The invention provides a backward collision early warning method and system, and relates to the technical field of pure electric vehicle intelligent driving systems.The method comprises the steps that a vehicle backward collision early warning area is determined, and a target object in the vehicle backward collision early warning area is detected in real time; the moving speed of a target object appearing in the early warning area and the speed relative to the vehicle are obtained, and the pre-collision time is judged according to the moving speed of the appearing target object and the speed relative to the vehicle; according to the judged pre-collision time, early warning is sent to a driver in the vehicle and a driver of a target vehicle outside the vehicle; wherein the early warning time is associated with the speed of the vehicle and the relative speed of the vehicle and the target vehicle, and when the relative speed of the vehicle and the target vehicle reaches a preset range, and the backward pre-collision early warning time conforms to a preset early warning time range and conforms to a vehicle speed relation graph of the vehicle and the target vehicle, early warning is given out. According to the invention, the effective reminding and response time to the rear driver is improved.
本公开提供了一种后向碰撞预警方法及系统,涉及纯电动汽车智能驾驶系统技术领域,方法包括确定车辆后向碰撞预警区域,实时检测车辆后向碰撞预警区域目标物;获取预警区域内出现的目标物移动速度以及相对于本车的速度,根据出现的目标物移动速度、相对于本车的速度判断预碰撞时间;根据判断的预碰撞时间分别向车内驾驶员以及车外目标车辆的驾驶员发出预警;其中,预警时间于本车速度和本车与目标车的相对速度关联,当本车与目标车辆的相对车速达到预设范围、且后向预碰撞预警时间符合预设的预警时间范围以及符合本车与目标车辆车速关系图时,发出预警。本公开提高对后方驾驶员的有效提醒和反应时间。
Backward collision early warning method and system
一种后向碰撞预警方法及系统
2024-02-09
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 / 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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