Patent ID: 8170760

Claim:
A vehicle driving apparatus of a vehicle, including an internal combustion engine and a motor as prime movers, that changes a speed of a mechanical power output from an engine output shaft of the internal combustion engine, changes a rotor of the motor by a speed change mechanism, and transmits the mechanical power to drive wheels, the apparatus comprising: a first speed change mechanism capable of receiving the mechanical power from the engine output shaft by a first input shaft, changing the speed of the mechanical power by any one of a plurality of speed change stages, and transmitting the mechanical power to the drive wheels; a second speed change mechanism capable of receiving the mechanical power from the engine output shaft and the rotor by a second input shaft engaged with the rotor, changing the speed of the mechanical power by any one of the plurality of speed change stages, and transmitting the mechanical power to the drive wheels; a first clutch capable of engaging the engine output shaft with the first input shaft; and a second clutch capable of engaging the engine output shaft with the second input shaft, wherein the first clutch is placed in a disengaged state when an operation force for executing an engaging/disengaging operation is not applied to the first clutch, and the second clutch is placed in an engaged state when operation force for executing the engaging/disengaging operation is not applied to the second clutch.