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:
Mar. 06, 2012
Filed:
Dec. 20, 2007
Shingo Maeda, Kashiwara, JP;
Masami Naka, Yamatokoriyama, JP;
Ryouhei Hayama, Nabari, JP;
Kenji Higashi, Tenri, JP;
Shingo Maeda, Kashiwara, JP;
Masami Naka, Yamatokoriyama, JP;
Ryouhei Hayama, Nabari, JP;
Kenji Higashi, Tenri, JP;
JTEKT Corporation, Osaka, JP;
Abstract
A control section () of a vehicle steering system has a steer-by-wire mode, a power steering mode, and a transition mode. In the steer-by-wire mode, a steering actuator () is controlled for steering and a reaction force actuator () is controlled for reaction force. In the power steering mode, steering assistance control is performed with either of the steering actuator () and the reaction force actuator () caused to function as an assistance unit. In the transition mode, in a transition period from either of the steer-by-wire mode and the power steering mode to the other, the reaction force actuator () is controlled for reaction force.