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JP2020517517A |
Disclosed is a method of controlling the operation of a motor driven brake boost assist system of a vehicle brake system during a loss of battery power to the brake boost assist system. In this method, a power loss event occurs in the br...
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JP6711843B2 |
A system for dissipating regenerated electric energy produced by an electric actuator of an aircraft, the dissipating system including: a resistor; two switching arms, each switching arm being connected in series with the resistor, the t...
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JP6711064B2 |
To provide a technique for enabling the suppression of a reduction in a disturbance suppression effect due to an influence of a communication delay between plural controllers even in the case of executing stoppage control using the respe...
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JP6711324B2 |
A shift range control device switches a shift range by controlling the driving of a motor. An angle calculation unit acquires a motor rotation angle signal outputted from a motor rotation angle sensor that detects the rotation position o...
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JP2020092584A |
To control a return speed of a spring return type electric actuator with fewer components.A power supply circuit 18 supplies a control power supply VC to a control circuit 16 in a power failure state, and the control circuit 16 operates ...
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JP6708157B2 |
A shift range control apparatus is applied to a shift range switching mechanism that includes a rotation member including multiple recesses, and an engagement member that positions the rotation member by engaging to the recesses. The shi...
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JP6709270B2 |
The present disclosure relates to security mechanisms for electric motors and associated systems. For example, the present technology includes a powertrain assembly having (1) a motor having multiple sets of coils; (2) a drive circuitry ...
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JP6708300B2 |
Provided is a rotary tool in which, when a switch is turned off to stop a tip tool, a fixture that fixes the tip tool is prevented from being loosened. In the rotary tool, the rotating tip tool is mounted on a spindle by the fixture, and...
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JP2020089094A |
To provide a motor drive device capable of accurately stopping a rotor at a target position in a shorter time by performing deceleration stop of the rotor without performing switching from feedback drive to open-loop drive.A motor drive ...
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JP6704948B2 |
A motor driving control apparatus according to an embodiment includes a motor driving unit that selectively energizes the three-phase coils of a motor; a motor control unit that switches an energizing phase of the coils in a predetermine...
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JP6698732B2 |
A motor control device for controlling a servomotor to axially move a movement target object includes: a speed detector for detecting the movement speed of the movement target object; an abnormality detector for detecting an abnormality ...
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JP6698729B2 |
A motor control device for controlling a servomotor, includes an inverter having multiple switching elements, a motor control unit configured to control switching operation of the multiple switching elements to thereby drive the servomot...
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JP6699607B2 |
A motor control device 1 has: a drive signal generation unit 14 that generates a drive signal in accordance with the rotational torque generated by a DC motor 2 and outputs the drive signal; a sensor interface unit 15 that receives a det...
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JP6693781B2 |
To provide a processing device that can reduce processing time as a whole without burning out a regenerative resistor for consuming power which is generated when decelerating a spindle.The processing device comprises: a motor for rotatin...
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JP6690576B2 |
A shift range control device switches a shift range by controlling the driving operation of a motor. When a difference between a target angle at which the motor is to be stopped and an actual angle becomes smaller than an angle determina...
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JP2020061851A |
To provide a motor drive device that avoids abnormal heat generation in a dynamic brake circuit.A motor drive device 1 comprises: a converter 11; an inverter 12; a DC link capacitor 13; a dynamic brake circuit 20 that includes a resistor...
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JP6683158B2 |
To provide a game machine which includes a motor controller capable of stopping a DC motor in rotating within a designated predetermined time.A motor controller 1 mounted on a game machine, includes: a driving signal generation part 14 t...
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JP6681301B2 |
A circuit arrangement is configured to supply an electromagnetic holding brake of an electric motor with an operating voltage for releasing the holding brake, and a voltage that is reduced relative to the operating voltage for holding th...
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JP2020058209A |
To provide a motor drive device in which abnormality of a dynamic brake circuit is detected.A motor drive device 1 comprises: a converter 11; an inverter 12; a DC link capacitor 13; a dynamic brake circuit 20 that has a resistor 21 and a...
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JP6677067B2 |
To reduce a rotation speed of a motor by prolonging a period of a dynamic brake due to an upper arm as further as possible in a motor drive device for executing the dynamic brake by using an inverter including a temperature protection fu...
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JP6674788B2 |
To provide a winch control method and controller, and a winch with a simple structure, which prevent a suspended load from falling down, the winch using an inverter to drive control a motor and using an electromagnetic brake.A controller...
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JP6668034B2 |
To make a gate pole at an ascending position descend by the pole's own weight at constant speed when abnormality such as outage and a failure occurs.A crossing gate 100 comprises: a brushless motor 30 that rotates a motor output shaft 33...
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JP6665636B2 |
There is provided a control system including: a motor, a moving apparatus, a detector, a driving circuit, and a controller. The controller executes: inputting, to the driving circuit, a first voltage command value up to a predetermined t...
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JP2020034013A |
To provide a shift range control device that can accurately stop a motor.A shift range control device 40 switches a shift range by controlling driving of a motor 10 comprising a motor winding 11, and comprises a driving circuit 41 and an...
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JP2020036524A |
To provide a motor drive circuit capable of decelerating rotation of an electric motor, e.g., an electric motor coupled with a fan, when power of the electric motor and the motor drive circuit for rotating the electric motor in normal op...
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JP6658356B2 |
To provide a motor compressor capable of suppressing the occurrence of a reverse re-rotation phenomenon while suppressing noise and vibration.A motor compressor 10 includes an electric motor 16 having a rotor 51, a housing 11 formed with...
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JP2020028145A |
To provide a motor drive device capable of performing control for accurately stopping a rotor at a target position by surely and promptly shifting from feedback drive to an open-loop drive.A motor drive device comprises a feedback (FB) d...
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JP6644145B2 |
Provided is an electrical drive for an industrial robot, wherein each driver circuit for the associated power switches of the first half-bridge is designed, in the case of a voltage-free or current-free state of the associated control in...
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JP6642479B2 |
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JP2020014363A |
To make it possible to reduce an amount of regenerative power generated when applying regenerative braking.The regenerative braking system includes: a generator for collecting kinetic energy of a rotating load to generate a braking force...
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JP6623987B2 |
A shift range switching control device for switching a shift range by controlling driving of a motor includes a feedback control section, a stationary phase energization control section, and a switching control section. The feedback cont...
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JP6626328B2 |
An electric taxiing system of an aircraft (1) includes: a wheel (5a, 7a) of an aircraft (1); a taxiing motor (5b, 7b) which is rotated together with the wheel (5a, 7a) in landing of the aircraft (1) to apply breaking force to the wheel (...
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JP6620380B1 |
To simplify a connection wiring configuration and reduce a cost. The motor control system 1 includes a motor 2C and a motor control device 13C that feeds and controls the drive power of the motor 2C based on the drive state amount of the...
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JP6622764B2 |
A motor driving control apparatus according to an embodiment includes: a motor driving unit that selectively energizes three-phase coils of a motor; a motor control unit that switches an energizing phase of the coils, the energizing phas...
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JP6622080B2 |
A controller (5) forms an image on a print medium by alternately repeating: a first operation of driving an inkjet head (31) to eject ink from the inkjet head (31) to the print medium while driving a main scanning driver (24) to move the...
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JP6602810B2 |
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JP2019190294A |
To provide a restarter which can suppress the beginning of the movement of a vehicle when a restart of an engine is interrupted.When a manual transmission is shifted to a traveling gear up until an engine is completely exploded after the...
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JP6596816B2 |
To notify regenerative control of a motor in advance.A motor 30 drives driving wheels of an electric vehicle by driving power supplied from a battery 20, and when a predetermined condition for regenerative travelling is satisfied generat...
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JP6581814B2 |
A drive control device includes: a driver including a circuit and configured to drive a motor; and a controller configured to control the driver. The controller is configured to: in a period other than a stop period during driving of the...
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JP2019162024A |
To provide an electric drive which reduces such a possibility that power electronic components, such as controllable semiconductor switches and diodes, of the electric drive may have high electric currents flowing therethrough and an ove...
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JP2019146478A |
To provide a method for supporting adjustment of a heat engine by a rotary electric machine.In the method for supporting adjustment of a heat engine (11) of an automobile by generation of resistance torque by a rotary electric machine (1...
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JP6562798B2 |
To prevent a high current from running through a switching element for driving and drive a motor even if the switching element for driving is switched to an ON state when a switching element for braking has a short circuit fault.The elec...
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JP6556183B2 |
A method is described for controlling an electric motor having a rotor. The method is carried out after a shutdown of the motor has been initiated. The method includes starting a timer in a motor controller, performing regenerative braki...
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JP6555167B2 |
An electric motor system includes an electric motor, an electric brake, a power line, and a driver. The electric brake is integrated with the electric motor and configured to generate braking force against the drive force. The driver is ...
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JP2019126903A |
To provide an automatic control device and an automatic control method, which can effectively adjust a rotation angle of an output shaft of a motor device corresponding to the magnitude of torque applied to the output shaft.An automatic ...
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JP2019126242A |
To facilitate detection of regenerative power generation, simplify regenerative power consumption control and suppress deterioration of a battery or prevent destruction of a circuit element constituting a DC power supply or a motor drive...
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JP6548101B2 |
A variable-speed speed-up mechanism includes: an electric device which is configured to generate a rotational driving force and a planetary gear transmission device which is configured to change the speed of the rotational driving force ...
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JP2019118963A |
To prevent breakage of an appliance such as an inverter circuit and so on.An electric tool 10 comprises a control part 50 for controlling rotational drive of a motor 31, and the control part 50 comprises a switch gear 29, a diode 54, an ...
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JP6544282B2 |
To provide a traveling motor control apparatus for a vehicle capable of switching from a regenerative braking mode to a plugging mode with respect to a traveling motor without a rotation sensor.A controller 37 is configured to be switcha...
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JP2019112975A |
To improve a problem with robustness and a problem with demagnetization.A fan motor system used for cooling coolant for a radiator includes: a fan motor; and a fan connected to the fan motor and rotating while interlocking with rotation ...
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