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JP2021141710A |
To solve the problem in which: in a conventional motor abnormality detection device, a comparator is provided for every motor driver to detect an overcurrent; however, when a number of motors are present in a system, the number of the co...
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JP6935696B2 |
To provide an air conditioner capable of preventing a component from being destroyed by regenerative power of a fan motor caused by the outside wind generated by an outdoor unit during standby, while reducing standby power.In an outdoor ...
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JP6935719B2 |
To provide a ripple detector for a DC motor, capable of individually detecting the rotational states of a plurality of DC motors even if the plurality of DC motors are driven at the same time.A ripple detector for a DC motor comprises: a...
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JP6934743B2 |
To provide a motor control device, a travelling vehicle, a motor control method, and a motor control program which stop a motor, when the motor driven travelling vehicle comes into contact with an obstacle, in a manner that restricts a t...
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JP2021136824A |
To provide a motor controller, a motor control system, and a motor control method, capable of implementing stable driving by successively suppressing vibration caused by a speed reducer at the time of acceleration/deceleration.A motor co...
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JP2021136737A |
To solve such the problem of skid due to controlling only a motor in a motor drive vehicle.A drive control device includes a detector and a drive control unit. The detector detects skid of a drive wheel in a vehicle driven by a motor whi...
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JP2021136817A |
To provide a motor controller, a motor control system, and a motor control method, capable of implementing stable driving by suppressing vibration caused by backlash suppression control being invalidated by one motor entering a dead zone...
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JP6933227B2 |
A multi-motor system(103)includes a plurality of motor units(106A)and(106B).The motor unit(106A)includes: a motor(116A);a communication circuit(110A)to receive a command(12A)which is transmitted from outside; a control circuit(112A)to ge...
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JP2021126327A |
To provide a washing machine capable of decelerating a washing tub in a short time without generating unnecessary noise.A washing machine W of this invention comprises an outer tub 37, a washing tub 35 provided in the outer tub 37, a mot...
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JP6925527B2 |
A motor driving device includes an inverter to supply an alternating current, a switch unit that switches the number of at least one permanent magnet synchronous motor to which the alternating current is supplied from the inverter, a det...
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JP6925513B2 |
Prior to starting of first and second synchronous motors, direct-current excitation is performed to pull in rotors of the synchronous motors to a designated position. In the direct-current excitation, a difference between a value of a di...
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JP6921273B1 |
To limit a region of a carrier frequency for each inverter by paying attention to reduction of noise when operating a plurality of inverters controlled by PWM in parallel, the switching loss of an electric motor using a higher carrier fr...
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JP6922333B2 |
Setting related to a motor (400, 400X, 400Y, 400Z) is required to be simplified. An information processing device (200) for performing setting related to a motor (400, 400X, 400Y, 400Z) includes a generation unit (284) which generates a ...
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JP6922486B2 |
To provide a control device for a robot that, in a case where the robot collides with a worker, is able to decelerate the robot speedily and prevent the robot from colliding with the worker again.A control device 70 that controls a robot...
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JP6915993B2 |
According to an aspect of the invention, a motor operation control system configured to control an operation of a multi-axis mechanical apparatus including motors includes drive control units each of which is provided for one correspondi...
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JP2021112094A |
To provide a driving device and the like capable of reducing total ripple current in a device including a plurality of motors and a plurality of driving circuits connected to the motors respectively.A driving device 1 includes a pluralit...
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JP2021112062A |
To provide a controller capable of improving power performance of a vehicle.A controller controls two motors that apply a vehicle driving force to an output shaft. The controller comprises a motor control unit in which an operation mode ...
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JP2021106456A |
To provide a motor control device, and a control method of the motor control device, capable of correcting a torque of either one motor of a first motor or a second motor that are synchronized with each other.A motor control device is a ...
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JP2021100318A |
To provide a technology capable of continuing traveling of a vehicle even when a malfunction occurs in a driving motor in a driving apparatus having a torque vectoring function.A driving apparatus 10 according to an embodiment in the pre...
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JP6897545B2 |
Provided is a synchronization control device that can control a mechanical system with good track followability. A control unit for each shaft of the synchronization control device includes: a delay time compensator which delays a positi...
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JP6887529B2 |
Provided are an electric motor control device and a heat exchanger unit equipped with the electric motor control device. The electric motor control device has: a power conversion device that supplies three-phase voltage to a plurality of...
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JP2021090256A |
To enhance a braking brake of an electric motor system at low cost.A plurality of electromagnetic apparatuses (50, 60, 70, 80, 90) provided in an electric motor system (2) include at least one electric motor (60, 70, 90) for rotationally...
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JP2021087223A |
To provide a servo device capable of reducing vibration without using an expensive angle detector.A servo device of the invention controls a gimbal device 200 which comprises a first angle detector 13 driven by a first motor 15 and detec...
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JP2021083230A |
To provide a simple synchronous control method for eliminating synchronous control errors among a plurality of actuators without being limited by, for example, differences among characteristics and operated loads of the respective actuat...
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JP6877626B2 |
In a motor driving apparatus having an inverter which can drive n (n being an integer not smaller than 2) motors each having a permanent magnet in its rotor, and a connection switching device for switching the connection state of the n m...
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JP6878162B2 |
To prevent leakage current of a frequency which is an integral multiple of a rotational frequency of a rotary machine from occurring in the rotary machine with a simple configuration.A first power converter 4 drives a first rotary machin...
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JP6877592B2 |
A drive system (100) includes a current detection unit (4a) that detects a current flowing to a main synchronous motor (1a), and a current detection unit (4b) that detects a current flowing to a secondary synchronous motor (1b). The driv...
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JP2021077285A |
To provide a device driving apparatus and a device driving system capable of simplifying the configuration while preventing instability of the whole system.A device driving apparatus for driving a device includes a communication unit whi...
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JP2021078185A |
To provide a technology for accurately detecting the state of a load in a motor.A first motor and a second motor that are driven for conveyance are controlled. The second motor is disposed downstream of the first motor in the conveyance ...
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JP6872464B2 |
To provide a control system of a brake force adjustment device which does not cause an increase of a power consumption amount even if a large number of the brake force adjustment devices are installed.A control system of a brake force ad...
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JP6870314B2 |
To provide a robot which achieves double-safety, and a drive device, a control method for the drive device and a printer.A robot includes a first arm, a second arm rotatably arranged with respect to the first arm, a third arm, a fourth a...
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JP2021072715A |
To provide a motor drive circuit, an integrated circuit device, electronic equipment and a motor control method that enable quick response to a command from a user.A motor drive circuit comprises: a stepping motor drive circuit that cont...
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JP2021072373A |
To provide a motor drive circuit, an integrated circuit device, and an electronic apparatus that can suppress malfunctions caused by noise.A motor drive circuit includes a first motor drive circuit block in which a first motor drive circ...
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JP2021071703A |
To solve a problem in which: in a patent literature 1, two motors dedicated to drive a load are used; and therefore, a more inexpensive configuration that can drive the load is demanded.A second motor 403 that is a motor for adjusting a ...
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JP2021069555A |
To provide a program drive device that enables confirmation of a drive state on the basis of inputted drive information and achieves an improvement in drive precision.A program drive device 1 mainly comprises: an enclosure 2; a program m...
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JP2021067730A |
To solve the problem in which a second motor is connected to a first motor by a gear, and thereby a counter electromotive force is generated in a coil of the second motor, torque in a direction opposite to the direction of rotation of th...
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JP2021069144A |
To provide a torque control apparatus capable of controlling the torque of a plurality of motors individually while suppressing an increase in the sizes of driving devices.A torque control apparatus includes: a cooling circuit where a co...
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JP2021069250A |
To provide a drive control unit, a sheet processing apparatus, and a load starting method that can reduce a current flowing in a power supply at the start-up of a load.An image forming apparatus comprises: a first drive circuit 641 that ...
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JP6864611B2 |
A target value obtaining section obtains a target value for the difference in rotational motion between a first motor and a second motor and a target value for output torque. A torque command value calculating section calculates a torque...
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JP6867634B1 |
To provide a model for overcoming a singular point and an undesired crossing gyroscope term and reducing the mass of CMG based on a scissor pair control moment gyroscope attached to a biaxial gimbal base. An attitude control device of th...
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JP2021065064A |
To provide a motor drive system capable of setting an error to zero between the inverter frequency and the motor rotation speed without being affected by fluctuations in the motor constant when restarting free run.The motor drive system ...
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JP2021062703A |
To provide a steering device which is improved so that a required steering assist torque cannot be effectively generated depending on a driving condition of a vehicle.First and second electric power steering devices (44L, 44R, 72L, 72R) ...
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JP6861098B2 |
To provide a motor monitoring system and a motor monitoring method for allowing a user to recognize the possibility of occurrence of an abnormality in a motor.The motor monitoring system includes a motor multi-relay and a monitoring serv...
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JP6859844B2 |
A sheet conveying apparatus includes: a plurality of driving parts each connected to one end of corresponding one of a respective plurality of rotating shafts; a first torque adjuster connected to another end of each of the plurality of ...
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JP6854925B2 |
An electric vehicle control device includes a plurality of drive control systems that controls travelling of an electric vehicle. Each of the drive control systems includes an induction motor, an inverter that drives the induction motor,...
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JP6854430B2 |
To provide a highly reliable vehicle drive device, by early detection of latent failure in three-phase short circuit control of an inverter.A vehicle drive device 5A includes an inverter 10 for driving a permanent magnet motor M1. The in...
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JP6851504B2 |
A drive control system controls travel of an electric vehicle, the drive control system including a plurality of induction motors, one inverter that drives the plurality of induction motors, and a controller that controls the inverter. T...
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JP6851495B2 |
An electric motor control device controls driving of electric motors connected in parallel with each other and includes a power converter converting power from a power supply, and supply the converted power to each of the electric motors...
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JP6848239B2 |
A motor control system includes plural control circuits and plural motor circuits. Each motor circuit includes an inverter circuit and a coil. The plural motor circuits are controlled by any one of the control circuits or controlled by t...
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JP6846662B2 |
A turbocompressor apparatus includes a turbocompressor including a compressor motor, a lubrication pump including a pump motor, a converter that performs electric power conversion between a voltage of a power source and a direct-current ...
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