车辆前向碰撞预警算法研究综述

A Survey of the Forward Collision Warning Algrithms

前向碰撞预警算法越来越多地被用于智能汽车的纵向驾驶辅助系统,它可以通过向驾驶员传递预警信号来减少追尾事故的可能性。文章按照预警阈值的类型将前向碰撞预警算法分为安全时间逻辑算法和安全距离逻辑算法,并分别介绍了两类算法的研究现状。此外,为了降低前向碰撞预警算法的误报率,预警阈值应该随驾驶环境和驾驶人特征实时变化,因此,文章也概括和介绍了调整预警阈值的自适应方法。

Forward collision warning system is increasingly being used in longitudinal driver assistance systems in intelligent vehicles to reduce the likelihood of a rear-end collision by sending warning signals to the driver. In this paper, the forward collision warning algorithms are divided into safety time logic algorithm and safety distance logic algorithm according to the types of warning threshold, and the research status of the two algorithms is introduced respectively. In addition, in order to reduce the false alarm rate of the forward collision warning algorithm, the warning threshold should change with the driving environment and driver characteristics in real time. The adaptive method of adjusting the warning threshold are also summarized and introduced.