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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.:

US 9061672 B1

PDFFull Text
Date of Patent:
Jun. 23, 2015

Filed:

Aug. 12, 2011

Vehicle brake device and method of controlling vehicle brake device

Applicants:

Motomu Hakiai, Yokohama, JP;

Yoshiyasu Takasaki, Saitama, JP;

Inventors:

Motomu Hakiai, Yokohama, JP;

Yoshiyasu Takasaki, Saitama, JP;

Assignee:

Bosch Corporation, Tokyo, JP;

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Robert A Siconolfi

Assistant Examiner:

Charles Poon

Int. Cl.
CPC ...
B60T 13/58 (2006.01); B60T 1/10 (2006.01); B60T 7/04 (2006.01); B60T 8/48 (2006.01); B60T 13/66 (2006.01); B60T 13/68 (2006.01); B60W 10/08 (2006.01); B60W 10/188 (2012.01); B60W 30/18 (2012.01); B60T 13/14 (2006.01); B60L 1/00 (2006.01); B60L 7/04 (2006.01); B60L 7/26 (2006.01); B60L 11/18 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
B60T 13/586 (2013.01); B60T 1/10 (2013.01); B60T 7/042 (2013.01); B60T 8/4872 (2013.01); B60T 13/662 (2013.01); B60T 13/686 (2013.01); B60T 2220/04 (2013.01); B60T 2270/604 (2013.01); B60W 10/08 (2013.01); B60W 10/188 (2013.01); B60W 30/18127 (2013.01); B60T 13/14 (2013.01); B60L 1/003 (2013.01); B60L 7/04 (2013.01); B60L 7/26 (2013.01); B60L 11/1805 (2013.01); B60L 15/2009 (2013.01); B60L 2240/461 (2013.01); B60L 2270/145 (2013.01); Y02T 10/7005 (2013.01); B60W 2510/182 (2013.01); B60Y 2300/89 (2013.01); Y02T 10/7275 (2013.01);
Abstract

There is provided a vehicle brake device that includes hydraulic brake means for generating a hydraulic brake force and regenerative brake means for generating a regenerative brake force and distributes the hydraulic brake force and the regenerative brake force for a driver-requested brake force. The hydraulic brake means includes a pressure reducing valve that reduces hydraulic pressure of wheel cylinders. The vehicle brake device includes hydraulic brake control means for maintaining the pressure reducing valve open while the driver-requested brake force is covered by only the regenerative brake force. The hydraulic brake control means does not open the pressure reducing valve when hydraulic pressure is present in the wheel cylinders.

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