基于新碰撞法规要求的轻型汽车安全性能设计

Safety Performance Design of Light Vehicles Based on New Crash Regulations

为了满足国家车辆正碰法规要求,分别提出了2种方案对现有某款轻型汽车进行碰撞安全性能改进。一是增加主驾驶和副驾驶安全气囊,该方案通过法规的概率较高,但是改动比较多,开发费用高,开发周期长;二是优化现有约束系统,不增加安全气囊,该方案通过法规存在一定风险,对技术开发水平要求较高,但是这种方案涉及其他系统少,开发费用低,开发周期短。文章通过多轮仿真分析与零部件试验验证,最终确定了第2种优化方案,使碰撞试验结果达到了预期目标,满足了国家车辆碰撞法规要求。

In order to meet the requirements of Vehicle Front Crash Regulations of China, two schemes are proposed to improve the crash safety performance of a certain light vehicle. One is to add airbags for the main driver and the co-driver, which has a high probability of passing laws and regulations, but has many changes, high development cost and long development cycle. The second is to optimize the existing restraint system without adding air bags, which has certain risks to pass laws and regulations and requires high technical development level, but involves less other systems, has low development cost and short development cycle. Through multi -round simulation analysis and parts test verification, the second optimization scheme is finally determined, which makes the crash test result reach the expected goal and meets the national vehicle crash regulations.