Method for providing power to auxiliary devices in electrical drive systems and electrical drive system

The method involves producing power for auxiliary loads (4-7) depending on the power to be drawn at the wheels at any given time and only driving the auxiliary loads from an electrical drive machine (8) if the vehicle is stationary or if the sum of the theoretical power demand at the wheels and the power demanded by the operating auxiliary loads exceeds the total power available from an electric drive motor (3). Independent claims are also included for the following: a drive system for driving at least one wheel of a vehicle.