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. 07, 1990
Filed:
Nov. 30, 1988
Kazunori Mori, Ebina, JP;
Namio Irie, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A rear wheel steer angle control system for a vehicle includes a vehicle speed sensor, a steering wheel angle sensor and a controller for controlling a rear wheel steer angle .delta..sub.r (s) with respect to a front wheel steer angle .delta..sub.f (s) in accordance with .delta..sub.r (s)/.delta..sub.f (s)=(K+Tls)/(1+T2s), where K, T1 and T2 are control parameters each of which is a function of the vehicle speed, and includes a quantity representing a distance of a zero sideslip angle position from a center of gravity of the vehicle. The quantity representing the distance of the zero sideslip angle position at which the sideslip angle is to be zero, may be fixed at a constant value, or may be adjusted in accordance with any one or more of the vehicle speed, the steering wheel angle and the time rate of change of the steering wheel angle.