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. 25, 2013
Filed:
Oct. 29, 2010
Shizuo Manabe, Toyota, JP;
Shizuo Manabe, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A motor control apparatus includes a resolver and a R/D converter in which an electrical angle of 360° is set smaller than a mechanical angle of 360° and that outputs a two-phase encoder signal corresponding to the electrical angle; a two-phase encoder counter that counts the two-phase encoder signal and outputs a digital value corresponding to the electrical angle; a multiplication factor of angle detecting portion that detects a position of the mechanical angle to which an angle indicated by a signal output from the R/D converter corresponds, based on a change in a count value; and a motor controlling portion that corrects a current command value determined based on a torque command value, according to an output of the multiplication factor of angle detecting portion.