Minebea Mitsumi Inc.

Minebea Company, Limited

Takamichi Kitano

Masato Aoki

Hiroyuki Kaidu

Hiroyuki Kato

Hidetoshi Hijikata

Katsunori Yamamoto

Takahiro Suzuki

Tsunehisa Kobayashi

Kosuke Mizutani

Masaaki Nagai

Akira Muto

Tomotaka Sakuma

Yoshihisa Okabuchi

In a motor drive control device including a machine learning function, appropriate motor drive control in accordance with the usage environment of a motor is realized. A motor drive control deviceincludes: a measurement data generation unitthat generates measurement datarelating to operation of a motor; a training data generation unitthat attaches predetermined identification information indicating the operation state of the motorto the measurement dataand generates training data; a machine learning unitthat generates a learned modelfor determining the operation state of the motorby performing machine learning using the training data; and a monitor control unitthat monitors the operation state of the motorusing the learned model. In the motor drive control device, the training data generation unitstarts generation of the training datawhen the training data generation unitreceives a command ordering acquisition of the training datafrom a host device

Motor drive control device, motor drive control system, and motor drive control method

A motor drive control device capable of driving a motor at high efficiency is provided. A control unit () of a motor drive control device () outputs a control signal to a motor drive unit () to control operation of an inverter circuit () for energizing a motor (). The control unit () detects an actual rotational speed of the motor (), detects a power-supply voltage, detects a magnitude of current flowing in the motor (), and calculates a magnitude of driving torque of the motor () based on detection results. The control unit () compares a reference rotational speed obtained based on the calculated magnitude of the driving torque of the motor () and the actual rotational speed of the motor (), and determines an advance angle value based on a comparison result. The control unit () outputs the control signal based on the determined advance angle value.

Motor drive control device and motor drive control method

The present disclosure provides a motor control circuit enabled to change or adjust functions to be implemented to suppress an increase in cycle time during mass production. A motor control circuit according to an exemplary embodiment of the present disclosure is a motor control circuit to control a motor driver including a first non-volatile memory and a second non-volatile memory, and the first non-volatile memory stores a control algorithm and a first parameter group to be used by the control algorithm of the motor control circuit, and the second non-volatile memory is enabled to store a second parameter group to be used by the control algorithm.

Motor control circuit, motor drive control apparatus and control method for motor control circuit

An instrument control device includes a variable mechanism including a motor configured to adjust a state of an instrument, and a variable controller configured to variably control the motor with a command signal. The variable controller includes a receiver configured to receive a communication signal output from a remote controller and output a received signal in accordance with the communication signal, and a motor controller configured to increase the command signal stepwise starting from input of the received signal until a rotational speed of the motor reaches a predetermined rotational speed.

Instrument control device, variable device, lighting control device, and variable lighting device

A motor drive controlling apparatus includes a controller that generates a drive control signal in response to input of a speed command signal and a motor driver that generates a drive signal in response to input of the drive control signal and outputs the drive signal to a motor, and the controller repeatedly generates the drive control signal in a period during which the speed command signal is inputted and stops generating the drive control signal in a period during which the speed command signal is not inputted to repeat an operation period in which the motor performs rotational operation and a stop period in which the motor stops operating in a non-excited state.

Motor drive controlling apparatus, motor drive controlling method, and tube pump

A motor drive controlling apparatus includes: a controller that generates and outputs a drive control signal, in response to input of a speed command signal and a rotational direction signal; a motor driver that generates and outputs a drive signal to a motor, in response to the drive control signal; and an encoder that detects a rotational position of the motor to output an encoder signal. The controller includes: a measurement unit that detects, based on the encoder signal, a time at which a rotational state of the motor becomes, caused by an external factor, different from that commanded by the speed command and rotational direction signals, and measures a movement amount from the time; and a transmitting unit that transmits, to the motor driver, a signal for stopping an output of the drive signal, when the movement amount and a drive-control-signal outputting state satisfy a predetermined condition.

A motor drive controlling apparatus includes: a controller that outputs a drive control signal; a motor driver that generates and outputs a drive signal to a motor; and an encoder that detects a rotational position of the motor. The controller has a measurement unit that detects a time point when rotation of the motor is switched to a reverse direction of a target rotational direction by an external factor during input of the speed command signal, and measures a movement amount in the reverse direction from a rotational position of the motor at a time point of the switching, and a transmitting unit that transmits, to the motor driver, a switching signal that switches a conduction method from 180-degree conduction to 120-degree conduction in a case where the movement amount is a predetermined threshold or more.

A motor drive controller according to one aspect of the present disclosure including a monitoring unit monitoring a motor and detecting that the motor is in a driving state but is also in a predetermined abnormal state; and a incomplete lock determination unit executing a determination program at a point of time when the abnormal state is detected and causing the determination program to determine whether or not the motor is in an incomplete locked state in which a load not sufficient to stop the motor is applied to a rotating body rotated by driving of the motor.

Motor drive controller and motor drive control method

A motor drive controller including a monitoring unit monitoring whether or not a use state of a motor to be controlled satisfies a predetermined condition, and an output information switching unit switching information to be outputted to the outside from an information output path from motor driving information indicating a drive state of the motor to monitoring information indicating the use state if the use state satisfies the predetermined condition.

A data input device includes: an operation section including an electrostatic capacitance type touch sensor; and a control circuit section which determines if a data input operation is true or false and sends an output data corresponding to a sensed data only when the data input operation is determined as true. When one or more of the sensed data are entered into the control circuit section, a coordinate is identified which determines the data input operation as true based on invalidation determination region information previously prepared for each of coordinates corresponding to the sensed data, wherein while the sensed data for the coordinate indentified is entered, the data input operation, which is implemented to a coordinate other than the identified coordinate to determine the data input operation as true among a group aggregate of the coordinates corresponding to the sensed data within an invalidation determination region, is determined as false.

Data input device for electronic instrument and method of entering data

A data input device for an electronic device includes: a operation section having a plurality of capacitive touch sensors to detect a input operation; and a control circuit section that outputs output information corresponding to detected information of the input operation input from the operation section to the electronic device when it is determined that the input operation is performed, wherein the control circuit section is configured to configure arbitrarily a detection sensitivity of the touch sensor before determining whether the input operation is performed, wherein the control circuit section determines whether the input operation is performed in response to a magnitude of an input value of the detected information, based on the configured detection sensitivity, wherein, when it is determined that the input operation is performed, the control circuit section updates the detection sensitivity configured for the touch sensors based on the magnitude of the input value.

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Kakegawa, Japan

Takamichi Kitano