| 摘要 |
PROBLEM TO BE SOLVED: To operate a motor and an engine in the optimal condition in a motor traveling mode and an engine traveling mode by setting a change gear ratio of a continuously variable transmission at the time of releasing a clutch higher than a change gear ratio at the time of fastening the clutch. SOLUTION: Change gear ratio of a continuously variable transmission 5 at the time of releasing a clutch is set at a high value, in cases where acceleration from starting and a low-speed is performed by a motor 4 while releasing a clutch 3, since the motor 4 is provided in an input side of the continuously variable transmission 5, motor torque can be increased larger, as the change gear ratio is set higher, and a large acceleration can be obtained. Furthermore, the maximum rotating speed of the motor 4 is restrained low, and the ordinary rotating speed of the motor is set in a high speed area, and the motor can be operated in an efficient area. On the other hand, since the change gear ratio is low at the time of fastening the clutch, an engine 2 can be operated in the low-speed and high-load condition, and operating efficiency is improved. |
