As the core component of automotive heating and cooling system, the AC compressor functions in coolant circulation to achieve system pressurization. The effect of air compression is increased temperature of coolant, which increases density of air intake and improves power per liter.

After years of development, automobile has formed a perfect system, and with the development of technology and progress, the function of automobile is constantly improving. Automobile air conditioning is an important part of modern automobile. The research of automobile air conditioning is of great significance for the application of automobile air conditioning. Compressor is the core component of automobile air conditioner. The study of the influence of its rotational speed on automobile air conditioning will help to improve the performance of automobile air conditioning. This paper analyzes the influence of compressor speed on automobile air conditioning operation parameters under automobile air conditioning refrigeration mode, and adjusts and optimizes the speed of automobile air conditioning compressor. 

Keywords：automobile air conditioning; ac condenser; compressor; rotational speed; refrigeration performance

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