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:
Feb. 25, 2014
Filed:
Jun. 07, 2011
Eiichi Hioka, Toyota, JP;
Shunsuke Habara, Higashihiroshima, JP;
Eiichi Hioka, Toyota, JP;
Shunsuke Habara, Higashihiroshima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
An electronic control unit () detects the position of an output shaft () by counting a position count value based on pulse signals generated from position sensors (S, S) in accordance with rotation of a motor (). The electronic control unit () determines that the motor () is in a predetermined rotational phase, based on the pulse signals generated from the position sensors (S, S). The electronic control unit () determines the number of revolutions that have been made by the motor () when the determination is made, based on the magnitude of current applied to the motor () when the determination is made, and updates the position count value based on a reference count value stored in association with the predetermined rotational phase.