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. 09, 2015
Filed:
Apr. 26, 2010
Takeshi Nozaki, Toyota, JP;
Takeshi Nozaki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
Provided is a motor control apparatus that can easily distinguish between a current sensor abnormality and a rotation-angle sensor abnormality, without making a current sensor a duplex system. An MGECU estimates a W-phase current on the basis of a V-phase current detected by a current sensor, and estimates the V-phase current on the basis of a detected W-phase current. An actual torque of a motor generator is estimated on the basis of the detected V-phase current and the estimated W-phase current, and the actual torque of the motor generator is also estimated on the basis of the detected W-phase current and the estimated V-phase current. Then, an evaluation is made whether an abnormality is an abnormality of the current sensor or an abnormality of a resolver, on the basis of the differences between the torque command value for the motor generator and both the estimated actual torques.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile