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.:
Date of Patent:
Apr. 10, 2012
Filed:
Nov. 23, 2009
Tetsuro Kuzuya, Okazaki, JP;
Ryuji Ibaraki, Nishikamo, JP;
Kenji Odaka, Toyota, JP;
Yuji Iwase, Mishima, JP;
Tatsushi Takenaka, Toyota, JP;
Tomoyuki Maruyama, Toyota, JP;
Koichi Kondo, Toyoake, JP;
Tetsuro Kuzuya, Okazaki, JP;
Ryuji Ibaraki, Nishikamo, JP;
Kenji Odaka, Toyota, JP;
Yuji Iwase, Mishima, JP;
Tatsushi Takenaka, Toyota, JP;
Tomoyuki Maruyama, Toyota, JP;
Koichi Kondo, Toyoake, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A hybrid vehicle power transmission device provided with a power distribution mechanism composed of a planetary gear device for distributing motive power of a drive source to a motor and an output shaft is further provided with a damper device in a power transmission path between the power distribution mechanism and a first motor. Consequently, the damper device receives only reaction torque dealt by the first motor through the power distribution mechanism with respect to drive torque of an engine. Thus, since the torque transmitted to the damper device is smaller than the drive torque of the engine, the torque capacity of the damper device can be decreased and the size of the damper device can be reduced. As a result, the overall size of the power transmission device can be similarly reduced.