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. 08, 2014
Filed:
Sep. 01, 2009
Takuya Yamaguchi, Saitama, JP;
Yoshimitsu Akuta, Saitama, JP;
Takuya Yamaguchi, Saitama, JP;
Yoshimitsu Akuta, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An object of the present invention is to provide a steering system which does not cause the driver to feel the steering reactive force shock when the operation of the steering wheel is stopped, and which enables the driver to operate the steering wheel comfortably. In order to achieve the above object, there is provided a steering system in which a transfer ratio of a steering angle of a steering wheel to a turning angle of a turning wheel is changed by a variable transfer ratio mechanism, and an auxiliary power is generated during steering by an electric power steering, including: a transfer ratio variable motor for changing the transfer ratio, in which a steering angular velocity of the steering wheel is calculated, and when an absolute value of the steering angular velocity becomes equal to or less than a predetermined value, a current value flowing through the transfer ratio variable motor is set to zero.