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.:

US 6986555 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 17, 2006

Filed:

Apr. 14, 2003
Applicants:

Masamichi Imamura, Kanagawa, JP;

Gen Inoue, Kanagawa, JP;

Yukihiko Inoue, Kanagawa, JP;

Chiharu Nakazawa, Kawasaki, JP;

Inventors:

Masamichi Imamura, Kanagawa, JP;

Gen Inoue, Kanagawa, JP;

Yukihiko Inoue, Kanagawa, JP;

Chiharu Nakazawa, Kawasaki, JP;

Assignee:

Hitachi, Ltd., Tokyo-to, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vehicle brake control system includes an electric fluid pump that, upon energization thereof, pumps brake fluid from a reservoir to a brake circuit at a position upstream of a pressure control valve, an inlet circuit connecting the inlet opening of the pump to a master cylinder, an inside gate valve installed in the inlet circuit, and a control unit that controls the pressure control valve, the inlet gate valve and the electric fluid pump and carries out a predetermined brake control to adjust the hydraulic pressure of the wheel cylinder by operating the pressure control valve. The control unit is configured to carry out a flow back control after completion of the predetermined brake control. The flow back control is a control wherein the inside gate valve is kept open having the electric fluid pump kept de-energized.


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