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. 29, 2008
Filed:
Nov. 04, 2004
Masahiro Kubota, Yokohama, JP;
Hiroshi Mouri, Yokohama, JP;
Tadashi Tamasho, Kanagawa, JP;
Ryota Shirato, Yokohama, JP;
Takayuki Sonoda, Kanagawa, JP;
Masahiro Kubota, Yokohama, JP;
Hiroshi Mouri, Yokohama, JP;
Tadashi Tamasho, Kanagawa, JP;
Ryota Shirato, Yokohama, JP;
Takayuki Sonoda, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
An electric power steering system for an automotive vehicle, including a steering torque detecting device which detects a steering torque of a steering shaft. An electric motor is provided to generate an assist torque for assisting a driver's steering effort required for steering the vehicle and a counter-assist torque for increasing the driver's steering effort. The assist torque and the counter-assist torque are applied to a steering mechanism. Additionally, a controller is provided to output a drive command to the electric motor in accordance with the detected steering torque. The drive command is for causing the electric motor to generate the counter-assist torque when the detected steering torque is a transitional torque.