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. 24, 2016
Filed:
Mar. 27, 2013
Yusuke Kamiya, Okazaki, JP;
Akira Sakai, Toyota, JP;
Kiyoyuki Uchida, Konan, JP;
Masaki Maruyama, Nagoya, JP;
Yoshio Masuda, Kariya, JP;
Hiroaki Niino, Toyota, JP;
Takashi Kurokawa, Nagoya, JP;
Yusuke Kamiya, Okazaki, JP;
Akira Sakai, Toyota, JP;
Kiyoyuki Uchida, Konan, JP;
Masaki Maruyama, Nagoya, JP;
Yoshio Masuda, Kariya, JP;
Hiroaki Niino, Toyota, JP;
Takashi Kurokawa, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
ADVICS CO., LTD., Kariya, JP;
Abstract
When a brake switch is switched from OFF to ON, current is applied to a brake ECU, and a command to switch a master cylinder from a second state to a first state is issued after a lapse of preparation time, so that switching-time change suppression control is performed. A reservoir shutoff valve is closed, and duty control is performed on a communication control valve. The duty ratio is set to 1 when a switching-time control duration expires, and the communication control valve is placed in an open position, to establish the first state. Thus, since the communication control valve is duty-controlled during switching from the second state to the first state, change in the hydraulic pressure of an input chamber is suppressed, and change of the operating feeling is suppressed.