US Patent 7835842 Motor vehicle having a hybrid drive

A motor vehicle includes two drive units for generating driving torque, the driving units being operable jointly as well as individually for generating driving torque. A device is provided for defining a driver's intention, and a control unit is provided for processing the driver's intention and for generating a control signal for controlling the drive units. The device for defining the driver's intention is constructed such that a force stage with an increased restoring force exists within the adjusting range of the device. The control unit is constructed such that, starting out from a driving operation in which only one driving device for generating a positive driving torque is active, when the force stage is exceeded, a change-over from one to the other drive unit, or a connection of the other drive unit, takes place.