基于不确定度理论的汽车与自行车侧面碰撞速度估算

基于不确定度理论,针对汽车-自行车侧撞事故的速度计算模型建立了相应的不确定度分析方法.结合事故再现模型,运用方差合成理论并考虑自行车抛距与行人抛距间的相关性,将各标准不确定度分量进行合成,最终得到车速估算的合成标准不确定度和扩展不确定度,由此给出较合理的车速估算结果.通过一个典型事故分析案例,验证了该方法的正确性.

Speed Estimation for Vehicle-Bicycle Side Impact Accident Based on the Uncertainty Theory

Based on the uncertainty theory,a corresponding uncertainty analysis method for speed calculation model for vehicle-bicycle side collision accident is set up.Combining with accident reconstruction model,applying the theory of synthesis of variance and taking into consideration the correlation between thrown distances of bicycle and pedestrian,all standard uncertainty components are combined to finally obtain the resulting standard uncertainty and extended uncertainty for vehicle speed estimation,with which ...