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. 13, 2013
Filed:
Feb. 18, 2010
Kimio Nishino, Minami-alps, JP;
Toshiyuki Innami, Mito, JP;
Norikazu Matsuzaki, Minami-alps, JP;
Masayuki Kikawa, Kai, JP;
Takuya Obata, Minami-alps, JP;
Takayuki Ohno, Yokohama, JP;
Kimio Nishino, Minami-alps, JP;
Toshiyuki Innami, Mito, JP;
Norikazu Matsuzaki, Minami-alps, JP;
Masayuki Kikawa, Kai, JP;
Takuya Obata, Minami-alps, JP;
Takayuki Ohno, Yokohama, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A brake control system that enables accurate brake control is provided that precisely detects a master-cylinder pressure and includes a back-up function. The brake control system includes a master-cylinder operated by a brake operation of a driver; a first mechanism that regulates a pressure inside the master-cylinder according to the brake operation amount; a first control apparatus that controls operation of the first mechanism; a second mechanism that regulates communication of the pressure inside the master-cylinder to a wheel-cylinder; and a second control apparatus that controls operation of the second mechanism and operation of a pump apparatus that increases a pressure communicated to the wheel-cylinder. The first and second control apparatuses each have a power supply circuit and CPU. The brake control system further includes a first hydraulic pressure sensor that measures a pressure inside the master-cylinder and is electrically connected to the first control apparatus, and a second hydraulic pressure sensor that measures a pressure inside the master-cylinder and is electrically connected to the second control apparatus.