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.

Date of Patent:
Oct. 20, 2015

Filed:

Jan. 07, 2014
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Hiromitsu Nagata, Nagoya, JP;

Jun Yamada, Nagoya, JP;

Kazuhiro Yoshida, Tokoname, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 3/00 (2006.01); H02P 31/00 (2006.01); H02P 17/00 (2006.01); F16H 61/32 (2006.01); F16H 59/08 (2006.01); F16H 61/24 (2006.01); F16H 61/28 (2006.01);
U.S. Cl.
CPC ...
H02P 31/00 (2013.01); F16H 61/32 (2013.01); H02P 17/00 (2013.01); F16H 59/08 (2013.01); F16H 2061/247 (2013.01); F16H 2061/283 (2013.01); F16H 2061/326 (2013.01);
Abstract

A range switching device may switch a shift range despite resetting and restarting of a controller. When the controller is reset and restarted during a switching operation of the shift range and the shift range before or after being switched is a P range, the controller controls a motor to rotate the motor until a range switching mechanism abuts against a first limit position of a movable range of the range switching mechanism and learns a rotation position of the motor as a reference position of the motor. When the shift ranges before and after being switched are the ranges other that the P range, the controller controls the motor to rotate until the range switching mechanism abuts against a second limit position of the movable range and learns the rotation position of the motor as the reference position.


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