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(11) | EP 2 853 777 A8 |
| (12) | CORRECTED EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | POWER TRANSMISSION DEVICE FOR VEHICLE |
| (57) A power transmission unit for a vehicle is provided. The power transmission unit
is applied to a vehicle comprising: a continuously variable transmission that is adapted
to alter a speed ratio continuously, and that is disposed between an input shaft to
which a torque of a prime mover is inputted and an output shaft that outputs the torque;
a first gear train that transmits the torque when propelling the vehicle in the forward
direction; and a second gear train that transmits the torque when propelling the vehicle
in the backward direction and that is arranged parallel to the first gear train. The
power transmission unit is comprised of: a first clutch device that selectively enables
and disables a torque transmitting route from the input shaft to the output shaft
via the first gear train to transmit the torque therethrough; a dog clutch that switches
the torque transmitting route from the input shaft to the output shaft between a continuously
variable speed change route in which the torque is transmitted through the continuously
variable transmission and a reverse route in which the torque is transmitted through
the second gear train; and a second clutch device that selectively enables and disables
both of the continuously variable speed change route and the reverse route to transmit
the torque to the input shaft or the output shaft. The first clutch device and the
second clutch device are separately disposed on any of the input shaft and the output
shaft in a manner to be situated at different axial positions on those shafts.
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