A method for driving a hybrid compressor of an air conditioning system of a vehicle, wherein the vehicle comprises a first drive source, the air conditioning system comprises an evaporator, the hybrid compressor comprises a second drive source, and the hybrid compressor is driven by the first drive source via an electromagnetic clutch or the second drive source, or combination thereof, wherein the method comprises the steps of:
- (a) engaging the electromagnetic clutch;
- (b) detecting a temperature of air dispensed from the evaporator;
- (c) disengaging the electromagnetic clutch when the temperature of the air is equal to a first predetermined temperature;
- and
- (d) activating the second drive source, wherein steps (c) and (d) are performed simultaneously or substantially simultaneously.