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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 9457790 B1

PDFFull Text
Date of Patent:
Oct. 04, 2016

Filed:

Dec. 06, 2012

Power transmission device

Applicants:

Hirotatsu Kitabatake, Susono, JP;

Yosuke Suzuki, Susono, JP;

Yuji Iwase, Mishima, JP;

Inventors:

Hirotatsu Kitabatake, Susono, JP;

Yosuke Suzuki, Susono, JP;

Yuji Iwase, Mishima, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Dirk Wright

Int. Cl.
CPC ...
H02P 15/02 (2006.01); B60W 10/18 (2012.01); F16H 63/48 (2006.01); B60W 30/184 (2012.01); B60K 6/445 (2007.10); B60L 11/14 (2006.01); B60W 10/08 (2006.01); B60W 20/00 (2016.01); B60L 15/20 (2006.01); B60K 6/383 (2007.10); B60T 1/00 (2006.01); B60T 1/06 (2006.01); F16D 63/00 (2006.01);
U.S. Cl.
CPC ...
B60W 10/182 (2013.01); B60K 6/383 (2013.01); B60K 6/445 (2013.01); B60L 11/14 (2013.01); B60L 15/2054 (2013.01); B60T 1/005 (2013.01); B60T 1/06 (2013.01); B60T 1/062 (2013.01); B60W 10/08 (2013.01); B60W 10/18 (2013.01); B60W 20/00 (2013.01); B60W 30/184 (2013.01); F16D 63/006 (2013.01); F16H 63/48 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/441 (2013.01); B60L 2240/443 (2013.01); B60L 2240/507 (2013.01); Y02T 10/6239 (2013.01); Y02T 10/645 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/72 (2013.01); Y02T 10/7275 (2013.01); Y10S 903/93 (2013.01); Y10T 477/322 (2015.01);
Abstract

A power transmission device includes: a planetary gear mechanism; a first rotary machine connected to a sun gear of the planetary gear mechanism; an engine and a one-way clutch that are connected to a carrier of the planetary gear mechanism; a second rotary machine and a drive wheel that are connected to a ring gear of the planetary gear mechanism; and a parking device connected to the ring gear. The power transmission device is configured to positively rotate the first rotary machine at a time a command to disengage the parking device is received and thereafter disengage the parking device, and a direction of the positive rotation is a rotational direction of the carrier rotary-driven by the engine.

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