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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 10563679 B1

PDFFull Text
Date of Patent:
Feb. 18, 2020

Filed:

Mar. 20, 2018

Hydraulic pressure control device

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Yuya Tachibanada, Saitama, JP;

Yutaka Ishikawa, Saitama, JP;

Yusuke Yoshimura, Saitama, JP;

Assignee:

Honda Motor Co., Ltd., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Tinh Dang

Int. Cl.
CPC ...
F15B 20/00 (2006.01); F15B 15/14 (2006.01); F15B 19/00 (2006.01); F16D 41/12 (2006.01); F16H 3/66 (2006.01); F16H 61/02 (2006.01); F16H 63/34 (2006.01); F16D 41/16 (2006.01);
U.S. Cl.
CPC ...
F15B 20/008 (2013.01); F15B 15/14 (2013.01); F15B 19/005 (2013.01); F16D 41/125 (2013.01); F16D 41/16 (2013.01); F15B 2211/3057 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/87 (2013.01); F15B 2211/8757 (2013.01); F16H 3/66 (2013.01); F16H 61/0206 (2013.01); F16H 63/3483 (2013.01); F16H 2200/0069 (2013.01); F16H 2200/2012 (2013.01); F16H 2200/2046 (2013.01); F16H 2200/2048 (2013.01); F16H 2200/2066 (2013.01); F16H 2200/2082 (2013.01);
Abstract

Provided is a hydraulic pressure control device. A hydraulic pressure control device supplies hydraulic pressure to a piston using solenoid valves and performs 2:1 switching processing of stopping the supply of hydraulic pressure to the piston using a solenoid valve when the piston is switched to a parking locked state. When the piston is not switched to a side that is to be a parking locked state, hydraulic pressure is supplied to two solenoid valves, and 2:0 switching processing of stopping the supply of hydraulic pressure to the piston by solenoid valves is performed. Then, a reporting processing of reporting that at least one of the solenoid valves has failed is performed.

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