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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 9688141 B1

PDFFull Text
Date of Patent:
Jun. 27, 2017

Filed:

Feb. 04, 2015

Clutch control device for four-wheel drive vehicle

Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Tetsu Takaishi, Kanagawa, JP;

Atsuhiro Mori, Kanagawa, JP;

Shunichi Mitsuishi, Kanagawa, JP;

Makoto Morita, Kanagawa, JP;

Katsuyoshi Ogawa, Kanagawa, JP;

Assignee:

Nissan Motor Co., Ltd., Yokohama, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Stacey Fluhart

Int. Cl.
CPC ...
B60K 23/08 (2006.01); F16D 48/06 (2006.01); F16H 57/04 (2010.01); B60K 17/02 (2006.01); B60K 17/346 (2006.01); B60K 17/348 (2006.01); B60K 23/04 (2006.01); F16D 13/74 (2006.01); F16D 21/00 (2006.01); F16D 13/72 (2006.01); F16D 48/02 (2006.01); B60K 17/35 (2006.01);
U.S. Cl.
CPC ...
B60K 23/08 (2013.01); B60K 17/02 (2013.01); B60K 17/348 (2013.01); B60K 17/3467 (2013.01); B60K 23/04 (2013.01); F16D 13/72 (2013.01); F16D 13/74 (2013.01); F16D 21/00 (2013.01); F16D 48/02 (2013.01); F16D 48/066 (2013.01); F16H 57/0409 (2013.01); F16H 57/0447 (2013.01); F16H 57/0473 (2013.01); F16H 57/0483 (2013.01); B60K 17/35 (2013.01); B60K 17/3515 (2013.01); B60K 23/0808 (2013.01); B60K 2023/085 (2013.01); F16D 2048/0218 (2013.01); F16D 2048/0221 (2013.01); F16D 2048/0224 (2013.01); F16D 2500/1045 (2013.01); F16D 2500/10431 (2013.01); F16D 2500/10462 (2013.01); F16D 2500/3026 (2013.01); F16D 2500/3055 (2013.01); F16D 2500/3056 (2013.01); F16D 2500/30401 (2013.01); F16D 2500/5106 (2013.01); F16D 2500/7045 (2013.01);
Abstract

A clutch control device is provided for a four-wheel drive vehicle. The clutch control device is able to suppress the elevation of the temperature of the oil supplied to a friction clutch during two-wheel drive travel when the friction clutch is released. The clutch control device includes a dog clutch and an electronic control coupling. The friction clutch is housed in a coupling case. When the dog clutch and the friction clutch are released, a two-wheel drive mode is selected. The coupling case has a passage opening that is closed to retain lubrication oil in an oil chamber with respect to a clutch chamber that houses the friction clutch. When oil stirring conditions are met thereafter, the passage opening is opened and the lubrication oil is allowed to flow into the clutch chamber from the oil chamber.

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