Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/018874
Kind Code:
A1
Abstract:
Provided are a motor control device and a motor control system capable of reducing cost in addition to achieving redundancy. The motor control device comprises a first motor drive unit, a second motor drive unit, a first control unit, a second control unit, and a third control unit. The first control unit obtains the detection value of a first rotation sensor for detecting the rotational position of a brake motor and monitors the phase current of the second motor drive unit. The second control unit obtains the detection value of a second rotation sensor for detecting the rotational position of the brake motor and monitors the phase current of the first motor drive unit. The third control unit obtains the detection value of a third rotation sensor for detecting the rotational position of the brake motor and monitors the phase current of the first motor drive unit and the phase current of the second motor drive unit.
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Inventors:
FUJITA HARUHIKO (JP)
USUI TAKUYA (JP)
GOTO DAISUKE (JP)
USUI TAKUYA (JP)
GOTO DAISUKE (JP)
Application Number:
PCT/JP2023/024361
Publication Date:
January 25, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P25/22
Domestic Patent References:
| WO2022131023A1 | 2022-06-23 |
Foreign References:
| JP2011025872A | 2011-02-10 | |||
| JP2003048530A | 2003-02-18 | |||
| JP2017142679A | 2017-08-17 | |||
| JP2022041509A | 2022-03-11 | |||
| JP2020125997A | 2020-08-20 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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