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:
Jul. 19, 2011
Filed:
Aug. 13, 2010
Norikazu Matsuzaki, Minamiarupusu, JP;
Toshiyuki Innami, Mito, JP;
Kimio Nishino, Minamiarupusu, JP;
Masayuki Kikawa, Kai, JP;
Norikazu Matsuzaki, Minamiarupusu, JP;
Toshiyuki Innami, Mito, JP;
Kimio Nishino, Minamiarupusu, JP;
Masayuki Kikawa, Kai, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-Shi, JP;
Abstract
In a brake controller, a slope climbing vehicle stop detecting means determines when the vehicle is stopped while climbing a slope, and a pedal release detecting means determines that the pedal is released. An assist control unit interpolates a decrement in brake fluid pressure in the master cylinder due to an input piston movement caused by a release of a brake pedal. An assist piston is controlled by an electric motor to restore and maintain the fluid pressure within the master cylinder.