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:
Sep. 10, 1991
Filed:
Apr. 24, 1990
Applicant:
Inventor:
Koichi Komatsu, Kanagawa, JP;
Assignee:
Atsugi Unisia Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180140 ; 180142 ; 180143 ;
Abstract
A steering control system for a vehicle is provided. This system includes a front power cylinder which provides steering assistance for front wheels and a rear power cylinder which provides steering assistance for rear wheels. The system further includes a single hydraulic pump which provides a pressurized hydraulic fluid to the front and rear power cylinders and a flow dividing valve which controls a supply rate of the pressurized hydraulic fluid to the front and rear power cylinders based on vehicle speed to steer the front and rear wheels with a preselected steering angle relationship.