| 摘要 |
PURPOSE:To improve the tightening operation, etc., of a frictional element in speed change and always lighten the speed change shock effectively by changing the learning control each time when the generation state of the input torque of a speed change mechanism is different and individually calculating the learning value on the basis of the learning control for each torque generation state. CONSTITUTION:A speed change controller is equipped with a revolution speed detecting means 26 for detecting the input side revolution speed of a speed change mechanism and a learning control means 65 which learning-controls the operating states of each hydraulic pressure of the frictional elements 18 and 24 in the tightening and releasing operations of the frictional elements 18 and 24 by a speed change operation means 55 on the basis of the detected input side revolution speed. Further, a torque generation state detecting means 66 far detecting the generation state of the input torque of the speed change mechanism at the speed change by the speed change operation means 55 and a learning changing means 67 which changes the learning control by the leaning control means 65 on the basis of the detected generation state of the input torque are provided. Accordingly, even if the input torque of the speed change mechanism in speed change is different, the tightening or release control for the frictional elements 18 and 24 is carried out at proper times, and the speed change shock can be always lightened effectively. |
