轨迹优化方法在道路交通事故再现中的应用

Application of Trajectories Optimization Method in Accident Reconstruction

在对运动中的车辆进行动力学分析的基础上,建立了车辆运动及碰撞过程中的动力学模型,模拟车辆在碰撞前、碰撞过程及碰撞后的运动轨迹,提出了依据事故现场的路面轮胎印迹和对车辆运动轨迹的模拟,用轨迹优化的方法实现交通事故在计算机上的三维模拟再现。并通过对一典型的交通事故案例的模拟分析和结果比较,验证了该方法对有清晰轮胎印迹的交通事故分析的有效性,从而为该类事故的分析处理提供了有效的方法。

The trajectory and collision models presented here were based on vehicle dynamics analysis. They were used to predict the aD kinematics of a vehicle＇s pre-and post-impact trajectory. According to the tire marks left in the accident scene and the simulated trajectories, trajectories optimization method was introduced for accident reconstruction. Applying this method in simulation analysis and result comparison to a typical traffic accident, the results were proved to be accurate, and it could provide a scientific foundation for accident judgments. It＇s an effective method for accidents with tire marks left in the accident scene.