Title:
MOTOR CONTROL SYSTEM AND SAFETY MONITORING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/063352
Kind Code:
A1
Abstract:
An upper-level controller and a motor controller, which constitute a motor control system for driving a motor, each includes process for determining whether a motor operating state is normal or not according to the relationship of an operating command output by the upper-level controller and the detected motor position or the detected motor speed with motor rotation state estimation information that is estimated on the basis of a current and a voltage supplied to the motor.
Inventors:
OGAWA KENJI (JP)
Application Number:
PCT/JP2010/070141
Publication Date:
May 18, 2012
Filing Date:
November 11, 2010
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
OGAWA KENJI (JP)
OGAWA KENJI (JP)
International Classes:
H02P29/00
Foreign References:
| JPH10257668A | 1998-09-25 | |||
| JP2009538114A | 2009-10-29 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: