有利于行人保护的可逆抬升式发动机罩研究  

The Research on Reversible Pop-up Engine Hood for Pedestrian Protection

作　　者：苗强[1] 高卫民[2] 朱西产[1] 张轶川[1] 刘军勇[2] 

机构地区：[1]同济大学 [2]上海汽车集团股份有限公司技术中心

出　　处：《汽车技术》2009年第12期1-4,共4页Automobile Technology

摘　　要：建立了所研究车型前端车身的有限元模型,按照欧洲行人保护法规2003/102/EC的要求,对其行人头部保护性能进行了仿真评估,并通过实车试验验证了仿真模型的有效性。通过对该车型的Euro-NCAP行人头部保护性能进行仿真评估,确认其风挡玻璃下边缘和A柱下端是对头部造成伤害的主要区域。设计了一种主动式发动机罩,中央控制单元可以在人-车碰撞发生前约0.4s触发抬升机构,向后上方抬升发动机罩增加其吸能空间,同时可覆盖风挡玻璃下边缘和A柱下端区域。仿真结果表明,该装置能有效改善行人头部保护效果。A FE model of the frontal body of the car researched was built and simulating evaluation was carried out on pedestrian head protection performance and validated with test carried out in accordance with the requirements of Directive 2003/102/EC.Then the simulation analysis of Euro-NCAP head assessment was performed,identifying the bottom area of the windshield and the lower part of pillar A are the main areas to cause head injury.Therefore an active engine hood was designed,in which the central control unit ...

关 键 词：发动机罩 可逆抬升式 行人保护 

分 类 号：U463.5[机械工程—车辆工程]