微型电动汽车正面碰撞结构耐撞性设计

Frontal crashworthiness structure design of mini electric passenger cars

结合上海汽车集团股份有限公司自主品牌一款微型电动汽车项目,讨论了电动轿车在质量分布和舱室布置方面与常规内燃机轿车的差异,有针对性地设计规划了具有集中大质量块的电动轿车的碰撞载荷路径和正面碰撞变形区域,通过大量的模拟计算,完成车辆正面结构的详细设计,计算结果表明:该设计达到了良好正面碰撞结构耐撞性能。针对电动车特殊质量分布和布置的结构耐撞性的该设计方法,能够应用于此类微型车结构耐撞性开发。

Based on the development of mini electric passenger car made by the Shanghai Automotive Industry Corporation Motor, in this paper, the mass allocation and the compartment packaging of the mini electric car are discussed and compared to that of traditional motor car. The load path and the available crash space were specially designed with respect to the concentrated large mass, and then the frontal structure was optimized through Comput Aidd Engineering （CAE） simulations. The results show that the car achieves good structure crashworthiness in full frontal and offset frontal impacts. The load path and structure design method described in this paper can be used for this kind of electric cars＇ development.