Temperature and humidity control for an automobile during heating period
This paper investigates a control strategy for automobile climate control (ACC) problem; in particular, the heating mode in winter is considered when the initial car compartment temperature and outside temperature are colder than comfortable. By analyzing the air conditioning processes involving the automobile air-handling unit operating at various weather conditions on a psychrometric chart, a control strategy is developed based upon the concept of conservation of sensible heat and latent heat. Irrespective of the car compartment’s initial condition, the control strategy is to control air flow and mixed air temperature such that the compartment conditions in terms of temperature and humidity reach a setting condition. The proposed strategy is composed of two parts: air mass flow rate and the percentage of heating air flow. In short, balancing the sensible heat transfer among the air condition processes is essential to achieving temperature control, as variation in the net sensible heat will lead to changes in temperature. The proposed control strategy is evaluated in a Matlab/Simulink simulation environment, which shows the proposed control strategy performs better when compared to traditional fuzzy control.
enthalpy climate control automobile psychrometric chart
Chung-Lun Li Xu Zhang Sheng-Luen Chung
Department of Electrical Engineering, National Taiwan University of Science and Technology, ＃43, Sec Institute of HVAC and Gas Research, Tongji University, 1239 Siping Road, Shanghai, P.R. China
国际会议
2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)
四川绵阳
英文
2582-2587
2011-05-23（万方平台首次上网日期，不代表论文的发表时间）