The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Jul. 16, 2013
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Takeshi Kuroda, Hino, JP;
Akio Toba, Hino, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-shi, JP;
Abstract
A motor driving system is disclosed having a control deviceA for controlling a synchronous motor, the control deviceA comprising a sensorless control algorithm devicethat includes an abnormality determining devicefor determining abnormality of the algorithm based on a magnetic pole position error estimated value of the motor. When the abnormality determining devicehas determined abnormality of the algorithm, the control deviceA controls a power converterusing a magnetic pole position detected value detected by a magnetic pole position detectorattached to the motor, in place of using a magnetic pole position estimated value. This motor driving system can guarantee reliability of the sensorless control algorithm devicewhile assuring safety. Safety of electric vehicles is enhanced by installing the motor driving system that has been guaranteed reliable.