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. 10, 1991
Filed:
Aug. 16, 1990
Takashi Yonekawa, Mishima, JP;
Shuuichi Buma, Toyota, JP;
Toshio Aburaya, Toyota, JP;
Kunihito Sato, Susono, JP;
Masaki Kawanishi, Toyota, JP;
Kouichi Kokubo, Nagoya, JP;
Takami Sugiyama, Hazu, JP;
Toshiaki Hamada, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Aisin Seiki Kabushiki Kaisha, Aichi, JP;
Abstract
In a fluid pressure type active suspension in a vehicle such as an automobile in which a fluid pressure type actuator supporting a vehicle body from a wheel so as to be able to vary a vehicle height of the vehicle body relative to the wheel in accordance with a fluid pressure supplied in its fluid chamber is operated by a pressure control means which controls the fluid pressure supplied in the fluid chamber of the actuator according to certain control parameters including at least a rate of change of the vehicle height or an acceleration of the vehicle body, the control means is adapted to modify an actual value of the rate of change of the vehicle height or the acceleration of the vehicle body for use in the control of the fluid pressure to be less than the actual value thereof when the rate of change of the vehicle height or the acceleration of the vehicle body is greater than a threshold value therefor.