Title:
VEHICLE POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/176208
Kind Code:
A1
Abstract:
A vehicle power transmission device in which the following are provided so as to enable the transmission of torque between an input shaft, to which the torque output by a drive power source is input, and an output shaft, which outputs the torque: a continuously variable transmission which continuously varies the transmission ratio between the input shaft and the output shaft; and a gear train which has at least one transmission ratio which cannot be set using the continuously variable transmission. A forward/reverse switching mechanism is arranged on the same axial line as the input shaft, the forward/reverse switching mechanism carrying out differential action using three rotary elements: an input element; an output element; and a reaction element which, by stopping to rotate, rotates the input element and the output element in opposite directions. The vehicle power transmission device is provided with: a first clutch mechanism which connects at least any two of the three rotary elements; a brake mechanism which stops the rotation of the reaction element; a second clutch mechanism in which the input element and the output shaft are connected through the continuously variable transmission, and which transmits and cuts off the torque to a first torque transmission route from the input shaft to the output shaft via the continuously variable transmission; and a third clutch mechanism in which the output element and the output shaft are connected through the gear train, and which transmits and cuts off the torque to a second torque transmission route from the output element to the output shaft via the gear train.
Inventors:
NAKAGAWA HIDEKI (JP)
YOSHIDA MICHIO (JP)
NAKADA HIROFUMI (JP)
HABUCHI RYOJI (JP)
YOSHIDA MICHIO (JP)
NAKADA HIROFUMI (JP)
HABUCHI RYOJI (JP)
Application Number:
PCT/JP2013/064312
Publication Date:
November 28, 2013
Filing Date:
May 23, 2013
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
F16H37/02
Foreign References:
| JP2002048213A | 2002-02-15 | |||
| JPH0842662A | 1996-02-16 | |||
| JP2002122207A | 2002-04-26 | |||
| JP2005308041A | 2005-11-04 | |||
| JP2004076876A | 2004-03-11 | |||
| JP2000130548A | 2000-05-12 |
Other References:
See also references of EP 2853779A4
Attorney, Agent or Firm:
WATANABE, TAKEO (JP)
Takeo Watanabe (JP)
Takeo Watanabe (JP)
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