Review of thermal management system for battery electric vehicle

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.

Automated summary

Many countries have strengthened environmental regulations on greenhouse gas emissions, making the replacement of traditional fuel vehicles with battery electric vehicles inevitable. The performance and efficiency of battery electric vehicles depend on the thermal management system, which is sensitive to temperature changes. However, most research focuses on individual components of the thermal management system, resulting in waste heat and inefficient use of battery energy. This paper summarizes the heat sources of battery electric vehicles and reviews the research status and development trends of thermal management systems, control strategies, and air conditioning system refrigerants. The findings suggest that the thermal management systems of battery electric vehicles will develop towards functional integration, structural modularity, control intelligence, and green efficiency.