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Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/012680
Kind Code:
A1
Abstract:
Provided is a motor control device capable of reducing torque variation occurring in an overlap zone. By switching the energization of a coil corresponding to each phase of a multi-phase SR motor, the motor control device rotationally drives the SR motor. The motor control device is provided with: an energization timing output unit which, when switching a phase to be energized from one phase to another phase, provides an overlap zone for energizing both the one phase and the another phase; and a current control unit for gradually changing current to be flowed through at least either the one phase or the another phase in at least a part of the overlap zone.

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Inventors:
KOBAYASHI KOHJIRO (JP)
OKADA HIROAKI (JP)
Application Number:
PCT/JP2019/001473
Publication Date:
January 16, 2020
Filing Date:
January 18, 2019
Export Citation:
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Assignee:
MITSUBA CORP (JP)
International Classes:
H02P25/092; H02P25/098
Foreign References:
JP2017192174A2017-10-19
JP2003088157A2003-03-20
JP2017073945A2017-04-13
JP2010093889A2010-04-22
JPH099667A1997-01-10
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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