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Dynamic Models and Intelligent Control Algorithms for a $CO_2$ Automotive Air Conditioning System  

Han, Do-Young (School of Mechanical and Automotive Engineering, Kookmin University)
Jang, Kyung-Chang (Graduate School of Mechanical Engineering, Kookmin University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.4, 2006 , pp. 49-58 More about this Journal
Abstract
In the respect of the environmental protection viewpoint, $CO_2$ may be one of the most attractive alternative refrigerants for an automotive air-conditioning system. For the development of control algorithm of a $CO_2$ automotive air-conditioning system, characteristics of a $CO_2$ refrigerant should be considered. The high-side pressure of a $CO_2$ system should be controlled in order to improve the system efficiency. In this study, dynamic physical models of a $CO_2$ system were developed and dynamic behaviors of the system were predicted by using these models. Control algorithms of a $CO_2$ system were also developed and the effectiveness of these algorithm was verified by using dynamic models.
Keywords
$CO_2$ automotive air-conditioning system; Dynamic model; High-side pressure control; Indoor air temperature control; Neural network; Fuzzy logic;
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