Title:
MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/115446
Kind Code:
A1
Abstract:
Provided is a motor control system that can suppress production costs and suppress the occurrence of unexpected excessive torque, and continues system operation as much as possible even when the diagnosis results of a monitoring device are abnormal. A computation device (3) computes a voltage command value indicating the voltage to impose on a motor (2), and, on the basis of the voltage command value, generates a control signal (Spwm) that controls a drive device (5). When the diagnosis results (Rd) of the monitoring device (6) are normal, the computation device (3) computes the voltage command value in a manner so that the absolute value of the detection value of current flowing to the motor (2) is no greater than a second threshold, and when the diagnosis results (Rd) of the monitoring device (6) are abnormal, the computation device (3) computes the voltage command value in a manner so that the absolute value of the detection value of current flowing to the motor (2) is no greater than a third threshold that is smaller than the second threshold.
Inventors:
MYOEN KOHEI (JP)
KOMURO ATSUSHI (JP)
KOMURO ATSUSHI (JP)
Application Number:
PCT/JP2013/083812
Publication Date:
July 31, 2014
Filing Date:
December 18, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02P27/06
Foreign References:
| JP2012025374A | 2012-02-09 | |||
| JP2009207317A | 2009-09-10 | |||
| JP3204968B2 | 2001-09-04 | |||
| JP4182700B2 | 2008-11-19 | |||
| JP3204968B2 | 2001-09-04 |
Other References:
See also references of EP 2950444A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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