Patent ID: 8725373

Claim:
A control apparatus of an automatic transmission having an automatic speed change device that includes a clutch engaged at a start and that changes speed of rotation of a driving source, and a fluid transmission apparatus interposed between an output shaft of the driving source and an input shaft of the automatic speed change device, the control apparatus characterized by comprising: a start intended operation detecting unit that detects, using a processor, an operation intended for starting the vehicle; and a clutch control unit that engages the clutch from a state in which the clutch is disengaged and the automatic speed change device is placed in a neutral state, when the operation intended for starting the vehicle is detected, wherein the clutch control unit includes: an initial engagement control unit that performs initial engagement control that starts frictional contact of the clutch by supplying hydraulic pressure to a hydraulic servo of the clutch, and a slip start control unit that establishes a speed ratio of the automatic speed change device at the start by slip-controlling the clutch after the initial engagement control is terminated, so as to increase a rotational speed of an output shaft of the automatic speed change media device without reducing a rotational speed of the input shaft of the automatic speed change device to less than the rotational speed of the input shaft at the end of the initial engagement control.