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. 26, 2008
Filed:
Oct. 31, 2005
Shoji Ogawa, Chiryu, JP;
Yoshiyuki Shibata, Toyota, JP;
Hiroshi Kuroyanagi, Nagoya, JP;
Shoji Asai, Nagoya, JP;
Shoji Ogawa, Chiryu, JP;
Yoshiyuki Shibata, Toyota, JP;
Hiroshi Kuroyanagi, Nagoya, JP;
Shoji Asai, Nagoya, JP;
JTEKT Corporation, Osaka, JP;
Abstract
In a steer-by-wire system, a first steering reaction force made-up value (Hc) is determined in dependence on a road reaction force (W), and a second steering reaction force made-up value (Hc) is determined in dependence on a steering position (X) of a steering handleor steerable wheels. A steering reaction force command value (H) is generated from both of the first steering reaction force made-up value (Hc) and the second steering reaction force made-up value (Hc) the weightings on which are adjusted by respective weighting gains (G, G), and the ratio of the weighting gains is properly altered in dependence on the state of a road surface. Thus, it can be realized to provide the steer-by-wire systemcapable of adjusting the steering reaction force to be sensitive or insensitive to the state of the road surface.