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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 10865812 B1

PDFFull Text
Expired
Date of Patent:
Dec. 15, 2020

Filed:

Aug. 07, 2018

Hydraulic device that controls pulsation in first oil by increasing rotation number of second pump

Applicant:

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

Inventor:

Shinichi Hirai, Wako, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Amin, Turocy & Watson, LLP

Primary Examiner:

Bryan M Lettman

Assistant Examiner:

Timothy P Solak

Int. Cl.
CPC ...
F15B 11/17 (2006.01); F16H 61/00 (2006.01); F15B 21/00 (2006.01); F04B 49/00 (2006.01); F04B 11/00 (2006.01); F04B 23/12 (2006.01); F04B 49/02 (2006.01); F04B 49/20 (2006.01); F04C 14/06 (2006.01); F04C 14/12 (2006.01); F04C 11/00 (2006.01); F04C 15/00 (2006.01); F04C 14/08 (2006.01); F04C 28/02 (2006.01); F04C 14/26 (2006.01); F04C 14/02 (2006.01); F16H 61/662 (2006.01);
U.S. Cl.
CPC ...
F15B 11/17 (2013.01); F04B 11/00 (2013.01); F04B 23/12 (2013.01); F04B 49/007 (2013.01); F04B 49/02 (2013.01); F04B 49/20 (2013.01); F04C 11/001 (2013.01); F04C 14/02 (2013.01); F04C 14/06 (2013.01); F04C 14/08 (2013.01); F04C 14/12 (2013.01); F04C 14/26 (2013.01); F04C 15/0049 (2013.01); F04C 28/02 (2013.01); F15B 21/008 (2013.01); F16H 61/0031 (2013.01); F04B 2205/13 (2013.01); F04C 2270/14 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/2654 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/8616 (2013.01); F16H 61/662 (2013.01);
Abstract

In a hydraulic control device, when it is detected that a pressure of first oil (output pressure) detected by an output pressure sensor pulsates, a transmission control unit as a TCU stops driving of a second pump or decreases a rotation number of the second pump as a first operation. Alternatively, when it is detected that the output pressure pulsates, the TCU increases the rotation number of the second pump to a rotation number (for example, maximum rotation number) that is higher than a target rotation number as a second operation.

Find Patent Forward Citations

Hirai, Shinichi. (2020). Hydraulic device that controls pulsation in first oil by increasing rotation number of second pump (U.S. Patent No. 10865812). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10865812

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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