The invention provides a forward collision early warning method and a forward collision early warning system. The forward collision early warning method comprises the steps: detecting yaw velocity information of a vehicle; when it is determined that the vehicle is in a turning state according to the yaw velocity information, adjusting a monitoring range of forward collision to a specified threshold value; and generating a forward collision alarm signal and giving an alarm if the collision time and/or the time headway between a forward obstacle and the vehicle meet/meets an early warning condition within the specified threshold. According to the method, the monitoring range of forward collision is adjusted, so that normal road equipment detected by a sensor in the distance is prevented frombeing regarded as an obstacle about to collide as much as possible, false alarms caused by forward collision early warning during turning are reduced, and the early warning accuracy is improved.

    本申请提供一种前向碰撞预警方法和前向碰撞预警系统。所述方法包括:检测车辆的横摆角速度信息;当根据横摆角速度信息确定车辆处于转弯状态时,将前向碰撞的监测范围调整至指定阈值;在上述指定阈值内,若前向障碍物与车辆之间的碰撞时间和/或车头时距满足预警条件时,产生前向碰撞报警信号并进行报警。上述方法,通过调整前向碰撞的监测范围,尽量避免远处被传感器探测的正常道路设备被视作即将碰撞的障碍物,减少转弯时前向碰撞预警引起的误报,提升了预警准确性。


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    Title :

    Forward collision early warning method and system


    Additional title:

    前向碰撞预警方法和系统


    Contributors:
    LI ANPEI (author) / WU ZHONGWEN (author) / ZHANG JIANWEI (author) / CHEN GUOCHUN (author)

    Publication date :

    2020-04-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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