and second output terminals having a positive polarity and a negative polarity, respectively; a first galvanic isolation device for outputting a receive signal received on the line-pair via the diode bridge; a second galvanic isolation device receiving a transmit signal; a voltage-controlled variable resistance element connected across the positive and negative output terminals of the diode bridge; and first and second filters cascaded between the second galvanic isolation device and the voltage-controlled variable resistance element.
Koninklijke Philips N.v.

Control vehicle

An apparatus for controlling a vehicle provided with a steering apparatus is provided with: a first target controlled variable setting device for setting a first target controlled variable regarding the steering apparatus for track control which makes a track of the vehicle follow a target track; a controlling device for performing the track control by controlling the steering apparatus on the basis of the set first target controlled variable; a specifying device for specifying magnitude of a steering input and frequency in a period of performing the track control; and a determining device for determining whether or not the steering input is overriding on the basis of the specified magnitude and frequency.. .
Toyota Jidosha Kabushiki Kaisha

Regulating device for regulating a cooling circuit for temperature control of a battery system having more than one heating and/or cooling element

A regulating device for regulating a cooling circuit is described. The regulating device according to the disclosure includes a first regulating stage, wherein the first regulating stage is designed to determine, using one or more input variables, a cooling/heating power of the cooling circuit or a variable proportional thereto.
Samsung Sdi Co., Ltd.

Yaw moment control device for vehicle

A vehicle yaw moment control device is basically provided with a steering state detection sensor and a controller. The steering state detection sensor is configured to detect a steered angle speed and a steered angle acceleration of a vehicle.

Compact step-programmable optimization of low-noise amplifier signal-to-noise

In various embodiments, these new transformers are comprised of remotely-controlled variable capacitors and inductors which are connected in networks between antenna element outputs and their following lna inputs. These new step-programmable inductors and capacitors can be either electrically or pneumatically actuated.

Electric power steering system

There is provided an electric power steering system that is able to generate a more appropriate current command value. Limits of an assist controlled variable, formed of multiple upper limits and multiple lower limits are individually set for multiple signals used to compute the assist controlled variable.

Control device for a radiator fan, radiator fan arrangement and method

The present invention relates to a control device for a radiator fan, in particular for a radiator fan of a motor vehicle, having an external control device which is designed to generate a controlled variable for an electric motor of the radiator fan according to a first predefined setpoint value, and having an internal control device which is designed to control the motor current of the electric motor of the radiator fan according to a predefined first motor current maximum value if the controlled variable which is generated by the external control device assumes such a value that the motor current exceeds the predefined first motor current maximum value. The present invention also relates to a radiator fan arrangement and to a method for controlling a radiator fan..

Wireless energy transfer antennas and energy charging systems

A resonant wireless energy transfer system comprises first and second antennas made up of dual parallel wire helixes wherein the wires are terminated by short wires. Voltage controlled variable capacitors are connected into the antennas to permit progressive variation between folded dipole and normal dipole operating modes such that optimum energy transfer can be achieved between the antennas over a wide range of antenna separation distances.

System and controlling output flow of parallel connected blowers

A ventilation system includes first and second blowers connected to a plenum in parallel, with a first motor drive to control a speed of an electric motor of the first blower and a second motor drive to control a speed of an electric motor of the second blower. A controller associated with the first blower is programmed to receive a set point for a controlled variable that is controllable by operation of the first and second blowers, estimate a total air flow required from the first and second blowers to reach the controlled variable set point, calculate a blower speed ratio between a first blower speed and a second blower speed that provides the required total air flow at a minimum power consumption level, and generate commands to cause the first blower and the second blower to operate at speeds resulting in the calculated blower speed ratio..

Method for controlling a scanning microscope

The invention relates to a control method having at least two control loops for a scanning microscope provided with a microlever and an actuator suitable for energizing the microlever, in which a first loop maintains as a controlled variable the oscillation amplitude of the microlever and as a manipulated variable the amplitude of the electric signal supplied to the actuator, and a second loop uses as a controlled variable the amplitude of the aforementioned electric signal and as a manipulated variable the tip-sample distance. Said procedure makes it possible to ignore changes of sign in the tip-sample interaction..

Method for adjusting the power of a vacuum cleaner fan, control system for implementing the method, and vacuum cleaner having such a control system

A method of adjusting the power of a vacuum cleaner fan comprising a vacuum switch having a single switching point includes using the vacuum switch to create a signal indicative of a vacuum pressure created by the vacuum cleaner fan. The method also includes filtering the signal to obtain a resulting signal, the resulting signal being a measure of the vacuum pressure.

Monolithic clock generator and timing/frequency reference

A periodic signal generator includes a resonant lc tank circuit that generates a periodic reference signal at a first frequency at a differential output thereof. A temperature-responsive frequency compensation module is electrically coupled to the differential output of the resonant lc tank circuit.

Control internal combustion engine

The invention relates to a control apparatus for an internal combustion engine (10) including a control target (60v, 52) that controls controlled variable (pim, regr). The control apparatus according to the invention is capable of selectively performing single control that is control for controlling the controlled variable to a target value thereof (pimt, regrt) without considering a change in the controlled variable that acts as a disturbance on the control of the controlled variable, and composite control that is control for controlling the controlled variable to the target value thereof in consideration of the change in the controlled variable that acts as the disturbance on the control of the controlled variable.

Method for operating an internal combustion engine

A method for operating an internal combustion engine is described. A base controlled variable for influencing an actual value of an operating variable of the internal combustion engine is ascertained.

Power converter with dead-time control function

In a power converter, a feedback controller feedback controls a manipulated variable based on a first electrical parameter depending on input power and a feedback controlled variable determined for output power. A dead-time determiner determines a value of the dead time as a function of a boundary condition variable depending on at least one of the input power and the output power.

Power conversion apparatus

A power conversion apparatus includes a switch circuit which drives switching elements based on a control signal, a feedback section which performs feedback control, a signal output section which outputs the control signal based on a controlled variable of the feedback control, an output value detecting section which detects an output value outputted from the switch circuit, and an operation determining unit which has an operation stop determination section which determines whether to stop operation of the switching elements based on a rate of change of the output value, and an operation start determination section which determines whether to start operation of the switching elements based on the controlled variable.. .

Cooperative operating device and method

A cooperative operating device includes primary controlling units that are provided for individual primary control systems, and calculate operating variables and outputting them to the actuators of the corresponding primary control systems, a selector that combines operating variables by performing a weighting calculation on the operating variables calculated by the primary controlling units, and an operating variable adjustment controlling unit that is provided to correspond to a single secondary control system for controlling an equilibrium point that is a desirable operating variable output with the primary control in a steady-state, inputs a specific operating variable setting value that indicates the equilibrium point, and inputs, as a controlled variable input, the operating variable after combination, outputted from the selector, to calculate an adjustment operating variable and output it to the actuator of the secondary control system.. .

Low distortion mos attenuator

An attenuation circuit uses a voltage controlled variable resistance transistor as a signal attenuator for receivers operating in the zero hz to about 30 mhz range. The transistor functions in the linear region to linearize the transistor resistance characteristics used for signal attenuation.

Power converter with current feedback loop

In a power converter, a deviation calculator calculates, in each cycle, a deviation between a value of an input electrical parameter of a switch circuit and a target value selected by a selector in a previous cycle. The input electrical parameter depends on the input power to the switch circuit.

Power converter with current feedback loop

In a power converter, a driver drives a switching element using a manipulated variable therefor to convert input power into output power. A first measuring unit measures a value of a first electric parameter depending on the input power.

Removable rounded midsole structures and chambers with computer processor-controlled variable pressure

This invention relates generally to footwear such as a shoe, including an athletic shoe, with a shoe sole, including at least one removable midsole section formed by a midsole portion, wherein the removable midsole section is non-orthotic. The removable midsole section is inserted within the shoe upper, the sides of which hold it in position.

Electric power steering system

When a steering speed reaches a steering speed determination threshold, a steering speed gain is set to “0”. As a result, a final basic assist controlled variable becomes “0”, and application of an assist force to a steering system is stopped.

Continuous adjustable 3deeps filter spectacles for optimized 3deeps stereoscopic viewing and its control method and means

Significantly faster state transitioning time between the optimal optical density for viewing 2d movies as 3d movies through continuous adjustable 3deeps filter spectacles can be achieved by using multiple layers (multi-layer) of electronically controlled variable tint materials to fabricate the right and left lenses of the 3deeps spectacles. The use of multi-layered lenses may result in as much as a 50% decrease in transition time between states.

Closed-loop control circuit for an auxiliary power supply unit and power supply unit arrangement

A closed-loop control circuit for an auxiliary power supply unit includes a control loop for the closed-loop control of a voltage transformer of the auxiliary power supply unit via a controlled variable to produce a setpoint voltage, wherein the control loop includes an additional circuit that limits a change in the controlled variable in the event of provision of an external voltage of a main power supply unit at a first output for emitting voltage generated by the auxiliary power supply unit when the external voltage exceeds a setpoint voltage of the auxiliary power supply unit.. .

Switched-mode power supply unit, operation and use of a switched-mode power supply unit in a computer

A switched-mode power supply unit for a computer includes at least one switching element that switches a charging current to charge a storage element, at least one secondary output circuit that provides an output voltage (vout+), at least one controllable oscillator circuit that provides a switching clock, and at least one control circuit that determines a switch-off time for the at least one switching element, wherein, in operation of the switched-mode power supply unit, a mean oscillator clock of the oscillator circuit is controlled in dependence on a controlled variable (vcontrol) specifying the output voltage or power of the secondary output circuit such that the mean oscillator clock rises monotonously with the output power and a switch-on time for the at least one switching element is determined in dependence on the mean oscillator clock and a random deviation.. .

Adaptive impedance matching apparatus, system and method with improved dynamic range

An embodiment of the present invention provides an apparatus, comprising' an rf matching network connected to at least one rf input port and at least one rf output port and 5 including one or more voltage or current controlled variable reactive elements; a voltage detector connected to the at least one rf output port via a variable voltage divider to determine the voltage at the at least one rf output port and provide voltage information to a controller that controls a bias driving circuit which provides voltage or current bias to the rf matching network; a variable voltage divider connected to the voltage detector and implemented using a 10 multi-pole rf switch to select one of a plurality of different resistance ratios to improve the dynamic range of the apparatus; and wherein the rf matching network is adapted to maximize rf power transferred from the at least one rf input port to the at least one rf output port by varying the voltage or current to the voltage or current controlled variable reactive elements to maximize the rf voltage at the at least one rf output port.. .

Energy storage system and method thereof

An energy storage system (ess) and a method thereof are disclosed. The system includes a maximum power tracking control unit changing a controlled variable for maximum power point extraction in proportion to an hourly current and power slope of the power generating unit, setting the change amount of the controlled variable to be relatively large if the hourly current and power slope is out of a predetermined hourly current and power slope range, and setting the change amount of the controlled variable to be relatively small if the hourly current and power slope is within a predetermined hourly current and power slope range, and a maximum power extracting unit extracting and converting a maximum power from the power generating unit in response to a control of the maximum power tracking control unit..

Control device for an electrical vacuum pump and activating an electrical vacuum pump

A control device for an electrical vacuum pump includes: a determination unit designed for the purpose of detecting an operating parameter of the electrical vacuum pump, which is dependent on an operating duration of the electrical vacuum pump, and detecting a controlled variable for the electrical vacuum pump, a switching unit designed for the purpose of activating or deactivating the electrical vacuum pump as a function of a comparison of the controlled variable to at least one setpoint value, and a regulating unit designed for the purpose of changing the at least one setpoint value of the controlled variable as a function of the operating parameter.. .

Multi-wafer reactor

A solution for manufacturing semiconductors is provided. An embodiment provides a chemical vapor deposition reactor, which includes a chemical vapor deposition chamber.

Impedance source ranging apparatus and method

An impedance sourcing circuit for a measurement device configured to measure a device under test (dut) and method are disclosed. The impedance sourcing circuit includes a voltage/current source.

Control device

A control device for a process, in which a controlled variable can be influenced with the aid of a plurality of different regulating units, which in particular are based on different physical principles. A set point and the controlled variable are fed to both a first controller and a second controller.

System and generating a regulated boosted voltage using a controlled variable number of charge pump circuits

A system, method, and computer program product for generating a regulated boosted load voltage. A comparator may use reduced versions of a reference voltage, a supply voltage, and a fed-back output load voltage to determine whether the output load voltage requires adjustment.

Feed forward technique and application for injection pressure control

A control method is provided for using a feed forward technique. The method includes, but is not limited to using a setpoint value of a controlled variable to calculate a compensation of the closed loop static error, summing said contribution to the setpoint value, operating an estimation of the closed loop error to obtain a feed forward contribution..

Device for reliable filling level control in a quenching chamber that is arranged downstream of entrained-flow gasification and has inert-gas flushing of the pressure-recording measuring location

A device for the reliable measurement and control of the filling level in the quencher sump of a quenching chamber arranged downstream of the gasifying chamber is provided. The device has a differential-pressure transmitter.

Drainage system for cerebrospinal fluid

The object of providing a cerebrospinal fluid drainage system 1 which reacts precisely to changes in pressure in the cerebrospinal fluid, with ease of operation, is achieved by the present invention in that a pump 5 is used for draining the cerebrospinal fluid (liquor), wherein operating measured values supplied by sensors act as controlled variable for the operation of the pump. The pressure in the liquor line currently measured by a pressure sensor 10, the liquor pressure in the intracranial cavity being treated, measured intracorporeally by a pressure sensor, and/or the volume of liquor already pumped out, as operating measured value, can, for example, serve as the basis for operational control of the pump of the liquor drainage system.

Airship with a controlled variable profile

The invention relates to an airship comprising a flexible envelope having at least one adjustment region provided with two longitudinal adjustment elements mounted in opposition and mobile in relation to each other between a maximum distancing position and a minimum distancing position, the two longitudinal adjustment elements being connected to each other by a group comprising a plurality of cables crossing the inner space of the envelope, each of the cables cooperating with a plurality or tightening points provided along each longitudinal element. The cables are connected to at least one tightening module that can exert a tightening or loosening action on the cables and thereby bring the longitudinal adjustment elements closer together or move them further away..

Hand-held power tool, in particular battery-powered screwdriver

A hand-held power tool includes a drive device in a housing. The drive device is intended to drive a tool accommodated in a tool-accommodating region.

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

At a carriage that shows a resonance mode in opposite phase to a resonance mode shown by a plate table where an interferometer which measures a position (a first controlled variable) of a plate stage driven according to a control input is installed, another interferometer is installed which measures a position (the second controlled variable) of the plate stage. By using the interferometer and the another interferometer, it becomes possible to design a driving system robust in a high bandwidth that drives the plate stage..

Boost converter control apparatus

A boost converter control apparatus for controlling a motor drive system which is provided with a boost converter disposed between an electric power converter and a direct current power supply, the boost converter boosting a direct current voltage of the direct current power supply and supplying it to the electric power converter, is provided with: an operating device provided with a proportional element, an integral element and a derivative element, the derivative element being configured as a bandpass filter, the operating device calculating a pid controlled variable corresponding to an electric current command value of the boost converter for maintaining an output voltage of the boost converter at a command value of an inter-terminal voltage vh of a smoothing condenser; and a controlling device which is configured to control the output voltage of the boost converter on the basis of the calculated pid controlled variable.. .

Temperature controlled variable reflectivity coatings

Coatings configured to change between a relatively higher reflectivity state and a relatively lower reflectivity state depending at least partially upon temperature are generally disclosed. Some example coatings may include a selectively reflective layer including a plurality of microcapsules, which may include an ionic liquid and/or a surfactant within a shell.



Controlled Variable topics:
  • Controlled Variable
  • Variable Resistor
  • Internal Combustion Engine
  • Attenuation
  • Crystallin
  • Dependency
  • Reference Voltage
  • Cell Phone
  • Wireless Energy Transfer
  • Folded Dipole
  • Automatic Steering
  • Crankshaft Assembly
  • Connecting Rod
  • Shaft Assembly
  • Combustion


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