•  When shifting, real-time feedback correction of the clutch engagement pressure is operated by the duty-cycle solenoid valves so that the speed change of the turbine shaft (change of the turbine rotating speed) matches the predetermined target value.

•  Also, the clutch engagement pressure is optimally corrected so as to absorb the changes in engine performance and/or of elapsed transaxle, according to the shift results in the past.

b3e0517t042

1	Turbine rotating speed
2	Hydraulic pressure
3	Clutch engagement pressure
4	Target turbine rotating speed
5	Controls turbine change rate at start of shift so that target value is obtained
6	Performs feedback control so that target change rate of the turbine rotating speed is obtained
7	Time