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:
Aug. 30, 2022
Filed:
Mar. 29, 2018
Nissin Kogyo Co., Ltd., Tomi, JP;
Veoneer Nissin Brake Systems Japan Co., Ltd., Yokohama, JP;
HITACHI ASTEMO, LTD., Tomi, JP;
HITACHI ASTEMO UEDA CO., LTD., Ueda, JP;
Abstract
Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake systemis equipped with a mutually connected master controllerand first and second sub-controllers, and an output cut-off control unit. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal. Upon determining that the master controller is not normal, the output cut-off control unit cuts off the output of the master controller, the determination being made on the basis of the self-determination result made by the master controller, the self-determination result and determination result regarding the master controller made by the first sub-controller, and the self-determination result and determination result regarding the master controller made by the second sub-controller.