Invention Grant
- Patent Title: Motor control device, electric power steering device using same, and vehicle
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Application No.: US15109858Application Date: 2015-03-10
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Publication No.: US09889880B2Publication Date: 2018-02-13
- Inventor: Kenji Mori
- Applicant: NSK Ltd.
- Applicant Address: JP Tokyo
- Assignee: NSK Ltd.
- Current Assignee: NSK Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2014-048009 20140311
- International Application: PCT/JP2015/001284 WO 20150310
- International Announcement: WO2015/136918 WO 20150917
- Main IPC: B62D5/04
- IPC: B62D5/04 ; H02P27/06 ; H02P25/22 ; B60L3/00 ; B60L3/12 ; H02H3/04 ; H02H7/08 ; H02H7/122 ; H02P29/032 ; H02P6/12 ; H02P6/08 ; H02P29/024

Abstract:
The motor control device includes plural motor current blocking units that, in blocking operation, individually block energization between plural motor driving circuits and multi-phase motor windings of a multi-phase electric motor and an abnormality detecting unit that detects a short-circuit failure of the motor current blocking units. The abnormality detecting unit causes one or more motor current blocking units of the plural motor current blocking units to perform a blocking operation during energization between the plural motor driving circuits and the multi-phase electric motor, and, during the blocking operation, detects a short-circuit failure of the motor current blocking units caused to perform the blocking operation based on current values of currents flowing to the plural motor driving circuits.
Public/Granted literature
- US20160325777A1 Motor Control Device, Electric Power Steering Device Using Same, and Vehicle Public/Granted day:2016-11-10
Information query
IPC分类: