| 摘要 |
PROBLEM TO BE SOLVED: To regulate a shift time automatically so as to carry out optimal control even if either an automatic transmission or a control device is changed, by setting a correction value for increasing an engaging oil pressure in the case where an accumulated value of a shift load is a prescribed value and less, and decrease the accumulated value when the shift time is an out-of-shelf- state. SOLUTION: In a shift control treatment of a controller 11, normal line pressure calculated on the basis of a turbine torque and engine rotational speed during shift operation. A control signal according to a normal line pressure on which learning correction oil pressure and lapping oil pressure according to a throttle opening is outputted to a line pressure solenoid LS. When the shift control exceeds by the shelf pressure time during the shift operation and an out-of-shelf-state is generated, a lapping control is treated to fill the shortage of lapping of each kinds of fastening element of a speed change gear mechanism 4. Changing of either one of an automatic transmission and a control device is detected from the out-of-shelf-state, a corresponding satisfactory shift operation time is controlled to prevent extension of the shift operation time and generation of shift shock. |
