Patent ID: 8630775

Claim:
An automatic transmission control apparatus for an automatic transmission incorporated in a vehicle to transmit drive force produced by an internal combustion engine and having an automatic shift mode in which a speed of the automatic transmission is automatically selected based on the drive state of the vehicle and a manual shift mode in which the speed of the automatic transmission is selected according to a manual operation of a driver also in the state where the internal combustion engine needs to be warmed up, the automatic transmission control apparatus comprising: a drive-state detection portion that detects the drive state of the vehicle; a manual operation request detection portion that detects the speed of the automatic transmission requested by the manual operation; an automatic shift selecting portion that selects the speed of the automatic transmission based on the detected drive state of the vehicle in the automatic shift mode; a warming-up determination portion that determines whether the internal combustion engine needs to be warmed up; and a shift prohibition portion that, in a state where the warming-up determination portion has determined that the internal combustion engine needs to be warmed up, shifts the automatic transmission to the speed that is selected by the automatic shift selecting portion if the speed detected by the manual operation request detection portion is higher than the speed that is selected by the automatic shift selecting portion.