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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 10316955 B1

PDFFull Text
Date of Patent:
Jun. 11, 2019

Filed:

Dec. 27, 2013

Lubricant flowrate control device of automatic transmission and lubricant flowrate control method

Applicants:

Jatco Ltd, Fuji-shi, Shizuoka, JP;

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

Inventors:

Kouichi Kotsuji, Numazu, JP;

Akira Sugimura, Sagamihara, JP;

Atsushi Maeda, Fujinomiya, JP;

Assignees:

JATCO LTD, Fuji-Shi, JP;

NISSAN MOTOR CO., LTD., Yokohama-Shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Edwin A Young

Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16H 61/00 (2006.01); B60K 6/365 (2007.10); B60K 6/387 (2007.10); B60K 6/46 (2007.10); B60K 6/543 (2007.10); F16H 37/02 (2006.01); F16H 37/08 (2006.01); F16H 59/46 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0435 (2013.01); B60K 6/365 (2013.01); B60K 6/387 (2013.01); B60K 6/46 (2013.01); B60K 6/543 (2013.01); F16H 37/022 (2013.01); F16H 37/0813 (2013.01); F16H 57/0473 (2013.01); F16H 57/0489 (2013.01); F16H 61/0021 (2013.01); F16H 61/0031 (2013.01); B60Y 2200/92 (2013.01); F16H 57/0446 (2013.01); F16H 59/46 (2013.01); F16H 2061/0037 (2013.01); Y10S 903/91 (2013.01); Y10S 903/914 (2013.01); Y10S 903/918 (2013.01); Y10S 903/93 (2013.01);
Abstract

The integrated controller calculates the required lubricant flowrate required for lubricating the friction element corresponding to a selected position on the basis of a rotation speed difference in the friction element corresponding to the selected position, and increases the lubricant flowrate supplied to the friction element corresponding to the selected position immediately after switching is made between the forward position and the reverse position and supplies the lubricant flowrate larger than the required lubricant flowrate to the friction element corresponding to the selected position.

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