Title:
MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, AND MOTOR UNIT
Document Type and Number:
WIPO Patent Application WO/2020/196744
Kind Code:
A1
Abstract:
A motor control device for controlling a brushless motor comprising a rotor and a three-phase armature coil, said motor control device comprising: a position detection unit, which detects the rotational position of the rotor; a control unit (54), which, in a first or second control mode, outputs a first or second drive signal to an inverter (52) at a current-supply time based on the rotational position of the rotor; and the inverter (52), which outputs a first or second current-supply signal to the three-phase armature coil when the first or second drive signal is input, wherein for any two of the three phases, a duty value when the duty of the applied voltages is the same is larger in the second control mode than in the first control mode.
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Inventors:
OHORI RYO (JP)
SHIODA NAOKI (JP)
HAYATA MASAKI (JP)
YATSUDA TAKASHI (JP)
KAWASAKI ATSUSHI (JP)
SHIODA NAOKI (JP)
HAYATA MASAKI (JP)
YATSUDA TAKASHI (JP)
KAWASAKI ATSUSHI (JP)
Application Number:
PCT/JP2020/013643
Publication Date:
October 01, 2020
Filing Date:
March 26, 2020
Export Citation:
Assignee:
MITSUBA CORP (JP)
International Classes:
H02P6/08; B60S1/08; H02P6/15
Domestic Patent References:
| WO2017159214A1 | 2017-09-21 |
Foreign References:
| JP2019004075A | 2019-01-10 | |||
| JP2003274623A | 2003-09-26 | |||
| JP2006223097A | 2006-08-24 | |||
| JP2015033278A | 2015-02-16 | |||
| JP2014195389A | 2014-10-09 |
Other References:
See also references of EP 3952101A4
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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