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. 30, 2016
Filed:
Dec. 21, 2011
Applicant:
Yasuaki Tsurumi, Nagoya, JP;
Inventor:
Yasuaki Tsurumi, Nagoya, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 1/16 (2006.01); B62D 5/00 (2006.01); B62D 5/04 (2006.01); B62D 15/00 (2006.01);
U.S. Cl.
CPC ...
B62D 1/166 (2013.01); B62D 5/008 (2013.01); B62D 5/0478 (2013.01); B62D 15/00 (2013.01);
Abstract
In a steering device, the transmission ratio variable mechanism changes a transmission ratio. The transmission ratio is a ratio of the turning angle of a wheel to the steering angle of a steering wheel. In the stationary-steering mode, the ECU sets a low transmission-ratio state where the transmission ratio is reduced compared with the transmission ratio in an ordinary mode when the steering wheel is increasingly steered while setting a zero-transmission-ratio state where coupling between the steering wheel and the wheel is released to set the transmission ratio to zero when the steering wheel is returned.