人车事故重建及AEB介入后行人损伤分析

Reconstruction of Vehicle-Pedestrian Accident and Analysis of Pedestrian Injury after AEB Intervention

摘要: 本文为确定AEB系统介入后能够避免碰撞或降低碰撞速度，从而降低行人的损伤情况。首先对184起行人正面碰撞事故重建后进行参数分析，其次利用PreScan和MATLAB/Simulink联合仿真搭建融合AEB模块的车辆模型，最终对模型进行了有效性验证。结果表明：在探测角度50˚、触发宽度10 m以及探测距离50 m的条件下，在车辆介入AEB后，汽车的平均碰撞速度由59.6 km/h下降到32.4 km/h，下降比率达到45.6%，行人的死亡风险降低了54.8%，同时将AIS3+损伤降低为AIS2−损伤的事故率由5%提高至70%。

Abstract: In this paper, to determine the intervention of AEB system can avoid collision or reduce the colli-sion speed, thus reducing the injury situation of pedestrians. Firstly, a parametric analysis of 184 reconstructed pedestrian frontal collisions was conducted, followed by a joint simulation using PreScan and MATLAB/Simulink to build a vehicle model incorporating the AEB module, and finally the validity of the model was verified. The results show that under the conditions of detection angle of 50˚, trigger width of 10m and detection distance of 50 m, the average crash speed of the vehicle decreases from 59.6 km/h to 32.4 km/h after the vehicle intervenes in AEB, with a decrease ratio of 45.6%, and the risk of pedestrian fatalities is reduced by 54.8%, while the accident rate of reducing AIS3+ damage to AIS2− damage is increased from 5% to 70%.