Title:
MOTOR CONTROL DEVICE AND FAILURE DETECTION METHOD FOR MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/187529
Kind Code:
A1
Abstract:
The present invention detects a closed loop circuit on the basis of a short failure between a switching element for motor control and a switching element for disconnection in a motor drive circuit. This motor control device is provided with a motor and a motor drive circuit (10a) that is connected to a power source device and the motor and that controls the output of the motor, the motor control device being provided with a processing unit for detecting a closed loop circuit formed by the motor and the motor drive circuit (10a) on the basis of a short failure of switching elements disposed in the motor drive circuit (10a).
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Inventors:
OKUBO MITSUNORI (JP)
Application Number:
PCT/JP2019/001548
Publication Date:
October 03, 2019
Filing Date:
January 18, 2019
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
H02P25/22; B62D5/04; B62D6/00; H02M7/48; H02P27/06; H02P29/028
Foreign References:
| JP2017204942A | 2017-11-16 | |||
| JP2014045576A | 2014-03-13 | |||
| JP2017093196A | 2017-05-25 | |||
| JP2011223707A | 2011-11-04 | |||
| JPS618043B2 | 1986-03-11 | |||
| JP2018065955A | 2018-04-26 | |||
| JP2018065956A | 2018-04-26 | |||
| JP2018065957A | 2018-04-26 |
Other References:
See also references of EP 3754839A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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