Patent ID: 7819776

Claim:
A control apparatus for an automatic transmission constituted of a transmission mechanism connected to an output shaft of a motive power source, said transmission mechanism being constituted of a plurality of frictional engagement elements, said control apparatus comprising: a sensing unit that senses a power-on downshift in which said frictional engagement elements are engaged during a downshift in a driving state of said motive power source; a torque down controlling unit that controls said motive power source so that, in said power-on downshift, an output of said motive power source is reduced; a counting unit that counts a time during which an input rotational speed of said transmission mechanism approximates an after-shift synchronous rotational speed; a turbine rotational speed sensing unit that senses the input rotational speed of the transmission mechanism; and a controlling unit that controls said motive power source so that, if said time exceeds a first predetermined time while the output of said motive power source is reduced and prior to the turbine rotational speed sensing unit sensing that the input rotational speed is greater than a first predetermined value, recovery from the reduction of the output of said motive power source is attained.