Patent ID: 8290668

Claim:
A control apparatus for an automatic transmission adapted to achieve a plurality of transmission ratios by changing an engagement state of a friction element in order to transmit torque from a drive source to a drive wheel, the control apparatus comprising: a shift-pressure learning correction controlling processor configured to perform a shift-pressure learning correction in which a physical quantity representing a progress of shift is measured during a current downshift, and in which an engagement command pressure for the friction element is corrected during a next downshift on a basis of a divergence between the measured physical quantity and a target physical quantity; a shift-torque increase controlling section configured to perform a torque increase control in which a command for temporarily increasing torque of the drive source starts to be outputted when a start estimation timing of torque phase that is preset by a time management has just come during a shift transition period given between a shift start and a shift end of the downshift; and a learning convergence judging section configured: to judge whether or not the shift-pressure learning correction performed by the shift-pressure learning correction controlling section has converged, to prohibit the torque increase control until it is decided that the shift-pressure learning correction has converged, and to permit the torque increase control when it is decided that the shift-pressure learning correction has converged.