The invention discloses a vehicle rear-end collision prevention method and system. The method comprises the steps that when a vehicle is braked, the braking deceleration and the braking pedal stroke of the vehicle are obtained in real time, and vehicle type information, the running speed relative to the vehicle and the distance relative to the vehicle of a rear vehicle are obtained in real time; if the driving speed of the rear vehicle relative to the vehicle is smaller than zero, the method is ended, and otherwise, the limit braking deceleration of the rear vehicle is obtained according to the vehicle type information of the vehicle, the braking deceleration and the brake pedal travel of the vehicle and the vehicle type information of the rear vehicle; according to the running speed of the rear vehicle relative to the vehicle and the limit braking deceleration of the rear vehicle, the limit safety distance between the rear vehicle and the vehicle is calculated; and according to the limit safety distance and the distance between the rear vehicle and the vehicle, judging whether a rear-end collision risk exists or not, and if yes, giving an alarm. The method can consider the influence of environmental factors on the braking of the rear vehicle, accurately assesses the risk of rear-end collision of the vehicle, and improves the effectiveness of alarm reminding.
本发明公开了一种车辆防追尾方法及系统。该方法包括:在本车制动时,实时获取本车的制动减速度和制动踏板行程,并实时获取后车的车型信息、相对本车的行驶速度和相对本车的距离;若后车相对本车的行驶速度小于零,则结束该方法,否则根据本车的车型信息、制动减速度和制动踏板行程,以及后车的车型信息,获取后车的极限制动减速度;根据后车相对本车的行驶速度,以及后车的极限制动减速度,计算后车与本车的极限安全距离;根据极限安全距离和后车相对本车的距离,判断是否面临追尾风险,若是则发出警报。能够考虑环境因素对后车制动的影响,较为准确的评估本车被追尾的风险,提高警报提醒的有效性。
Vehicle rear-end collision prevention method and system
一种车辆防追尾方法及系统
2023-03-31
Patent
Elektronische Ressource
Chinesisch
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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