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    • 9. 发明专利
    • CONTROL DEVICE IN AUTOMATIC CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE
    • JPH01312261A
    • 1989-12-18
    • JP14125688
    • 1988-06-07
    • AISIN AW CO
    • SAKAKIBARA SHIROKONDO HIDEHIROKAMIYA KAZUOIMAI NORIOOSADA YUKIHIRO
    • B60W10/04B60W10/02B60W10/10B60W10/101F16H61/00
    • PURPOSE:To prolong the life of a member to be lubricated by controlling a speed- change operating means on the basis of the signal from a target torque ratio setting means which has been changed by a torque ratio changing means, and by decreasing the operation rate of the speed-change operating means by the signal from a speed- change operation rate setting means. CONSTITUTION:A driving system temperature detecting means 143 or 163 detects the temperature of an engine E or an automatic continuously variable transmission 1 to transmit it to a driving system temperature decrease judging means 215, and this judging means 215 judges whether or not the driving system temperature is lower than a set value, on the basis of the signal from the temperature detecting means 143 or 163. When it is judged that the driving system temperature is lower than the set value, a torque ratio changing means 122 changes the target torque ratio in such a direction as the engine speed is increased in correspondence to the ratio of driving system temperature decrease to this set value, and a speed-change rate setting means 125 changes the operation rate of a speed-change operating means 100 so as to decrease the operation rate, on the basis of the signal from the torque ratio changing means 122. Thus, during the warming-up of the engine, the speed of the transmission 1 is not suddenly changed by the sudden change in the accelerator pedal operation.