Power transmission device

A power transmission device for transmitting torque among an engine at a first side, an electric motor at a second side opposite to the first side and axles, comprising:

• a first shaft having a first gear, a second gear contiguous to the first gear and led out toward the first side for coupling with the engine;
• a second shaft drivingly coupled with the first shaft and led out toward the second side for coupling with the electric motor;
• a third gear meshing with the first gear to form a first gearing having a first gear ratio;
• a fourth gear coaxial with and contiguous to the third gear and without any clutch intervening between the third gear and the fourth gear, the fourth gear meshing with the second gear to form a second gearing having a second gear ratio;
• a third shaft coaxial with both the third gear and the fourth gear, the third shaft being drivingly coupled with the axles;
• a first clutch configured to selectively connect and disconnect the third gear with the third shaft;
• and
• a second clutch configured to selectively connect and disconnect the fourth gear with the third shaft,
• wherein both the first clutch and the second clutch are disposed closer to the second side relative to the third gear and the fourth gear.