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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 10118478 B1

PDFFull Text
Date of Patent:
Nov. 06, 2018

Filed:

Oct. 28, 2014

Automatic transmission

Applicant:

Jatco Ltd, Fuji-shi, Shizuoka, JP;

Inventors:

Kenichi Watanabe, Sagamihara, JP;

Takeshi Morita, Kanagawa, JP;

Assignee:

JATCO Ltd, Fuji-shi, JP;

Attorney:

Foley & Lardner, LLP

Primary Examiner:

Sherry L Estremsky

Int. Cl.
CPC ...
F16H 3/72 (2006.01); B60K 6/543 (2007.10); B60K 6/365 (2007.10); F16H 61/66 (2006.01); F16H 63/50 (2006.01); F16H 3/62 (2006.01); B60K 6/38 (2007.10); F16H 3/66 (2006.01); B60K 6/387 (2007.10); B60K 6/48 (2007.10);
U.S. Cl.
CPC ...
B60K 6/543 (2013.01); B60K 6/365 (2013.01); B60K 6/38 (2013.01); B60K 6/387 (2013.01); B60K 6/48 (2013.01); F16H 3/62 (2013.01); F16H 3/663 (2013.01); F16H 3/72 (2013.01); F16H 3/725 (2013.01); F16H 61/66 (2013.01); F16H 63/50 (2013.01); B60K 2006/381 (2013.01); B60Y 2200/92 (2013.01); B60Y 2400/72 (2013.01); B60Y 2400/73 (2013.01); F16H 2061/6602 (2013.01); F16H 2200/0043 (2013.01); F16H 2200/2023 (2013.01); F16H 2200/2043 (2013.01); F16H 2200/2064 (2013.01); F16H 2200/2094 (2013.01); Y02T 10/6221 (2013.01); Y10S 903/91 (2013.01); Y10S 903/912 (2013.01); Y10S 903/918 (2013.01);
Abstract

An input shaft () connectable to an engine (), an output gear (), a transmission case () and a Ravigneaux planetary gear unit () are provided. Four rotational elements of the Ravigneaux planetary gear unit () are a single pinion side sun gear (Ss), a carrier (C), a ring gear (R) and a double pinion side sun gear (Sd) which are arranged orderly on a common speed diagram. The single pinion side sun gear (Ss) is constantly connected to a motor/generator (), and the ring gear (R) is constantly connected to the output gear (). And, with usage of a low & reverse clutch (L&R/C), a high clutch (H/C) and a low brake (L/B), a first speed (1st), a second speed (2nd), a third speed (3rd) and a stepless change speed (eCVT) are established.

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