| 摘要 |
PROBLEM TO BE SOLVED: To suitably prevent the backward movement of a vehicle, even when the backward movement of the vehicle is not able to be inhibited mechanically when the vehicle is stopped in a forward range. SOLUTION: When a second transmission position (2nd) is selected and the backward movement of a vehicle is mechanically inhibited by means of a one- way clutch (SA9), the burden of a motor generator is reduced and the energy efficiency of the motor is improved, because the motor torque TM which is required to generate creep torque is reduced from an ordinary condition or to nearly zero (SA10). On the other hand, when a first transmission position (1st) is selected and the backward movement of the vehicle is not mechanically inhibited (SA11), the backward movement of the vehicle is suitably prevented on a slope, because the motor torque TM is increased (SA12). |
