Control apparatus for vehicular drive system

A control apparatus for a vehicular drive system provided with an automatic transmission constituting a part of a power transmitting path between an electric motor and drive wheels, and a fluid-operated power transmitting device provided between the electric motor and the automatic transmission and having a pump impeller connected to said electric motor, and an output rotary element connected to said automatic transmission, an engine, and an engine connecting/disconnecting clutch interposed between said engine and said pump impeller and configured to selectively connect said engine and said pump impeller to each other, and a heat exchanging device configured to be operable to carry out a heat exchange between a cooling water of said engine and a working oil of said fluid-operated power transmitting device, said control apparatus comprising:

• an electronic control device configured to:
• implement a stall control of said fluid-operated power transmitting device wherein the pump impeller of said fluid-operated power transmitting device is rotated by said electric motor while the fluid-operated power transmitting device is placed in a stalling state, such that said stall control of said fluid-operated power transmitting device is implemented with said engine being in a rest state;
• place said engine connecting/disconnecting clutch in a released state and disconnect said engine from said pump impeller during said stall control of the fluid-operated power transmitting device that is implemented with said engine being in the rest state;
• and
• warm up said engine by transferring a heat of said working oil to said cooling water, with a heat exchanging operation of said heat exchanging device during said stall control of the fluid-operated power transmitting device that is implemented with said engine being in the rest state.