Zero-emission pure electric vehicles (PEVs) have been progressively developed towards scale production as passenger cars. However, the power, economy, driving range, and other indicators are seriously restricted by onboard batteries. In freezing winter and sultry summer, these problems are greatly aggravated by the energy versus temperature characteristics of the batteries and the turning on of air conditioning (AC). Against this background, three key issues related to thermal management in the development of PEVs: battery thermal management (BTM) technology, cabin thermal management technology (air conditioning system), and integrated thermal management (ITM) technology are proposed. The corresponding advances which are in the embryonic stage are briefly summarized in this paper. By analyzing the cross-functional parts of two auxiliary systems with similar thermal management roles, it is indicated that ITM is the necessary and inevitable way to develop PEVs. ITM can realize the lightweight of PEVs and make up for the shortcomings of each subsystem.

零排放纯电动汽车（PEV）已逐步向乘用车规模化发展。但其动力、经济性、续驶里程等指标受到车载电池的严重制约。在寒冷的冬季和闷热的夏季，电池的能量与温度特性以及空调（AC）的开启会大大加剧这些问题。在此背景下，提出了电动汽车发展中与热管理相关的三个关键问题：电池热管理（BTM）技术、机舱热管理技术（空调系统）和集成热管理（ITM）技术。本文简要总结了处于萌芽阶段的相应进展。通过分析具有相似热管理作用的两个辅助系统的跨功能部分，表明 ITM 是发展 PEV 的必要和必然途径。ITM可以实现PEV的轻量化，弥补各个子系统的不足。