新能源汽车一体化整车热管理新思路

Innovated approaches on integrated thermal management of electric vehicles

随着新能源汽车的高速发展与高能部件在新能源汽车中的应用,新能源汽车的热管理面临巨大挑战。其中,作为高功率能量转换部件的电机与高密度储能部件的电池的安全与效率问题最为突出,是新能源汽车热管理继续解决的关键问题。其次,消费者对车辆安全性、舒适性、高效性与续航能力的日益关注,这些表现亦与新能源汽车实时整车热管理行为密切相关,影响了整车产品的核心竞争力。本文首先由新能源汽车整车热管理技术所面临的挑战出发,分析了现代整车热管理技术的多层级优化目标。然后,针对这些目标,为进一步挖掘系统热惯性潜力,提出了一体化热管理新框架及优化控制策略,并分析了实现的可行性与优化收益,提出了匹配的技术路线。

With the rapid development of the new energy vehicles and the application of high-power components in the power train,the thermal management system of the new energy vehicles is facing great challenges.First of all,the thermal safety and efficiency of motor and battery with high-energy density are the most prominent issues for thermal management.Secondly,the consumers’increasing attention to the safety,comfort,efficiency,endurance of the vehicles is closely related to the real-time thermal management strategy and affects the core competitiveness of vehicle products.In order to mitigate these challenges and elevate the competitiveness,this paper firstly analyzes the multi-level optimization goals of modern vehicle thermal management technology.Then,an innovated integrated thermal management framework and optimal control strategy were proposed to realize the optimization goals.It will also further explore the thermal inertia potential of the system.Finally,the technical route of the new thermal management system was presented.In addition,the feasibility and optimization benefits of the innovated approach are analyzed.