DUAL-CLUTCH TRANSMISSION FOR VEHICLES

A dual-clutch-type vehicle transmission that can reduce the maximum torque transmitting capacity of each of friction clutches by coupling both of a first friction clutch and a second friction clutch upon start of moving is provided. A first input shaft and a second input shaft; a first friction clutch and a second friction clutch that can transmit motive power from a motive-power source to the first input shaft and the second input shaft; a speed-changing gear mechanism provided with a shared gear that can connect the first input shaft and the second input shaft at the same time, the speed-changing gear mechanism that can connect/disconnect the motive power from the first input shaft and the second input shaft and select a plurality of speed changing levels; and an output shaft that outputs the motive power from the speed-changing gear mechanism are provided. Upon start of moving, a first speed level is selected, both of the first friction clutch and the second friction clutch are coupled, and the motive power from the motive-power source is transmitted to the output shaft via the first friction clutch and the second friction clutch.