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:
Feb. 16, 1993
Filed:
Mar. 27, 1991
Kazunori Mori, Ebina, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An automotive vehicle rear wheel steering system steers the rear wheels in accordance with front wheel steering, with a steering angle which corresponds to the sum of proportional and differential components of the front wheel steering amount. A detecting unit detects a front wheel large steering condition in which the front wheels have been steered with an amount in excess of a preset value. A correction unit corrects at least one of the above-mentioned components in the front wheel large steering condition, in such direction as to improve transient turning response characteristic of the vehicle. An actuator unit steers the rear wheels by a steering angle based on at least one component which has been corrected in the large front wheel steering condition. The turning-round property and maneuverability of the vehicle can be prevented from degradation despite the rear wheel steering under the front wheel large steering condition.