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:
Jul. 04, 1989
Filed:
Sep. 17, 1987
Akira Ishii, Kanagawa, JP;
Katsumi Maehara, Kanagawa, JP;
Bernward Boening, Kanagawa, JP;
Yoshifumi Akakabe, Kanagawa, JP;
Nippon ABS, Ltd., , JP;
Abstract
A brake fluid pressure control apparatus in a skid control sytstem for a vehicle includes an electromagnetic change-over valve arranged in a conduct between a master and a wheel cylinder for the wheel. The electromagnetic change-over valve receives control signals of a control unit measuring the skid condition of the wheel to control the fluid pressure to the wheel cylinder. A hydraulic reservoir which, when the brake fluid pressure to the wheel cylinder is decreased with control of the electromagnetic change-over valve, reserves the brake fluid discharged through the electromagnetic change-over valve from the wheel cylinder and a fluid pressure pump supplies the brake fluid from the hydraulic reservoir into the wheel cylinder. A two-position electromagnetic change-over valve enables a change-over into a cut-off state or a communicating state. The valve is a conduit between the hydraulic reservoir and the fluid pressure pump.