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:
Nov. 08, 2016
Filed:
Feb. 12, 2014
Satoshi Ishida, Chiryu, JP;
Satoshi Ishida, Chiryu, JP;
ADVICS CO., LTD., Kariya-Shi, Aichi-Ken, JP;
Abstract
A fluid-pressure brake device for a vehicle includes a brake operation member, a master cylinder, wheel cylinders a fluid-pressure control actuator, a fluid-pressure control circuit, and an electric control unit. Moreover, in the fluid-pressure brake device for a vehicle, normally closed electromagnetic open/close valves are interposed on paths for connecting master system fluid-pressure circuits and a drive fluid chamber of the master cylinder with each other, the master system fluid-pressure circuits being configured to connect pressure chambers of the master cylinder and pressure chambers of the wheel cylinders—with each other. The fluid-pressure brake device for a vehicle is configured so that the electromagnetic open/close valves are opened when an action amount of the brake operation member is equal to or more than a set value. As a result, a size and a stroke of each of master pistons in the master cylinder can be reduced.