US 9,809,107 B2
Power transmission device
Hiroyuki Shibata, Odawara (JP); Hiroyuki Shioiri, Yokohama (JP); Hideaki Komada, Gotemba (JP); Yuki Kurosaki, Susono (JP); and Hong Nam Dang, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
Appl. No. 15/29,105
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken (JP)
PCT Filed Oct. 3, 2014, PCT No. PCT/IB2014/002250
§ 371(c)(1), (2) Date Apr. 13, 2016,
PCT Pub. No. WO2015/056087, PCT Pub. Date Apr. 23, 2015.
Claims priority of application No. 2013-215038 (JP), filed on Oct. 15, 2013.
Prior Publication US 2016/0250917 A1, Sep. 1, 2016
Int. Cl. F16H 37/06 (2006.01); B60K 6/547 (2007.10); B60K 6/365 (2007.10); B60K 6/383 (2007.10); B60K 6/445 (2007.10); F16D 48/06 (2006.01); F16H 3/72 (2006.01); B60K 6/442 (2007.10); B60K 6/38 (2007.10); F16H 37/08 (2006.01); F16H 61/00 (2006.01); F16D 41/12 (2006.01)
CPC B60K 6/547 (2013.01) [B60K 6/365 (2013.01); B60K 6/383 (2013.01); B60K 6/442 (2013.01); B60K 6/445 (2013.01); F16D 48/06 (2013.01); F16H 3/728 (2013.01); F16H 37/0806 (2013.01); F16H 37/0833 (2013.01); B60K 2006/381 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/182 (2013.01); B60Y 2400/73 (2013.01); B60Y 2400/80 (2013.01); F16D 41/125 (2013.01); F16D 2500/10493 (2013.01); F16D 2500/50858 (2013.01); F16D 2500/70663 (2013.01); F16H 3/727 (2013.01); F16H 61/0025 (2013.01); F16H 2037/0866 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2082 (2013.01); Y02T 10/6239 (2013.01); Y10S 903/911 (2013.01); Y10S 903/951 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power transmission device comprising:
an engine arranged on a shaft;
a first motor;
a second motor arranged on a different shaft from the shaft on which the engine is arranged;
a first differential mechanism having a sun gear to which the first motor is connected, a carrier to which the engine is connected, and a ring gear to which the second motor and a drive wheel are connected;
a second differential mechanism having a first rotational element to which the first motor is connected, a second rotational element, and a third rotational element to which the engine is connected, the second differential mechanism being arranged such that the first motor is located between the first differential mechanism and the second differential mechanism in an axial direction of the engine;
a case that houses the second differential mechanism; and
a brake mechanism configured to restrict rotation of the second motor and the brake mechanism being configured such that an engine speed is increased by restricting rotation of the second rotational element and the engine speed is output from the ring gear, the brake mechanism being arranged in the case.