Patent ID: 8271169

Claim:
A control apparatus of an automatic transmission that establishes a gear speed by engaging a friction engagement element that is operated by hydraulic pressure, the control apparatus comprising: a hydraulic pressure controlling portion that controls hydraulic pressure supplied to the friction engagement element; a determining portion that determines whether a correction of the hydraulic pressure supplied to the friction engagement element during a gear shift is allowed based on a target input torque to be input to the automatic transmission during the gear shift and a torque that corresponds to an actual input torque to be actually input to the automatic transmission; and a hydraulic pressure correcting portion that corrects the hydraulic pressure based on a state of the automatic transmission during the gear shift when the determining portion determines that the correction is allowed, wherein the determining portion calculates an integral value by integrating a difference between the target input torque and the torque that corresponds to the actual input torque over a predetermined period of time, and compares the integral value with a predetermined value, and wherein if the integral value is equal to or less than the predetermined value, the determining portion allows the correction.