The invention discloses an opposite coming vehicle collision risk assessment method, which is used for a working condition that a driver unconsciously deviates from a lane and has a collision risk, and comprises the following steps: screening out a target vehicle meeting a specified condition from all sensing targets; selecting a target vehicle of which the collision time is less than or equal to a specified time threshold value, and calculating a predicted collision position variance of the vehicle and the selected target vehicle at the longitudinal collision time; the maximum value and the minimum value of the transverse distance between the vehicle and the selected target vehicle in the collision time are calculated, and a predicted collision position interval is obtained; and determining whether there is a collision risk between the vehicle and the target vehicle according to whether the probability of the predicted collision position in the predicted collision position interval is greater than a probability specified threshold. According to the invention, on the basis of the prior art, uncertainty of environmental perception is introduced as a judgment condition, so that the accuracy of collision risk assessment of the coming vehicle in the opposite direction is improved.
本发明公开了一种对向来车碰撞风险评估方法,其用于在驾驶员无意识偏离车道且有碰撞风险工况,包括:筛选出所有感知目标中符合指定条件的目标车辆;选择出碰撞时间小于等于时间指定阈值的目标车辆,计算自车和选择出目标车在纵向碰撞时间的预测碰撞位置方差;计算碰撞时间自车与选择出目标车横向距离的最大值和最小值,获得预测碰撞位置区间;根据预测碰撞位置在预测碰撞位置区间内的概率是否大于概率指定阈值决定自车与目标车是否存在碰撞风险。本发明在现有技术基础上将环境感知的不确定引入作为判断条件,进而提高对向来车碰撞风险评估的准确性。
Opposite coming vehicle collision risk assessment method and system
对向来车碰撞风险评估方法及系统
2023-01-31
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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