基于驾驶员紧急制动行为特征的危险估计算法

发布时间：2018-03-24 21:33

本文选题：主动安全　切入点：汽车避撞系统　出处：《同济大学学报(自然科学版)》2014年01期

【摘要】：基于真实交通工况下驾驶员的紧急制动行为特征,建立了一种新的危险估计算法用于汽车避撞系统的控制策略开发.通过在车辆上安装车辆行驶记录仪采集了目标区域内驾驶员的真实交通场景;对采集到的交通场景进行人工筛选,并按照美国高速公路安全管理局(NHTSA)的分类方法进行了分类,得到了6种典型的危险工况;通过视频图像处理等方法对典型危险工况下驾驶员的紧急制动行为进行了分析,得到了驾驶员紧急制动起始点的碰撞时间tTTC值以及车辆在紧急制动过程中的平均制动减速度,并利用这些数据建立了基于碰撞时间倒数tiTTC和期望减速度areq的危险估计算法.这种危险估计算法能够同时考虑两车快速靠近以及稳定跟车工况,并与驾驶员在真实交通环境中的紧急制动行为相对应.
[Abstract]:Based on the characteristics of drivers' emergency braking behavior under real traffic conditions, A new risk estimation algorithm is established to develop the control strategy of vehicle collision avoidance system. The real traffic scene of the driver in the target area is collected by installing the vehicle travel recorder on the vehicle. The traffic scenes collected were manually screened and classified according to the classification method of National Highway Safety Administration (NHTSA), and six typical dangerous working conditions were obtained. The emergency braking behavior of the driver under typical dangerous conditions is analyzed by video image processing. The tTTC value of the driver's crash time at the starting point of the emergency braking and the average braking speed of the vehicle during the emergency braking are obtained. Using these data, a hazard estimation algorithm based on collision time reciprocal tiTTC and expected deceleration areq is established. And corresponding to the driver's emergency braking behavior in the real traffic environment.
【作者单位】：同济大学汽车学院;吉利汽车研究院有限公司;
【分类号】：U491.254

【共引文献】