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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 10309530 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Nov. 09, 2015

Automatic transmission

Applicants:

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

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Yuhei Yoshioka, Anjo, JP;

Yasushi Sato, Anjo, JP;

Toshihiko Kamiya, Toyota, JP;

Akio Murasugi, Toyota, JP;

Masahide Ichikawa, Nagakute, JP;

Assignees:

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

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oliff PLC

Primary Examiner:

Jacob S Scott

Assistant Examiner:

Murad Jahmani

Int. Cl.
CPC ...
F16H 59/40 (2006.01); F16H 59/42 (2006.01); F16H 59/46 (2006.01); F16H 59/74 (2006.01); F16H 61/12 (2010.01); F16H 61/14 (2006.01); F16H 61/38 (2006.01); F16H 61/64 (2006.01); F16H 39/42 (2006.01); F16H 61/02 (2006.01); F16H 61/00 (2006.01); F16H 59/14 (2006.01); F16H 61/36 (2006.01); F16H 59/36 (2006.01); F16H 59/38 (2006.01);
U.S. Cl.
CPC ...
F16H 61/38 (2013.01); F16H 39/42 (2013.01); F16H 61/0021 (2013.01); F16H 61/0267 (2013.01); F16H 61/0276 (2013.01); F16H 61/64 (2013.01); F16H 59/46 (2013.01); F16H 2059/366 (2013.01); F16H 2059/385 (2013.01); F16H 2061/124 (2013.01); F16H 2061/1236 (2013.01); F16H 2061/1252 (2013.01);
Abstract

An automatic transmission where the control portion controls the adjustment solenoid valve so that the circulation hydraulic pressure equals to a second circulation hydraulic pressure higher than the first circulation hydraulic pressure when the rotational speed difference between the output rotational speed of the fluid transmission device and the rotational speed of the driving source is more than the predetermined rotational speed.

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