Control device for automatic transmission

A control device for an automatic transmission that changes rotation speed transferred from a drive force source of a vehicle to an input shaft and then transfers the rotation speed to the output shaft, the automatic transmission having:

• a speed change mechanism that changes a speed ratio that represents a ratio of the rotation speed of the input shaft to the rotation speed of the output shaft by utilizing oil pressure;
• a mechanical pump that is driven by rotation of the input shaft and that generates the oil pressure for changing the speed ratio of the speed change mechanism;
• and an electric pump that is driven independently of the drive force source by using electric power and that generates the oil pressure for changing the speed ratio of the speed change mechanism together with the generated oil pressure from the mechanical pump, the control device for the automatic transmission being comprising:
• a command output portion that outputs a command that causes the electric pump to be driven so that the oil pressure generated by the mechanical pump and the electric pump becomes greater than or equal to a needed oil pressure of the speed change mechanism in a case where the oil pressure generated by the mechanical pump is smaller than the needed oil pressure;
• a determination portion that determines whether or not a predetermined heat generation condition regarding the electric pump is met, in a case where the command is output by the command output portion;
• and
• a shift control portion that, in a case where the determination portion has determined that the heat generation condition is met, performs a shift control of causing the speed ratio of the speed change mechanism to become higher than the speed ratio occurring when the determination portion determines that the heat generation condition is met.