李明敏　程树　黄炯

摘 要：随着国家排放节能减排要求愈发严格，汽车发展日趋电动化，越来越多的传统汽车厂家都选择在当前传统车平台上开发混合动力汽车作为纯电动汽车的过渡车型。混合动力汽车的电池为动力电池，由于电池容量小放电倍率高，如不进行主动冷却导致电池的温度急剧攀升。本文主要介绍一种比较先进的电池包双冷却液冷系统设计理念，通过对比当前市场常见风冷系统，从能耗、工况等角度通过对比手法来阐述该设计理念的优越性和先进性。

关键词：混动 动力电池 双冷却系统 能耗 冷却效率

An Advanced Thermal Management Design Concept for the Power Battery of Hybrid Vehicles

Li Mingmin，Cheng Shu，Huang Jiong

Abstract：With the increasingly stringent requirements of national emission energy conservation and emission reduction， the development of vehicles is becoming more and more electric. More and more traditional automobile manufacturers choose to develop hybrid electric vehicles on the current traditional vehicle platform as the transition model of pure electric vehicles. The battery of hybrid electric vehicle is power battery. Due to its small capacity and high discharge rate， the temperature of the battery will rise sharply without active cooling. This article mainly introduces a more advanced design concept of battery cooling system. By comparing the common cooling systems in the market， the advantages of the design concept are expounded through comparison of energy consumption and working conditions.

Key words：hybrid， power battery， dual cooling system， energy consumption， cooling efficiency

隨着国家排放节能减排要求愈发严格，汽车发展日趋电动化当前，许多国家政府、世界知名的汽车企业和科研机构纷纷研制开发低能耗、低排放，且能满足现代使用性能要求的新型汽车。[1]混合动力汽车作为纯电动汽车的过渡车型，这里主要把其分为油电混合动力、插电式混合动力和增程式电动。

混合动力汽车和传统车的主要区别是增加了电池包和电机，通过把部分燃料能转化成电能再转化成机械能来达到最优的燃油消耗比。电池包作为混动汽车的一部分动力源，是整车的核心部件，温度直接影响电池性能的表现，需要对动力电池的工作温度严格控制。[2]该电池包由于容量小，在相同工况下其充放电倍率明显高于纯电动车型等能量型电池，如不进行主动冷却导致电池的温度急剧攀升，所以混动车型中动力电池的热管理设计显的尤为重要。……