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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 10207715 B1

PDFFull Text
Date of Patent:
Feb. 19, 2019

Filed:

Dec. 16, 2015

Automatic transmission control device

Applicants:

Jatco Ltd, Fuji-shi, Shizuoka, JP;

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

Inventors:

Takashi Koguchi, Yokohama, JP;

Sho Okutani, Isehara, JP;

Makoto Komatsu, Atsugi, JP;

Toshiaki Noda, Atsugi, JP;

Takuichiro Inoue, Yamato, JP;

Yuuji Nagase, Yokohama, JP;

Hiroyasu Tanaka, Atsugi, JP;

Hideshi Wakayama, Hadano, JP;

Assignees:

JATCO Ltd, Fuji-shi, JP;

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

Attorney:

Foley & Lardner LLP

Primary Examiner:

Tisha D Lewis

Int. Cl.
CPC ...
F16H 61/16 (2006.01); B60W 30/19 (2012.01); F16H 59/18 (2006.01); F16H 59/44 (2006.01); B60W 10/02 (2006.01); B60W 10/10 (2012.01); F16H 61/02 (2006.01); F16H 61/04 (2006.01); F16H 59/42 (2006.01); F16H 61/14 (2006.01); F16H 61/684 (2006.01); F16H 59/14 (2006.01); F16H 59/36 (2006.01); F16H 59/20 (2006.01);
U.S. Cl.
CPC ...
B60W 30/19 (2013.01); B60W 10/026 (2013.01); B60W 10/10 (2013.01); F16H 59/18 (2013.01); F16H 59/44 (2013.01); F16H 61/0213 (2013.01); F16H 61/04 (2013.01); F16H 61/16 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/0661 (2013.01); B60W 2520/10 (2013.01); B60W 2540/10 (2013.01); B60W 2540/103 (2013.01); B60W 2540/106 (2013.01); B60W 2710/024 (2013.01); B60W 2710/1005 (2013.01); F16H 59/141 (2013.01); F16H 59/20 (2013.01); F16H 59/42 (2013.01); F16H 61/14 (2013.01); F16H 61/684 (2013.01); F16H 2059/147 (2013.01); F16H 2059/183 (2013.01); F16H 2059/366 (2013.01);
Abstract

An automatic transmission control device implements a downshift by disengagement of a clutch that is engaged in a gear position before the downshift. It is determined whether an engine state is in a predetermined region in which a change of an engine torque per a change of an accelerator pedal opening is smaller than that in another region, and the engine torque is within a predetermined range, and an engine rotational speed is within a predetermined range. It is determined whether an operating state is in a predetermined state of accelerator operation in which the accelerator pedal opening is larger than a predetermined value, and an accelerator pedal opening change rate has an absolute value smaller than a predetermined value. The downshift is inhibited in response to determination that the engine state is in the predetermined region and the operating state is in the predetermined state of accelerator operation.

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