| 摘要 |
PURPOSE:To restrict the shock due to a speed change by properly controlling the released state of a first friction element. CONSTITUTION:Learning control by a releasing pressure learning controlling means 200C is exercised on the releasing oil pressure of a first friction element on the releasing side, at the time of speed change when the first friction element is released and a second friction element is fastened, based on a difference between a target speed changing time, which is set by a target speed changing time setting means 200A, and actual speed changing time, which is detected by a speed changing time detecting means 200B. Accordingly, the released state of the first friction element can be properly controlled, thereby restricting the shock due to the speed change. The target speed changing time is set, based on turbine torque. In addition, since the fastening oil pressure of the second friction element on the fastening side is controlled based on the variation in the number of revolutions on the input side of a transmission, the fastening timing of the second friction element can be properly controlled, thereby restricting a timing lag. |
