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JP7273751B2 |
To provide a braking method for a sensorless permanent magnet synchronous motor that can quickly stop after a motor or a pump is switched off.For braking in the case of an open control circuit, a permanent magnet synchronous motor is con...
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JP2023062896A |
To provide a motor controller with a fault detection function and a monitoring function of a dynamic brake circuit.A motor controller comprises: a motor 1; an inverter circuit 2 which drives the motor 1; first wiring L1 which connects th...
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JP7269097B2 |
A controller of a rotary axis includes: a storage unit that stores data of a braking distance for each rotation number of the rotary axis and provides a current braking distance S3 corresponding to a current rotation number of the rotary...
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JP7267832B2 |
To provide a working device configured to appropriately process (consume) regenerative power generated in an electric motor and to prevent the regenerative power from badly affecting an output of the working device.A working device (3) c...
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JP7260273B2 |
A system includes a converter operatively connected to an alternating current (AC) power source and a direct current (DC) bus, an inverter operatively connected to a motor and the DC bus, and a controller. The converter includes a first ...
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JP2023052706A |
To reduce a voltage of a DC link capacitor to a certain voltage level when a switch connecting a DC power source with an inverter has entered an open state.A motor driving device 10A comprises: an inverter 20 which includes a three-phase...
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JP7241904B2 |
A fan motor stopping apparatus includes a conversion circuit that converts alternating-current voltage supplied from an alternating-current power supply into direct-current voltage, a smoothing capacitor that is connected to a fan motor ...
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JP7238582B2 |
To provide a motor control device capable of diversifying the stopping motion of a control target motor when the motor is stopped.The motor control device includes: a communication unit 10 that receives a stop control signal from a host ...
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JP2023507276A |
Systems and methods for braking power tools using stamped brake resistors. The power tool includes a motor, a trigger configured to be operated, and a brake switch coupled to the motor. A brake resistor assembly is selectively coupled to...
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JP2023023753A |
To realize complete self-sustaining non-powered braking with a simple circuit configuration.A drive control device 1 for a single-phase motor includes a motor drive unit 10 that energizes a coil L of a motor 3, a braking control unit 30 ...
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JP2023505892A |
A method for controlling a brushless and sensorless DC electric motor (3) for automotive equipment, the electric motor (3) pulse width applied to the rotor and to the power inverter (1) of the electric motor (3) With the phases (A, B, C)...
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JP2023017511A |
To shorten a duration from transportation start of a sheet until stop.ASIC235 outputs a first set of control signals CS1-CS4 (refer to S601, S604 of figure 6). ASIC235 outputs a fourth set in the range from a distance D11 to a distance D...
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JP7215319B2 |
To provide a motor controller that can improve the accuracy of position in stopping the rotation of a rotating body driven by a motor.A motor controller comprises: a deviation calculation unit 15 that calculates, as a deviation amount, t...
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JP2023013127A |
To provide a technique capable of stabilizing the magnitude of a braking force applied to a motor by a motor braking circuit.A transport vehicle disclosed in the present specification may comprise: a driving wheel; a motor making the dri...
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JP2023013128A |
To provide a technique which can suppress a motor from driving in a situation where the motor should not drive even when malfunction of the motor control unit occurs.A dolly may comprise: drive wheels; motors which rotate the drive wheel...
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JP2023502948A |
One aspect of the invention is a module for controlling a rotating electrical machine for a motor vehicle, the control module comprising a calculation program, a rotor coil voltage value Vrot, a rotor coil resistance value Rrot, a rotor ...
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JP2023012149A |
To provide a positioning device capable of positioning control with high accuracy.A positioning device includes an actuator consisting of a DC motor, a reduction mechanism, and a single-phase rotation sensor that detects the amount of ro...
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JP2023012150A |
To provide a positioning device capable of positioning control with high accuracy.A positioning device includes an actuator consisting of a DC motor, a reduction mechanism, and a single-phase rotation sensor that detects the amount of ro...
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JP2023005297A |
To provide a loom and a control method thereof to suppress sudden drop of a heald frame.A loom according to an embodiment includes a heald frame, a driving unit that moves the heald frame up and down, a power supply circuit that supplies...
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JP2022554158A |
The present invention relates to the technical field of brakes, and provides an electromechanical brake, a control method for the electromechanical brake, and an electromechanical brake system. The electromechanical brake includes an ele...
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JP2022191934A |
To enable a short-circuit brake of an electric transport vehicle to be appropriately controlled.An electric transport vehicle in one aspect of the present disclosure comprises a motor and a control circuit. The motor comprises a pluralit...
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JP7195288B2 |
To perform regenerative control according to a travel state which is estimated to be intention of a user expressed on a brake operation.A motor drive control device for a power assisted vehicle comprise (A) a drive part for driving a mot...
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JP7195479B2 |
Provided are an articulated robot and a motor driving device that can start brake control more rapidly while suppressing recoil generated by the brake control when an abnormality related to driving of a motor occurs.　The articulated ro...
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JP7192643B2 |
To suppress a stop sound of a brushless motor.A controller 10 of a brushless motor turns on or off a plurality of switching elements 20 to energize stator coils 7 with a plurality of phases in a complementary energization system. A contr...
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JP2022551968A |
A modular motor drive for use in fitness equipment includes a switching circuit having a switch that selectively resets the switch to control the delivery of electrical energy to a motor of an exercise device according to a switching con...
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JP7185480B2 |
The present disclosure provides a power conversion apparatus converting a power from a DC power source, supplying the converted power to a rotary electric machine to drive the rotary electric machine. The power conversion apparatus accor...
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JP7184010B2 |
A motor control device includes an energization control unit and an excessive return determination unit. The energization control unit controls energization to a motor. The excessive return determination unit determines whether or not th...
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JP2022174814A |
To provide a robot control device that can prevent a driving part of a robot from freely falling when starting to drive a motor and stopping the driving thereof, without complicating a circuit configuration.A robot control device 100 com...
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JP2022174416A |
To provide a control device and a control method capable of further enhancing the stability of current control during braking of an electric motor.A control device is equipped with a current control unit and a braking control unit. The c...
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JP7171174B2 |
A vacuum pump and a motor controller that make a safe transition to a regeneration mode while avoiding an overvoltage are provided. A turbo molecular pump includes a power supply unit that converts alternating-current power to direct-cur...
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JP7156915B2 |
To realize a motor drive device having a dynamic brake circuit which can apply dynamic brake while securing safety without burdening a device and a motor drive system.A motor drive device 1 which drives a motor 3 on the basis of power su...
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JP7153697B2 |
To provide a highly reliable motor controller.A motor controller 1 includes: an upper arm 51 composed of a plurality of switching elements connected to a positive electrode of a DC power supply; a lower arm 52 composed of a plurality of ...
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JP2022144420A |
To suppress the excessive rotation of a rotator while suppressing power consumption in a control device of a generation system equipped with a mechanical brake and an electric brake.A generation system is equipped with a rotator, a gener...
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JP2022144421A |
To stop brake action at a timing when generation efficiency is not lowered, while suppressing an increase in costs.A generation system is equipped with a rotator, a generator, a brake circuit, a voltage sensor, and a control device. The ...
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JP2022141530A |
To consume a regenerative power early when an abnormality occurs in an AC machine, reduce the stopping time of the AC machine, and achieve energy saving.A power conversion device comprises: an inverter circuit that can convert a DC power...
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JP2022139925A |
To provide a technique to reduce a time lag from when a failure occurs until when all motors are stopped independent of a communication cycle between a motor controller and a host controller.A motor control system comprises: a host contr...
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JP7134913B2 |
To provide a work device capable of appropriately processing (consuming) regenerative power generated in an electric motor even when a variation in actual required power (actual load) of the electric motor is large.A work device connecte...
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JP7134914B2 |
To provide a work device that can appropriately process (consume) regenerative power generated in an electric motor even when the actual required power (actual load) of the electric motor fluctuates drastically.A work device that is conn...
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JP7134912B2 |
To provide a work device capable of appropriately processing (consuming) regenerative power generated in an electric motor even when a variation in actual required power (actual load) of the electric motor is large.A work device connecte...
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JP7126854B2 |
This power consumption device is made to consume power until a current flowing through a power consumption element (for example, a resistance element) reaches a prescribed upper limit. A monitor voltage conversion unit 20 converts a volt...
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JP7115339B2 |
A shift range control device switches a shift range by controlling drive of a motor. An angle calculation unit calculates a motor angle based on a signal from a rotation angle sensor that detects a rotation position of the motor. A drive...
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JP7103165B2 |
An electric vehicle without a propeller shaft including a rotating machine selectively functioning as an electric motor and a generator, configured to serve as a drive force source in the vehicle when the rotating machine functions as th...
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JP2022106126A |
To make it possible to manually turn a motor without exciting the motor even during an emergency stop.A motor drive device includes: multiphase wiring for supplying a multiphase current; a DB (dynamic brake) circuit for stopping a motor ...
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JP2022100924A |
To provide a motor control device capable of suppressing wear of a power transmission unit and generation of abnormal noise.A shift range control device 70 controls drive of a motor 50 in a shift-by-wire system 1 in which a play exists b...
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JP2022099561A |
To provide a vehicle control system and a control method of an electric motor, capable of starting three-phase short circuit control at a timing when the maximum value of a phase current immediately after the start of three-phase short c...
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JP7089449B2 |
To provide an inverter device for suppressing heat generation of a switching element and generating a braking torque in a motor in a one-shunt system.The inverter device includes: an inverter circuit 3; a current detecting element for ge...
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JP7089132B1 |
A printed circuit board on which two first relays and one second relay can be selectively mounted is shared by the connection of the terminals of the first relay and the connection of the terminals of the second relay. A through hole and...
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JP2022086120A |
To provide a brake control circuit that can eliminate a time lag from the start of power supply to the start of voltage application to a coil of a non-excitation actuated electromagnetic brake even though it is possible to reduce the pow...
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JP7061532B2 |
To provide an electric brake device which can improve accuracy for correcting thrust estimation.A brake mechanism 22 transmits thrust generated by driving an electric motor 22B to a piston 22E for moving a brake pad 22F. An ECU 24 for a ...
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JP2022523822A |
In the present specification, control circuits of electric motors, printing devices and methods of overvoltage protection for electric motors are disclosed. The control circuit of the electric motor includes a controller, a voltage conve...
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