DEVELOPMENT OF HEATING AND COOLING THEMAL MODEL FOR AN AUTOMOTIVE AIR COMPRESSOR BASED ON EXPERIMENTAL DATA

The paper presents how to determine the heating and cooling thermal model for an air compressor of automotive air suspension system by using experimental data. A set of test bench for the air compressor was firstly established. Based on experiment, temperature of the heat sink of the air compressor and air temperature and pressure inside two tanks were obtained. By analyzing heat exchange process of air compressor, the thermal model of air compressor is constructed, including temperature increasing and decreasing process. The calculated results by means of the presented model show that the thermal model can correctly descript the process of temperature variation of the air compressor.