纯电动轿车侧面碰撞安全性能提升

摘要

The performance target of lateral collision appraisement is expatiated, and three representative B-pillar deformation mode on lateral collision is presented. For the difference of electric car and traditional car, the distinctness of body mar and dummy injury during lateral collision are analyzed. By concretely lateral collision analysis and sample car validation for a electric car, the bad B-pillar deformation mode is indicated, and it hurt dummy's chest easily. After anatomizing body structure, the improve project is presented, strengthening the middle and top part of B-pillar, weakening its bottom. Again simulation analysis, the rationality of the improve project is confirmed.%阐述了侧面碰撞评价性能指标，并给出了侧碰过程中典型的3种B柱变形模式。针对电动车与传统车的区别，分析了电动车与传统车在侧碰过程中车身损毁程度的不同和对假人造成伤害的不同。通过对某款电动车具体的侧碰分析和实车验证，指出了其B柱变形模式不好，容易对假人胸部造成伤害，接着剖析车身结构，提出改善方案，对B柱中上部结构进行加强，对其底部进行减弱。再次进行仿真分析验证，证实了改进方案的合理性。