Abstract: With the global energy structure transition and the advancement of carbon neutrality goals, thermal management systems for new energy vehicles have become core technologies to enhance industrial competitiveness and achieve sustainable development. This study focuses on the thermal management system of new energy commercial vehicles, establishing three independent subsystems: drive system cooling, power battery thermal management, and passenger compartment air conditioning, while proposing a multi-mode coordinated control strategy. Experimental validation under extreme summer and winter environmental conditions demonstrated that the system design meets performance requirements, but revealed issues of excessive energy consumption. To address this, multi-dimensional optimization strategies are proposed. The research findings provide theoretical and technical support for engineering applications and energy efficiency optimization of thermal management systems in new energy vehicles.

Key words: new energy vehicles; thermal management; high energy consumption; multi-dimensional optimization

摘要： 随着全球能源结构转型与碳中和目标的推进，新能源汽车热管理系统成为提升产业竞 争力与实现可持续发展的核心。文章聚焦新能源商用车热管理系统，构建了驱动系统冷却、 动力电池热管理与乘员舱空调三个独立系统，并提出多模式协同控制策略。通过夏季与冬季极 端环境实验验证，系统设计均满足性能要求，但暴露了能耗过高问题。对此，提出多维度优 化策略。研究结果为新能源汽车热管理系统的工程化应用与能效优化提供了理论与技术支撑。

关键词: 新能源汽车；热管理；高能耗；多维度优化