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This page is updated frequently with new Motor Control-related patent applications. Subscribe to the Motor Control RSS feed to automatically get the update: related Motor RSS feeds. RSS updates for this page: Motor Control RSS RSS


Variable link sensorless brushless direct current motor controller for space and hardened applications

Motor driving device

Date/App# patent app List of recent Motor Control-related patents
08/28/14
20140243301
 Chlorobis copper (i) complex compositions and methods of manufacture and use patent thumbnailnew patent Chlorobis copper (i) complex compositions and methods of manufacture and use
A method of manufacturing an anhydrous copper complex of formula c12h10cicun2o4 and methods of treating neur-muscular and other diseases, including but not limited to fibromyalgia, multiple sclerosis, muscular dystrophy, rheumatoid arthritis, pain, fatigue, sleeplessness, loss of fine motor control, speech loss, inflexibility, alzheimer's, dementia, amyotrophic lateral sclerosis, depression, lyme disease, lyme disease co-infection, gastroparesis (gp), myopathy, chronic inflammation and/or incontinence. The anhydrous copper complex preferably is administered in a pharmaceutical and/or dietary supplement composition of the invention..
08/28/14
20140239866
 Motor driving device patent thumbnailnew patent Motor driving device
A motor driving device, which controls a rotation number of a brushed motor by outputting a command signal to a motor controller placed in a current supply path, includes: a noise detecting unit including at least one of: a high voltage side noise detecting unit which detects high voltage side noise from brush noise included in the monitor voltage, based on whether a monitor voltage is larger than a first threshold voltage; and a low voltage side noise detecting unit which detects low voltage side noise from the brush noise included in the monitor voltage, based on whether the monitor voltage is smaller than a second threshold voltage; and a calculating unit which outputs the command signal to the motor controller to control the rotation number of the motor to reduce a occurrence number of the brush noise, based on at least one of the occurrence numbers.. .
08/28/14
20140239864
 Variable link sensorless brushless direct current motor controller for space and hardened applications patent thumbnailnew patent Variable link sensorless brushless direct current motor controller for space and hardened applications
A sensorless motor controller includes a variable link control, including a radiation-hardened field programmable gate array (fpga) and a back electromotive force (emf) decoder circuit. The back emf decoder infers the position of a rotor of the motor.
08/28/14
20140239860
 Electric motor feedforward control utilizing dynamic motor model patent thumbnailnew patent Electric motor feedforward control utilizing dynamic motor model
A motor control system comprising a motor configured to operate at a rotational velocity and a control module in communication with the motor is provided. The control module is configured to receive a torque command indicating a desired amount of torque to be generated by the motor, obtain a rotational velocity of the motor, receive a desired phase advance angle for driving the motor; and generate a voltage command indicating a voltage magnitude to be applied to the motor based on the rotational velocity of the motor, the motor torque command, and the desired phase advance angle by using a plurality of dynamic inverse motor model equations that (i) allow the desired phase advance angle to exceed an impedance angle of the motor and (ii) specify that the voltage magnitude is a function of a voltage magnitude of a previous voltage command..
08/21/14
20140232219
 Cooling arrangement for a motor assembly and method of cooling a motor assembly patent thumbnailCooling arrangement for a motor assembly and method of cooling a motor assembly
A cooling arrangement for a motor assembly includes a motor operably connected to a load. Also included is a motor controller disposed adjacent to, and fluidly coupled to, the motor, the motor controller disposed within a housing enclosing a cooling fluid for immersion of a plurality of motor controller components.
08/21/14
20140230463
 Method for controlling a compressor of a thermal storage heat pump system patent thumbnailMethod for controlling a compressor of a thermal storage heat pump system
A method of controlling a compressor of a thermal storage heat pump system of a vehicle is provided. The system may operate in one of a heating mode and a cooling mode, as determined by at least one system controller based on at least one parameter.
08/14/14
20140226057
 Motor control device and imaging apparatus patent thumbnailMotor control device and imaging apparatus
A motor control device includes a dc motor, a power source configured to supply power to each of the dc motor and a load unit, and a controller configured to control power supply to the dc motor and the load unit. When reducing the power to be supplied to the dc motor, the controller increases the power to be supplied to the load unit during a predetermined period of time including a timing at which the power to be supplied to the dc motor is reduced..
08/14/14
20140225970
 Tape drive and method of operation of a tape drive patent thumbnailTape drive and method of operation of a tape drive
A method of controlling tension in a tape, wherein the tape is transferable between a first spool and a second spool by a tape drive, the tape drive having a motor control system which includes two dc motors and a controller for controlling the operation of the motors, the tape drive also having two spool supports, each of which is suitable for supporting a spool of tape, and each of which is driven by a respective one of the motors, the method including only one tension setting step during a printing operation.. .
08/14/14
20140225551
 Control apparatus for ac motor patent thumbnailControl apparatus for ac motor
In a motor control apparatus for controlling an ac motor with an inverter, a current estimation value is calculated based on a current detection value of one phase of the motor and a rotation angle of the motor. A difference between a current command value related to driving of the ac motor and the current estimation value is calculated.
08/14/14
20140225545
 Systems and methods for controlling electric machines patent thumbnailSystems and methods for controlling electric machines
A motor controller is provided that includes an inverter configured to drive an electric motor, a rectifier configured to rectify an alternating current (ac) input current and to output the rectified ac input current to the inverter, and a controller coupled to the inverter. The controller is configured to improve a power factor of the motor controller by controlling the ac input current based on a direct current (dc) link voltage measurement..
08/14/14
20140225543
Motor control device
A motor control device includes a pwm signal generation unit configured to increase/decrease duty to both leading and lagging sides regarding a phase in which the duty becomes maximum among three-phase pwm signals. The unit is also configured to increase/decrease the duty to one of leading and lagging sides regarding a phase in which the duty becomes minimum.
08/14/14
20140225540
Control apparatus for ac motor
In a motor control apparatus for controlling an ac motor with an inverter, a current estimation value is calculated based on a current detection value of one phase of the motor and a rotation angle of the motor. A first voltage command is calculated based on the current estimation value and a current command value related to driving of the motor.
08/14/14
20140225536
Motor control system
A motor control system includes: a converter; two inverters; two alternating-current motors; and a control unit. The control unit is configured to control the system voltage by feedback of a current phase of a current vector of motor current of each of the motors on a d-q coordinate plane so that rectangular wave control of at least one of the first and second motors is performed in a state where the current phase is an optimal current phase, wherein the control unit selects, as a subject of the feedback, the current phase of one of the motors that is larger than the other motor in system voltage deviation obtained based on the current vector..
08/14/14
20140223898
Transaxle system for vehicle
Transaxle systems for a vehicle are disclosed where each of right and left transaxle units includes a hydraulic pump, a hydraulic motor and a casing incorporating the hydraulic pump and motor. Each hydraulic pump has a pump displacement control means operatively connected to a pump control arm pivoted on the casing, and each hydraulic motor has a motor displacement control means operatively connected to a motor control arm pivoted on the casing.
08/07/14
20140222266
Integrated electronic power control unit of environmentally-friendly vehicle
An integrated electronic power control unit of an environmentally-friendly vehicle that may reduce costs and enhance structure and space utilization by integrally configuring at least two or more electronic power control units (epcus) disposed within the environmentally-friendly vehicle. The integrated electronic power control unit (epcu) includes a plurality of epcus such as a motor control unit (mcu), a low voltage dc-dc converter (ldc), or a hybrid control unit (hcu), wherein at least one or more components of the plurality of epcus are integrated.
08/07/14
20140220837
Outboard motor control apparatus
A control apparatus for an outboard motor mounted on a boat and equipped with a transmission having at least forward first and second speed gears and a reverse gear. The apparatus functions as a rudder angle detector that detects a rudder angle, a slip ratio detector that detects a slip ratio, and a transmission controller.
08/07/14
20140220172
Concrete product molding machine vibration drive apparatus
A vibration drive assembly comprising two rotary servo motors and an electronic motor controller electrically coupled to the servo motors and configured to regulate the motors and operate them in synchronism with one another at a predetermined rotational speed. Two articulated drive trains are connectable between the servo motors and mold assembly vibrator shafts of a concrete product molding machine and are configured to mechanically transmit rotational motion from the servo motors to the vibrator shafts when the mold assembly is in an elevated vibration position with the vibrator shaft axes coaxially aligned with rotational servo motor axes.
08/07/14
20140219698
Motor control device, image forming apparatus, and non-transitory computer-readable medium
A motor control device includes a first control unit and a second control unit. The first control unit includes an issuing unit that issues a command that schedules a next operation of a motor according to an instruction from a controller.
08/07/14
20140218865
Motor control device
A motor controller comprising an inverter module including an inverter circuit coupled to a baseplate, wherein the baseplate includes cooling features; a cooling channel configured to receive a cooling fluid, wherein the cooling features extend into the cooling channel; a capacitor; and a laminated bus electrically coupling the capacitor to the inverter circuit and thermally coupling the capacitor to the cooling channel.. .
08/07/14
20140217951
Motor control device and motor control method
A motor control device includes a power converter, a velocity controller, and a certain-position stop controller. The power converter outputs a driving current on the basis of an input torque command.
08/07/14
20140217944
Permanent magnet motor with sinusoidal back-emf waveform and related motor controller for position sensorless drives
A system includes a permanent magnet motor having a rotor and a stator. The rotor and the stator have a configuration that causes the motor to generate a back-electromagnetic force (emf) waveform that is substantially sinusoidal.
08/07/14
20140217943
Determining a position of a motor using an on-chip component
An embodiment of a motor controller includes first and second supply nodes, a motor-coil node, an isolator, a motor driver, and a motor position signal generator. The isolator is coupled between the first and second supply nodes, and the motor driver is coupled to the second supply node and to the motor-coil node.
08/07/14
20140217941
Motor control system
A motor control system includes: a power supply; a converter; an inverter; an alternating-current motor; and a control unit that drives the motor in any one of sinusoidal pwm control, overmodulation control and rectangular wave control through operation control of the converter and the inverter. The control unit starts step-up operation of the converter when a current vector of motor current of the motor on a d-q coordinate plane becomes a current phase corresponding to motor torque, at which a system loss is equal between before and after starting the step-up operation, while the control unit supplies the direct-current voltage, supplied from the power supply, to the inverter without stepping up the direct-current voltage by the converter and performs the rectangular wave control of the motor in a state where the current phase is an optimal current phase..
08/07/14
20140217938
Motor controller with drive-signal conditioning
An embodiment of a motor controller includes a motor driver and a signal conditioner. The motor driver is operable to generate a motor-coil drive signal having a first component at a first frequency, and the signal conditioner is coupled to the motor driver and is operable to alter the first component.
08/07/14
20140217936
Drive device and drive method for brushless motor
The invention relates to a drive device and a drive method for a brushless motor. In a drive method in which a switching timing of energization patterns is detected by comparing a pulse induced voltage of a non-energized phase with a voltage threshold, when the pulse induced voltage does not reach the voltage threshold, the pulse induced voltage at an angle of switching the energization patterns is measured.
08/07/14
20140217935
Motor control device
A motor control device according to the invention includes: a mode setting section that sets one of a first mode in which a charge/discharge current of a secondary battery varies according to load fluctuation of a motor and a second mode in which the charge/discharge current of the secondary battery becomes constant for a predetermined time regardless of the load fluctuation of the motor; and a drive signal generating section that generates a drive signal for driving the motor on the basis of the mode that is set by the mode setting section, a torque command value, and a motor rotation speed.. .
08/07/14
20140217802
Prostate automobile and truck seat
The rider may select the desired position to allow for maximum rider comfort. The electronic pump would be actuated by a motor controlled by the electronic two-position switch and force air into the air chamber.
08/07/14
20140216830
Control system for starting electrically powered implements
A control system is provided for starting electrically powered implements on a vehicle such as a grass mowing machine with electrically powered cutting reels. The electric motors are started at intervals, rather than simultaneously.
08/07/14
20140216670
Methods for speed control of a movable partition
A movable partition system includes a movable partition including coupled panels and a lead post engaged with and movable along a track. A motor control system includes a motor coupled to the movable partition and a switching circuit coupled to the motor and for selectively coupling the motor to a positive power source and a negative power source responsive to one or more pwm signals.
07/31/14
20140214207
Horizontal articulated robot, and method of controlling the same
A robot includes a first horizontal arm coupled to a base, a second horizontal arm coupled to the base via the first horizontal arm, first and second motors adapted to rotate the respective arms, and first and second encoders adapted to calculate rotational angles and rotational velocities of the respective motors. A first motor control section subtracts first and second angular velocities based on the first and second encoders from a sensor angular velocity detected by an angular sensor, and controls the first motor so that a velocity measurement value obtained by adding a vibration velocity based on a vibration angular velocity as the subtraction result and a first rotational velocity becomes equal to a velocity command value..
07/31/14
20140213608
Enhancement of impaired motor and mental functions, using dextromethorphan and oxidase enzyme inhibitor
During clinical trials on patients suffering from neurological disorders, it has been observed that some patients obtain dramatic improvements in motor control and/or higher mental functioning, when they receive a combination of dextromethorphan and quinidine, at suitable dosages. Improved motor control has been exemplified to date by improved ability to swallow and/or speak, among victims of stroke, head injury, or als.
07/31/14
20140213607

During clinical trials on patients suffering from neurological disorders, it has been observed that some patients obtain dramatic improvements in motor control and/or higher mental functioning, when they receive a combination of dextromethorphan and quinidine, at suitable dosages. Improved motor control has been exemplified to date by improved ability to swallow and/or speak, among victims of stroke, head injury, or als.
07/31/14
20140213411
Driving device, electronic apparatus provided with the driving device, and driving device control method
A driving device includes a motor control unit and a clutch control unit. When the motor control unit stops a motor from an operating state, the clutch control unit controls the energization and de-energization of an exciting coil of each of electromagnetic clutches so as to switch one or more but not all of the electromagnetic clutches to a cutoff state while keeping the remaining electromagnetic clutches in a connected state..
07/31/14
20140211443
Adapter for arc resistant motor control center
The arc-resistant mcc is provided with either the expansion chamber or the plenum. Arc flashes create pressure.
07/31/14
20140210391
Sensorless motor control
An electric motor control system includes a power inverter and control circuitry configured to control the power inverter either according to a target voltage in a voltage-based control mode or according to a target current in a current-based control mode. A controller is operable to switch operation of the control circuitry between the voltage-based control mode and the current-based control mode.
07/31/14
20140210389
Motor control device including electric storage device and resistance discharge device
A motor control device includes a rectifier, an inverter connected to the rectifier via the dc link, a power failure detecting unit detecting power failure, a voltage detecting unit detecting a dc voltage at the dc link, an electric storage unit storing dc power, a charging unit that can make charging by boosting to a voltage higher than the dc voltage, a discharging unit discharging dc power, a resistance discharge device that performs resistance discharging of dc power at the dc link when the dc voltage after power failure is equal to or higher than a predetermined start level and that does not perform resistance discharging when the dc voltage is equal to or lower than a predetermined stop level, and a discharging operation determining unit operating the discharging unit when the dc voltage at the dc link after power failure is equal to or lower than a predetermined threshold.. .
07/31/14
20140210388
Motor control device
A motor control device stores correction wave information in a storing unit in advance, monitors a state amount (a torque command or motor speed) specifying a driving state for causing a pulsation in generated torque of a motor, selects, from a storing unit, correction wave information corresponding to positive or negative of the state amount, and generates a sine wave-like correction wave with respect to a periodical torque pulsation (a torque ripple or cogging torque) based on the selected correction wave information, and controls the motor based on a corrected torque command obtained by combining the torque command and the generated correction wave, instead of the torque command input from a host apparatus to control the motor.. .
07/31/14
20140210387
Optimized field oriented control strategies for permanent magnet synchronous motors
A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system..
07/31/14
20140210386
Stator flux magnitude and direction control strategies for permanent magnet synchronous motors
The present disclosure relates to a motor control circuit and related method that includes a transform component configured to receive current values associated with a motor being driven by the motor control circuit, and output polar coordinate values representing a magnitude component and a direction component of a current space vector. The motor control circuit further includes a control component configured to receive the magnitude component and the direction component of the current space vector, and generate motor control signals for driving the motor..
07/31/14
20140210383
Sensorless motor braking system
An electric motor control system includes a motor control circuit for generating a motor control signal and a braking mechanism for adjusting the motor control signal to augment motor losses when the motor control circuit is in a braking mode. The braking mechanism includes a difference component for receiving a first signal containing motor reference speed information, for receiving a second signal containing actual speed information, and for generating a third signal containing information indicating a difference between the reference speed and the actual speed.
07/31/14
20140210321
System, apparatus, and method for controlling a motor
Mechanisms are provided to control the operation of a motor. In particular, a variable frequency drive motor controller is described which resides within a motor housing.
07/31/14
20140208599
Work machine having operation rod
A work machine includes a motor and a sensor disposed in a front unit, a motor controller disposed in a rear unit, a motor power line and a sensor signal line disposed along an operation rod, and a pair of electric connectors. The motor power line includes first and second partial motor power lines disposed along the first and second partial rods respectively.
07/24/14
20140204431
Motor control device, and optical scanning device, image forming device and printed circuit board including the same
A cpu determines that a motor is undergoing a forward rotation when a time difference between a detection timing of a light beam deflected by a rotating polygonal mirror and an output timing of a detection signal from a magnetic detector element falls within a predetermined range, and that the motor is undergoing a reverse rotation when the time difference does not fall within the predetermined range. With this configuration, a detection circuit for detecting voltage induced in three phases is unnecessary, and therefore the cost can be reduced.
07/24/14
20140203755
Methods and systems for controlling an electric motor
An electric motor controller is configured to be coupled to an electric motor. The controller includes an inverter and a control unit coupled to the inverter.
07/24/14
20140203749
Motor controller having multi-functional pin and control method thereof
The present invention provides a motor controller having one or more multi-functional pins. The motor controller includes a plurality of pins but does not include a dedicated pin for transmitting a clock signal and a dedicated pin for transmitting a motor specification database setting signal, wherein the clock signal and the motor specification database setting signal are for setting motor specification data.
07/24/14
20140203748
Motor control device and motor control method
There is provided a motor control device for an actuator having a motor, including a measuring unit configured to measure a temperature of the actuator or a temperature corresponding to the temperature of the actuator, a determining unit configured to determine whether the temperature measured by the measuring unit is lower than a preset temperature, and a boost control unit configured to perform boost control at activation of the motor to increase drive power supplied to the motor if the determining unit determines that the temperature measured by the measuring unit is lower than the preset temperature. The boost control unit is configured to perform the boost control such that, only within a boost period after starting activation of the motor, drive power larger than that supplied to the motor during steady driving after the boost period is supplied to the motor..
07/24/14
20140203747
Motor control apparatus and method
A motor control apparatus and method are provided. The motor control apparatus may include a power supply device supplying power to a motor, a power control device selectively blocking current supplied to the motor depending on whether or not the current supplied from the power supply device to the motor is greater than a reference current value, a controller that controls an intensity of the current supplied from the power supply device to the motor, and a load torque detector that detects a load torque generated by the motor as the motor rotates.
07/24/14
20140203745
Motor control circuit
In a motor control circuit, a switching element such as an fet for controlling a motor current and a current detection element for detecting the motor current are connected in series. One terminal of a temperature detection element is electrically connected to an electrical connecting section between the fet and the current detection element, and the other terminal of the temperature detection element is electrically connected to a temperature detection circuit..
07/17/14
20140200767
Motor control device and electric power steering apparatus
A motor control apparatus includes a plurality of voltage detecting sections configured to each detect a terminal voltage of one of phases of a brushless motor, and a control section configured to control driving of the motor. The control section takes in, via separate signal lines, detection signals of the voltage detecting sections.
07/17/14
20140200732
Motor control system, motor control method, and motor control device
A host controller is incorporated with a plurality of different pieces of control software which are applicable to a plurality of destinations for a cooling blower to cool a main battery incorporated in a vehicle. The host controller transmits a destination-signal request pattern for requesting a destination signal pattern to specify the determinations for the cooling blower, to a motor control device by means of a pwm signal.
07/17/14
20140197773
Motor control device for compensating backlash
A motor control device includes a position command generating unit, a difference calculating unit for calculating a difference between a positional detection value of a movable unit and a positional detection value of a driven unit, a retaining unit for retaining, as an engaging difference, the difference when the movable unit is moved in a first or second direction to engage with the driven unit, in association with the first direction and the second direction, and a compensation amount calculating unit for calculating a backlash compensation amount based on the difference calculated by the difference calculating unit and the engaging difference retained by the retaining unit. It is determined whether or not the movable unit is engaged with the driven unit by comparing a movement amount of the driven unit with a threshold..
07/17/14
20140197772
Motor control device for switching pwm frequency to use the same
A motor control device includes an inverter, a power device temperature obtaining unit, a motor temperature obtaining unit, a power device temperature determination level storage unit, a motor temperature determination level storage unit, a pwm frequency storage unit that stores at least two pwm frequencies including a high pwm frequency a low pwm frequency, a power device temperature determining unit that determines whether or not a temperature of a power device is equal to or higher than a power device temperature determination level, a motor temperature determining unit that determines whether or not a temperature of a motor is equal to or higher than the motor temperature determination level, and a pwm frequency selecting unit that selects a pwm frequency to be given as a command to the inverter.. .
07/17/14
20140197771
Motor control apparatus and motor control method
A winding switching signal generator is configured to obtain information indicating a degree of field weakening from at least one of a current command calculator and a constant output controller, and to generate a winding switching signal for switching from a low speed rotation state to a high speed rotation state when the degree of the field weakening exceeds a predetermined condition in the low speed rotation state.. .
07/17/14
20140197767
Surface motor direct-drive sucker-rod screw pump device
A surface motor direct-drive sucker-rod screw pump device is driven by a vertical three-phase permanent magnet brush-less dc motor, and comprises a motor controller (6), a rectifying circuit, an inversion circuit, a cpu and a driving circuit. The motor controller (6) is used to adjust the voltage and frequency of the motor by the rectifying circuit, the inversion circuit, the cpu and the driving circuit.
07/17/14
20140197763
Electrically adjustable antenna control system and method
An electrically adjustable antenna control system includes a controller, an actuation mechanism controlled by the controller, and a feedback loop connected to both of the controller and actuation mechanism. Herein, the controller includes a control board and its imbedded program.
07/17/14
20140197236
Medical storage cabinet with rfid inventory
A medication and/or medical supplies storage cabinet of all-steel construction has an rfid transducer or reader with an antenna array (i.e., an antenna or series of antennas) carried on a vertical elevator at the rear of the cabinet's metal shelves and drawers. The metal shelves, sides and back of the cabinet define successive compartments in which rfid-tagged item are stored.
07/17/14
20140196508
System and method for safely powering an appliance user interface without external power
Systems and methods for safely powering an appliance user interface without external power are provided. One exemplary method includes receiving power generated by rotation of a rotor.
07/10/14
20140195083
Electromotive-vehicular motor control apparatus
This electromotive-vehicular motor control apparatus includes: a motor; a power drive unit; a torque control unit that controls an output torque of the motor; an electric current control unit; a number-of-revolutions detection unit; a target number-of-revolutions setting unit; a number-of-revolutions deviation calculation unit; and a removal unit that outputs a signal of a second number-of-revolutions deviation, in which the torque control unit controls the output torque based on the second number-of-revolutions deviation that has been output from the removal unit.. .
07/10/14
20140191702
Motor controlling device, motor controlling method and machinery system
A motor controlling device is provided. The device includes a position controller for generating a speed reference based on a positional reference and a motor position, a speed controller for generating a torque reference based on the speed reference and a motor speed, a motor drive for driving a motor based on the torque reference, the motor driving machinery to which an acceleration sensor is attached, an acceleration feedback signal generator for generating a feedback signal to the speed reference based on an acceleration detection signal that is a detection signal of the acceleration sensor, and a positional reference filter inputted with the positional reference and suppressible of low frequency vibration of the machinery..
07/10/14
20140191699
Motor control with voltage harmonic shaping
A control system for an electric motor (10) comprises a current sensing means (14) arranged to produce a current sensing output indicative of electric current in the motor, current control means (20) arranged to receive a current demand and to control voltages applied to the motor, and correction means (26) arranged to receive the current sensing output and the current demand, and use them to generate a correction signal. The current control means (20) is arranged to receive the correction signal and to use the correction signal to correct the voltages applied to the motor..
07/10/14
20140191073
Seat belt apparatus
A seat belt apparatus includes a reel, a motor, a clutch member, a belt reacher, a door opening/closing detection section, a wearing detection section and a motor control section. Once a change from an opened state to a closed state of a vehicle door is detected by the opening/closing detection section, the control section controls the motor so that the webbing is pulled out from the reel at a predetermined speed.
07/03/14
20140187963
Fire control system for rotational ivus
A patient interface module (pim) for an intra-vascular ultrasound (ivus) imaging system and a method for using it are provided. The pim may include a motor having position sensors; a motor controller circuit providing a signal to the motor; and a clock and timing circuit to provide a trigger signal to a pulse transmitter circuit and a reference clock signal to an analog to digital converter (adc) circuit, the trigger signal and the reference clock signal synchronized to a local oscillator; wherein the motor is configured to provide a relative phase value between a motor shaft and the local oscillator to a data processing circuit..
07/03/14
20140184116
Apparatus for motor control system and associated methods
A motor control apparatus to control a motor external to the motor control apparatus includes a microcontroller unit (mcu). The mcu includes mixed signal motor control circuitry adapted to perform back electromotive force (emf) motor control in a first mode of operation.
06/26/14
20140178085
Image forming apparatus
The image forming apparatus includes photosensitive drums, drive motors for driving the photosensitive drums, a motor control unit for controlling operations of the drive motors, and a printer control unit. The printer control unit stops rotations of the photosensitive drums at reference positions after a print job is finished.
06/26/14
20140176039
Motor control device and control method of stepping motor
There is provided a motor control device controlling an energizing state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a detecting unit configured to detect whether the stepping motor is out of step, and a reverse rotating unit configured, when the detecting unit detects that the stepping motor is out of step, to rotate the stepping motor in a second rotation direction reverse to a first rotation direction, which is a rotation direction of the stepping motor before detecting out-of-step, by a number of steps with which a stress received by the stepping motor is alleviated, before the stepping motor spontaneously rotates in the second direction..
06/26/14
20140176036
Motor control apparatus and motor control method
A motor control apparatus includes a state quantity detector configured to output a detection signal in correspondence with a state quantity of a motor, a vibration detection unit configured to detect a disturbance vibration component of the motor based on a torque instruction and the detection signal and output a vibrational component signal in correspondence with the detection result, a speed signal generator configured to generate a speed signal based on a result of subtracting the vibration component signal from the detection signal, and a speed controller configured to generate the torque instruction based on a deviation between a speed instruction and the speed signal.. .
06/26/14
20140176028
Motor control device and work machine using the same
The controller estimates torque output by the motor and controls the current supplied to the motor in such a manner that a torque estimate of the motor obtained by the estimation corresponds to the torque command value. A torque estimation calculator 120 estimates the torque output by the motor.
06/26/14
20140176025
Energy retrieving device
An energy retrieving device includes a first rectifier circuit, a direct current (dc) link circuit, a second rectifier circuit, an energy retrieving unit, a motor controller, and a micro control unit (mcu). The mcu includes an energy retrieving control module, to control the energy retrieving unit to work according to control of a processing module.
06/26/14
20140175956
Motor controller and brushless dc motor comprising the same
A motor controller, including: a control box including an inner wall; a circuit board; a dissipater; an igbt module; and an insulating piece. The circuit board is disposed inside the controller box.
06/26/14
20140174844
Electrical power steering apparatus
A motor control circuit includes a power relay, a converter division, a smoothing condenser, a control circuit and a motor drive circuit, and is connected to a battery as high voltage power and to an electrical motor. The battery is connected with a driving battery having the high voltage such as 288v etc.
06/26/14
20140174490
Tapped auxiliary winding dishwasher motor
A motor assembly comprises an electric motor and a motor controller. The motor includes a stator; a rotor; a main winding; a first auxiliary winding; a second auxiliary winding; a capacitor; a first tap point between the main winding and the first auxiliary winding; and a second tap point between the first and second auxiliary windings.


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Motor Control topics: Motor Control, Regenerative Braking, Control Unit, Synchronization, Regenerative, Generators, Persistence, Data Processor, Generates A Frequency, Microprocessor, Polynomial, State Machine, Screw Compressor, Instruction Set, Magnetic Pole Position

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