With the economic growth in China, people's living standards and consumption levels have improved, and more and more people own cars, so the requirements for the ride comfort of cars have higher standards. The development of things may be much more convenient, but the potential safety hazards have greatly increased, so the automobile air conditioning industry has developed rapidly in economy. According to statistics, in all traffic accidents, accidents caused by fatigue driving account for a total of 1/3, which is quite terrible data. If the car has air conditioning, so much the better. Maintaining a temperature suitable for driving can greatly alleviate fatigue and reduce the probability of accidents for drivers. Therefore, in this paper, I will focus on the design of automobile air conditioning system.

Keywords: automobile air conditioning detection and diagnosis