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汽车安全与节能学报

汽车安全与节能学报 ›› 2012, Vol. 3 ›› Issue (1): 51-57.DOI: 10.3969/j.issn.1674-8484.2012.01.009

• 汽车节能与环保 • 上一篇    下一篇

基于行驶工况的动力锂离子电池包的热动力仿真（英文）

罗玉涛, 谭迪, 何小颤   

  1. 华南理工大学 机械与汽车工程学院，广州 510640，中国
  • 收稿日期:2011-11-28 出版日期:2012-03-25 发布日期:2012-03-28
  • 作者简介:LUO Yutao / 罗玉涛（1972—），男（汉），山东，教授。 E-mail ：ctytluo@scut.edu.cn
  • 基金资助:

    国家“八六三”高技术计划 (2012AA110702)

Thermodynamics Modeling and Simulating of Lithium-Ion Battery Pack under Electric Vehicle Driving Cycle

LUO Yutao, TAN Di, HE Xiaochan   

  1. （School of Mechanical and Automotive Engineering, South China University of Technology,
    Guangzhou 510640, China）
  • Received:2011-11-28 Online:2012-03-25 Published:2012-03-28
  • Supported by:

    National“ 863” High-tech Project (2012AA110702)

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摘要： 电动汽车电池的工作条件随着电动汽车的载荷及行驶工况变化而变化。该文对基于行驶工况
的锂离子动力电池的温度变化进行了分析。根据电池的结构特性与热力学理论，用有限元分析(FEA)，
建立了锂离子动力电池包的三维热模型。提出了热效率的概念。以北京城市行驶工况载荷条件为例，
进行了某电池包的实时温度场分布和热效率分析。由仿真结果表明：电池包的热特性随着汽车的行驶
工况而变化。该结果可用于未来冷却系统的设计过程。

关键词: 电动汽车, 锂离子电池包, 热力学, 行驶工况, 热效率

Abstract: Battery operation conditions for electric vehicles are varying with the vehicle load and driving
cycle. 3-D thermal field of the lithium-ion battery pack on electric vehicle was modeled using a finite element
analysis (FEA), based on the battery architecture and thermodynamics theory to analyze the thermal dynamic
performance under driving cycles. The thermal efficiency evaluating method is brought forward. The real time
thermal field distribution and the thermal efficiency of one real lithium-ion battery pack were analyzed with
Beijing city driving cycle taken as the load constrain example. Simulation results show that the load constrains
affect the thermodynamics. The results can be used in the future cooling system design process.

Key words: electric vehicle, lithium-ion battery pack, thermodynamics, driving cycle, thermal efficiency

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