The invention provides a vehicle forward collision early warning method, which is used for performing forward collision early-warning monitoring on forward far vehicles on the same lane and/or adjacent lanes by a main vehicle through a C-V2X technology in a road driving process; and the method comprises the following steps: according to V2I information of a road side unit and V2V information of forward far vehicles on the same lane and/or adjacent lanes providing steering signals, detecting a collision risk of forward far vehicles in the same lane and/or an adjacent lane providing a steering signal by a main vehicle; if the collision risk exists, calculating the collision time and screening the minimum collision time; acquiring the current road driving condition and a corresponding forward collision probability and collision time correlation curve, searching the forward collision probability in the correlation curve according to the minimum collision time, and after the forward collision probability is determined to be larger than or equal to a corresponding preset threshold value, sending out forward collision early warning to a driver of the main vehicle. According to the invention, based on the C-V2X technology, the target vehicle in various road shapes is accurately identified to realize forward collision early warning, and the driving safety of the vehicle is greatly improved.
本发明提供一种车辆前向碰撞预警方法,用于主车在道路行驶过程中通过C‑V2X技术对同车道和/或相邻车道的前向远车进行前碰预警监测,包括:主车根据路侧单元的V2I信息、同车道和/或提供转向信号的相邻车道前向远车的V2V信息,检测同车道和/或提供转向信号的相邻车道前向远车的碰撞风险;若存在碰撞风险则算出碰撞时间并筛选最小的碰撞时间;获得当前道路行驶工况及对应的前向碰撞概率与碰撞时间关联曲线,并根据最小碰撞时间,在关联曲线中查找前向碰撞概率,待判定前向碰撞概率大于等于相应预设阈值后,向主车驾驶员发出前向碰撞预警。实施本发明,基于C‑V2X技术对各种道路形状下目标车辆的准确识别来实现前向碰撞预警,大大提高车辆的行驶安全性。
Vehicle forward collision early warning method and device
一种车辆前向碰撞预警方法及装置
2021-11-23
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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