Journal of South China University of Technology (Natural Science Edition) ›› 2017, Vol. 45 ›› Issue (2): 1-8.doi: 10.3969/j.issn.1000-565X.2017.02.001

• Automotive Engineering •     Next Articles

Deformation and Response Analysis of Pack and Internal Structure of Electrical Vehicle Battery in Collision

LAN Feng-chong LIU Jin CHEN Ji-qing HUANG Pei-xin   

  1. School of Mechanical and Automotive Engineering//Guangdong Provincial Key Laboratory of Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2016-07-14 Revised:2016-11-03 Online:2017-02-25 Published:2016-12-31
  • Contact: 陈吉清( 1966-) ，女，教授，博士生导师，主要从事车身结构及安全研究． E-mail:chjq@scut.edu.cn
  • About author:兰凤崇( 1959-) ，男，教授，博士生导师，主要从事车身结构及安全研究． E-mail: fclan@ scut． edu． cn
  • Supported by:
    Supported by the Science and Technology Planning Project of Guangdong Province ( 2014B010106002，2014B010125001， 2015B010137002， 2016A050503021)

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Abstract:

There are few researches on the collision safety of battery pack,and most of the researches emphasize on the battery box and its installation location instead of the internal security of the battery pack.In order to solve this problem,a refined model of battery pack,which takes into consideration the cell,the cell contact,the fixed structure and the inner shelf,was proposed,with an actual battery pack being used as the example.Then,by analyzing the collision results of battery pack and its internal structure in the aspects of deformation and acceleration,the deformation and response law of the battery box and the internal structure during the collision were investigated.The results indicate that the lifting lug near the impact position,the internal shelf,the bolt and the battery modules all deform in different degrees; and that,after the collision,the acceleration magnitudes are excessive at the cell contact and the installation point of attached components.

Key words: electrical vehicle, battery pack, refined model, collision, deformation, response law