Journal of System Simulation ›› 2016, Vol. 28 ›› Issue (2): 492-497.

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Simulation of Performance Optimization Control about Transcritical CO2 Automotive Air Conditioning System

Zhao Jinghua1,3, Tao Jing2,3, Xie Fangxi3, Zhao Kainan1   

  1. 1. Computer College, Jilin Normal University, Siping 136000, China;
    2. Technology Research and Development, FAW-Valeo Automotive Air Conditioning Co., Ltd., Changchun 130011, China;
    3. College of Automotive Engineering, Jilin University, Changchun 130025, China
  • Received:2014-09-17 Revised:2014-12-10 Online:2016-02-08 Published:2020-08-17

Abstract: According to the researching data of certain corporate, a semi-theoretical model of the transcritical CO2 automotive air conditioning system was established using AMESim Software. The research was carried out successively from the aspects of thermodynamics, system performance analysis and optimal control, in order to ensure that the coefficient of performance (COP) reached its maximum. According to the results of exergy loss analysis and performance analysis, the fuzzy PID controller was designed. Under the interference of the ambient temperature change, the controller could control high pressure to ensure COP reach its maximum. The comparison with the well-tuning PID controller shows that the fuzzy PID controller has great improvement in some control performance indicators such as overshoot, settling time and motion range of the implementing agencies, etc.

Key words: automotive air conditions, CO2, coefficient of performance (COP), fuzzy control

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