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. 12, 2008
Filed:
Mar. 24, 2004
Akihito Kusano, Kariya, JP;
Satoshi Ishida, Kariya, JP;
Akihito Kusano, Kariya, JP;
Satoshi Ishida, Kariya, JP;
Advics Co., Ltd., Kariya, Aichi, JP;
Abstract
A hydraulic brake device includes a hydraulic pressure supply passage for reducing the output hydraulic pressure by a first proportional solenoid valve and supplying it to a hydraulic passage leading from a pressure adjusting valve to the wheel cylinders, a second proportional solenoid valve disposed between the hydraulic pressure supply passage and the pressure adjusting valve for reducing the hydraulic pressure supplied from the hydraulic pressure supply passage, and a check valve parallel to the second proportional solenoid valve. Hydraulic pressure control during automatic brake control is carried out by the first and second proportional solenoid valves. When the brake pedal is operated during automatic brake control and output hydraulic pressure of the pressure adjusting valve exceeds hydraulic pressure in the hydraulic pressure supply passage by automatic brake control, the output hydraulic pressure of the pressure adjusting valve flows toward the hydraulic pressure supply passage through the check valve.