SYSTEM AND METHOD OF CONTROLLING AIR CONDITIONING FOR VEHICLE

A vehicle air conditioning control system according to an embodiment of the present invention comprises a stirling refrigerator, an outer heat exchanger, an inner heat exchanger, a clutch, a bypass valve, a first pump, a second pump, and a controller. The stirling refrigerator includes: a compression part operated by receiving a driving force from the engine of a vehicle, and compressing a first working fluid filling the inside thereof; an expansion part expanding the first working fluid compressed by the compression part; and a regeneration part through which the compression part and the expansion part communicate with each other fluidly, wherein the expansion part absorbs heat and the compression part emits the heat through a repetition of the isothermal compression process, the isochoric process, and the isothermal expansion process of the first working fluid. The outer heat exchanger connected to the compression part emits the heat from the compression part to the outside when selectively circulating a second working fluid in the compression part. The inner heat exchanger connected to the expansion part cools outdoor air through heat exchange between the outdoor air and a third working fluid when selectively circulating the third working fluid in the expansion part, wherein the outdoor air is supplied into the interior of the vehicle. The clutch installed between the engine and the stirling refrigerator transmits power from the engine to the stirling refrigerator selectively. The bypass valve mounted between the stirling refrigerator and the inner heat exchanger allows the third working fluid from the expansion part to selectively bypass the inner heat exchanger. The first pump circulates the second working fluid. The second pump circulates the third working fluid. The controller controlling the operations of the clutch, the bypass valve, and the first and the second pump is capable of performing a cooling control on the first working fluid when the temperature of the first working fluid is higher than the first predetermined temperature. The vehicle air conditioning control system according to the present invention is capable of efficiently controlling an air conditioning system using the stirling refrigerator.