Review of thermal management system for battery electric vehicle
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Abstract
Many countries around the world have strengthened of the environmental regulations on greenhouse gas (GHG) emission, so battery electric vehicles (BEVs) to replace traditional fuel vehicles has become an inevitable trend in the automotive industry. The range, performance, the efficiency and lifespan of BEVs are closely related to thermal management system (TMS). At the same time, battery electric vehicles thermal management system (BEVTMS) is very sensitive to change of temperature. Most of the current research has been conducted on only one system or component of the BEVTMS, which not only leads to a large amount of waste heat from BEVs not being utilized but also does not utilize the battery energy efficiently. Against this background, the paper firstly summarized the distribution of heat sources of BEVs. Secondly, the research status and development trend of TMS types, control strategies and air conditioning system refrigerants of BEVs were reviewed. Through the above two aspects of elaboration and analysis, it indicates that BEVTMS will definitely develop in the direction of functional integration, structural modularity, control intelligence and green efficiency.