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:
May. 20, 2014
Filed:
Oct. 20, 2011
Motohiro Higuma, Atsugi, JP;
Kotaro Koyama, Isehara, JP;
Motohiro Higuma, Atsugi, JP;
Kotaro Koyama, Isehara, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A brake control apparatus for a vehicle having a regenerative braking system, has first to fourth brake circuits, a pump, a gate-out valve, an inflow valve, an outflow valve, a reservoir, a fluid suction cylinder, a branch oil passage, a switch valve, a regulation valve, and a hydraulic pressure control unit. The hydraulic pressure control unit controls a brake fluid pressure by operating the gate-out valve, the inflow valve, the outflow valve, the switch valve and the pump in accordance with a regenerative operation state of the regenerative braking system. Also the hydraulic pressure control unit stores the brake fluid flowing out from a master cylinder in the fluid suction cylinder by operating the pump when the regenerative braking system works, and supplies the brake fluid stored in the fluid suction cylinder to a wheel cylinder when a regenerative braking amount of the regenerative braking system lowers.