Title:
MOTOR DRIVE CONTROL DEVICE AND MOTOR DRIVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/188960
Kind Code:
A1
Abstract:
Provided is a motor drive control device capable of driving a motor with high efficiency. A control unit (3) of the motor drive control device (1) outputs a control signal to a motor drive unit (2) to control the operation of an inverter circuit (21) for energizing a motor (7). The control unit (3) detects an actual rotational speed of the motor (7), detects a power supply voltage, and detects the magnitude of current flowing through the motor (7) to calculate the magnitude of a drive torque of the motor (7) on the basis of the detection results. The control unit (3) compares the actual rotational speed of the motor (7) with a reference rotational speed obtained on the basis of the magnitude of the calculated drive torque of the motor (7) to determine a lead angle value on the basis of the comparison result. The control unit (3) outputs the control signal on the basis of the determined lead angle value.
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Inventors:
KATO HIROYUKI (JP)
KITANO TAKAMICHI (JP)
KITANO TAKAMICHI (JP)
Application Number:
PCT/JP2020/000403
Publication Date:
September 24, 2020
Filing Date:
January 09, 2020
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
H02P6/15
Domestic Patent References:
| WO2015045669A1 | 2015-04-02 |
Foreign References:
| JP2008125246A | 2008-05-29 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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