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:
Jun. 20, 2017
Filed:
May. 30, 2013
Advics Co., Ltd., Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Yoshio Masuda, Kariya, JP;
Hiroaki Niino, Toyota, JP;
Akira Sakai, Toyota, JP;
Yasuji Mizutani, Toyota, JP;
Kiyoyuki Uchida, Konan, JP;
Masaaki Komazawa, Miyoshi, JP;
Kazutaka Noro, Kariya, JP;
Yusuke Kamiya, Okazaki, JP;
ADVICS CO., LTD., Kariya, Aichi-Pref., JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, Aichi-Ken, JP;
Abstract
The brake device for a vehicle generates two master pressures by controlling one single servo pressure to accurately control braking force. The pressure increasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon increasing the servo pressure and the second pressure increasing characteristic obtained from the servo pressure and the second master pressure. The pressure decreasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon decreasing the servo pressure and the second pressure decreasing characteristic obtained from the servo pressure and the second master pressure. Thus, the total braking force of the brake device is the sum of a braking force generated by the first master pressure and a braking force generated by the second master piston.