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:
Dec. 24, 1991
Filed:
Apr. 17, 1990
Applicant:
Inventor:
Kazunobu Kawabata, Kanagawa, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60G / ;
U.S. Cl.
CPC ...
280-612 ; 280707 ; 36442405 ;
Abstract
An active suspension system derives a target pressure to adjust fluid pressure in a working chamber of an active cylinder on the basis of a difference between an actual height level and a desired or target vehicular height level. Pressure supply for the working chamber is so controlled as to establish the target height. The system detects a vehicular parking state in which the vehicle speed is zero and a road wheel is locked and limits the variation range of the fluid pressure in the working chamber at the target pressure.