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:
Jul. 26, 2022
Filed:
Apr. 08, 2021
Denso Corporation, Kariya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Hiromitsu Nagata, Kariya, JP;
Koji Sakaguchi, Kariya, JP;
Jun Yamada, Kariya, JP;
Masahiko Akiyama, Wako, JP;
Masashi Misawa, Wako, JP;
Kenshi Masuo, Wako, JP;
DENSO CORPORATION, Kariya, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
A shift range control device includes a signal receiver, an abnormality monitor, and a drive controller. The signal receiver acquires an encoder signal from an encoder capable of outputting three or more phase encoder signals having different phases. The abnormality monitor monitors an abnormality of the encoder. The drive controller controls drive of a motor by switching an energized phase of a motor winding so that a rotation position of the motor becomes a target rotation position according to a target shift range. When the abnormality of the encoder is detected, the driver controller drives the motor by faulty phase identification control to identify a faulty phase that is a phase in which an abnormality of the encoder signal occurs, and a normal phase in which the encoder signal is normal.