| 摘要 |
PURPOSE:To enable a vehicle to be started with ease by obtaining a critical change gear ratio for acquiring vehicle drive force suitable to the frictional coefficient of road surfaces at the time of restarting based on actual deceleration, and thereby changing the change gear ratio of a continuously variable transmission. CONSTITUTION:A CVT control device 34 inputs signals from a throttle sensor 30, a car body G sensor 32, detects the deceleration of a vehicle during the operation of a anti-lock brake control device 48, and then, obtains a critical change gear ratio through the relation obtained in advance between a critical change gear ratio for acquiring vehicle drive force suitable to the frictional coefficient of road surfaces at the time of restarting, and deceleration based on the actual deceleration by the use of a critical change gear ratio determining means. Then, the change gear ratio of the continuously variable transmission 14 is changed via a CVT hydraulic pressure control circuit 26 so that the determined change gear ratio can be obtained by a change gear ratio control means. By this constitution, it thereby makes it possible to restart the vehicle with ease by the use of drive torque suitable to the frictional coefficient of road surfaces. |
