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:
Sep. 03, 2008
Hiroshi Nakaoka, Okazaki, JP;
Yoshito Tanaka, Nishikamo-gun, JP;
Hiroshi Nakaoka, Okazaki, JP;
Yoshito Tanaka, Nishikamo-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A brake apparatus includes multiple wheel cylinders; multiple maintaining valves; a pressure-regulating control valve; and a control unit that controls the upstream pressure by switching a pressure-control mode between a pressure-regulating mode which is selected when a deviation of the upstream pressure from a target pressure is outside a setting range and in which the upstream pressure is brought to the target pressure using the pressure-regulating control valve and a pressure-maintaining mode that is selected when the deviation is within the setting range. The control unit opens the pressure-regulating control valve before the pressure-control mode is switched from the pressure-maintaining mode to the pressure-regulating mode.