某换电电动汽车侧面柱碰的动力电池保护

Power Battery Protection for Side Pole Impact of an Electric Vehicle

为解决侧面柱碰换电电动汽车车身对动力电池的保护问题,使用ANSA软件建立换电电动汽车整车侧面柱碰有限元仿真模型,根据E-NCAP柱碰工况设置边界条件,应用先进工艺与材料设计优化该换电电动汽车门槛结构,并在DYNA软件中进行计算;通过对比发现门槛内填充铝型材,门槛侵入量减少,动力电池包碰撞加速度减小。研究表明,设计的门槛结构可有效提高电动汽车柱碰时动力电池包的安全性,为电动汽车保护动力电池包设计提供了参考依据。

In order to solve the problem of power battery protection by electric vehicle body during side pole impact, the ANSA software is used to establish the finite element simulation model of the electric vehicle side pole impact. According to the ENCAP pole impact condition, the boundary conditions are set, the structure of the electric vehicle threshold is optimized by using advanced technology and material design, and the calculation is carried out in DYNA software. Through the comparison,it is found that after the aluminum profile is filled into the threshold, the threshold intrusion is reduced, as well as the impact acceleration of the power battery pack. The research shows that the design of the threshold structure can effectively improve the safety of the power battery pack when the side pole impact occurs, which provides a reference for the protection design of power battery pack of the electric vehicle.