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:
Apr. 05, 2016
Filed:
Mar. 21, 2013
Advics Co., Ltd., Kariya-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Akihiko Miwa, Kariya, JP;
Yosuke Yamasoe, Kariya, JP;
Hiroshi Isono, Toyota, JP;
Yasuji Mizutani, Toyota, JP;
ADVICS CO., LTD., Aichi-Pref, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, Toyota-Shi, JP;
Abstract
A vehicle hydraulic brake system of the brake-by-wire type includes input piston and a master piston configured to be actuated under hydraulic pressure introduced into a second fluid chamber and mounted in the housing so as to be movable relative to each other through a partition wall and a first fluid chamber. The piston defines therein a communication passage which extends from a fourth fluid chamber to the first fluid chamber and in which a check valve is mounted. When the piston is advanced under hydraulic pressure introduced into the second fluid chamber, the volume of the fourth fluid chamber decreases, while the volume of the first fluid chamber increases. This allows brake fluid in the fourth fluid chamber to be quickly released into the first fluid chamber through the communication passage and through a pipe line in which an electromagnetic on-off valve are mounted.