Method for operating a parallel hybrid drive for a vehicle

A method for operating a parallel hybrid drive for a motor vehicle having an internal combustion engine connected to a drive shaft via a clutch and a manual transmission, a three-phase machine with a rotor which is directly coupled to a countershaft of the manual transmission, said three phrase machine being connected to an electrical energy storage unit via a three-phase converter, and a hybrid drive control unit, said method comprising:

• said hybrid drive control unit determining a time average of driving torque required during a respective predeterminable travel time interval;
• controlling power output of the internal combustion engine to output driving torque corresponding to the time average determined;
• and
• controlling power output of the three-phase machine so that it outputs driving torque corresponding to the difference between required instantaneous driving torque and driving torque delivered by the internal combustion engine.