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:
Aug. 01, 2006
Filed:
Apr. 20, 2005
Yasuhiko Kobayashi, Anjo, JP;
Masami Ishikawa, Tokyo-to, JP;
Yasuhiko Kobayashi, Anjo, JP;
Masami Ishikawa, Tokyo-to, JP;
Aisin AW Co., Ltd, Anjo, JP;
Kabushiki Kaisha Equos Research, Tokyo, JP;
Abstract
An electric drive control device is provided with an electric machine having an asymmetrical salient pole, a current detecting portion, a phase converting device that converts the detected current into an axis current, and a current controlling device which generates a voltage command value based on the axis current and a current command value of the axis current. The current controlling device generates the voltage command value in response to the detected current and an offset angle of the center of a magnetic flux density distribution occurring at the salient pole, with respect to the center of an opening angle of the salient pole. In this case, the current controlling device generates a voltage command value corresponding to the detected current and the offset angle so the electrical characteristics are the same as when an electric machine having a symmetrical salient pole is used.