Title:
モータ制御装置及びそれを搭載した電動パワーステアリング装置
Document Type and Number:
Japanese Patent JP6421894
Kind Code:
B2
Abstract:
A motor control unit that is connected to a motor release switch which includes FETs and is disposed between an inverter and a motor, including: a control section to detect an assist state of the inverter, to turn-ON or turn-OFF a control of the inverter based on a detection result and to detect whether abnormality is existed or not; a motor rotational speed detecting section to detect a motor rotational speed; an energy calculating section to calculate an energy based on the motor rotational speed; a judging section to turn-OFF all of the FETs of the motor release switch when the energy is within an area of safety operation; and a state detecting section to detect whether abnormality is existed or not based on information from an abnormality detecting section that detects abnormality of the sensors and the inverter, wherein the control section turns-ON the control of the inverter when the state detecting section does not detect abnormality and turns-OFF the control of the inverter when the state detecting section detects abnormality.
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Inventors:
Mitsuyoshi Kogure
Shigeru Shimakawa
Kumagai gentleman
Ryoichi Suzuki
Shigeru Shimakawa
Kumagai gentleman
Ryoichi Suzuki
Application Number:
JP2018503392A
Publication Date:
November 21, 2018
Filing Date:
March 02, 2017
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
H02P29/02; B62D5/04; B62D6/00; H02P27/06; H02P29/68
Domestic Patent References:
| JP2011239489A | ||||
| JP2015523048A | ||||
| JP2008129669A |
Foreign References:
| WO2015190192A1 |
Attorney, Agent or Firm:
Yuzo Agata
Yoshiaki Kanno
Shinji Koga
Yoshiaki Kanno
Shinji Koga