Hybrid vehicle drive system with a controllable device between an internal combustion engine and electric motor and vehicle drive wheels and means for controlling this device depending on the selected operating mode of the system

摘要

A hybrid drive system for a motor vehicle, wherein a controllable device such as an automatic transmission or a center differential device is disposed between drive wheels of the vehicle and a drive power source consisting of an engine operated by combustion of a fuel, and an electric motor operated with an electric energy, and the engine and/or the electric motor is/are operated for driving the motor vehicle in different running modes. The controllable device is controlled by a control device on the basis of an input torque received by the controllable device. The control device is adapted to estimate the input torque of depending upon a currently selected one of the running modes, or effect learning control of the controllable device in different manners corresponding to the different running modes.