Patent ID: 8798838

Claim:
A hybrid vehicle control device comprising: an engine; a motor provided to a drive system from the engine to a drive wheel and having a drive motor function as well as an engine startup motor function; a first clutch for switching to a hybrid vehicle travel mode by engaging and an electric vehicle travel mode by disengaging, the first clutch being installed between the engine and the motor; an automatic transmission for automatically varying a gear ratio, the automatic transmission being installed between the motor and the drive wheel; a second clutch for maintaining a slip-engaged state during an engine startup control that includes during cranking, the second clutch being installed in any position from the motor to the drive wheel; and a controller including a startup/shifting simultaneous processing section programmed such that during a simultaneous processing of the engine startup control initiated based on a startup request and a downshifting control of the automatic transmission initiated based on a shift request while traveling, a friction element that remains engaged before and after downshifting is used as the second clutch, the downshifting is completed by disengaging a friction element that is disengaged for the downshifting and engaging an engaged element that is engaged for the downshifting during cranking of the engine by increasing speed of the motor and torque capacity control of the first clutch, and the automatic transmission is placed into a state of transmitting drive force in a shift position occurring after the downshifting.