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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 9643608 B1

PDFFull Text
Date of Patent:
May. 09, 2017

Filed:

Jan. 27, 2014

Vehicular power transmission device

Applicant:

Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;

Inventors:

Satoru Kasuya, Nishio, JP;

Masashi Kito, Anjo, JP;

Yuichi Seki, Okazaki, JP;

Makoto Iwanaka, Okazaki, JP;

Assignee:

AISIN AW CO., LTD., Anjo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Ramya Burgess

Assistant Examiner:

David Morris

Int. Cl.
CPC ...
B60W 30/18 (2012.01); B60W 10/06 (2006.01); B60W 10/18 (2012.01); F16H 61/30 (2006.01); F16H 63/34 (2006.01); B60T 1/06 (2006.01); B60K 6/48 (2007.10); B60W 10/30 (2006.01); B60W 20/00 (2016.01); F16H 59/54 (2006.01); F16H 59/66 (2006.01); F16H 61/22 (2006.01); F16H 61/28 (2006.01); F02D 29/02 (2006.01); F16H 63/50 (2006.01);
U.S. Cl.
CPC ...
B60W 30/18027 (2013.01); B60K 6/48 (2013.01); B60T 1/06 (2013.01); B60T 1/062 (2013.01); B60W 10/30 (2013.01); B60W 20/00 (2013.01); F02D 29/02 (2013.01); F16H 59/54 (2013.01); F16H 59/66 (2013.01); F16H 61/22 (2013.01); F16H 61/28 (2013.01); F16H 61/30 (2013.01); F16H 63/34 (2013.01); F16H 63/3425 (2013.01); F16H 63/50 (2013.01); B60W 10/06 (2013.01); B60W 10/182 (2013.01); B60W 30/18118 (2013.01); B60W 2540/16 (2013.01); B60W 2550/142 (2013.01); B60W 2710/18 (2013.01); B60W 2710/186 (2013.01); B60W 2710/188 (2013.01); Y02T 10/6221 (2013.01);
Abstract

A vehicular power transmission device that includes a parking gear that is drivingly coupled with wheels; a parking pawl that is capable of meshing or unmeshing with or from the parking gear; a hydraulic pressure actuator that unmeshes the parking pawl from the parking gear when a release hydraulic pressure is supplied; a first oil pump that generates a hydraulic pressure; a second oil pump that generates a hydraulic pressure, the second oil pump having a capacity smaller than the first oil pump; a hydraulic pressure control device that is capable of deriving the release hydraulic pressure from the hydraulic pressure generated by the second oil pump or the hydraulic pressure generated by the first oil pump and supplying the release hydraulic pressure to the hydraulic pressure actuator; and a control unit.

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