The invention relates to the technical field of intelligent traffic driving behavior analysis, and discloses a front collision early warning method and system based on the driving style of a driver. The method comprises the following steps: acquiring the vehicle speed, the target relative speed and the target relative distance in real time, calculating the time required for collision between the vehicle and a front vehicle according to the target relative distance and the target relative speed, setting a fuzzy rule in combination with the driving style of a driver, acquiring a safe distance according to the vehicle following time distance and the fuzzy rule, and inputting the safe distance into a vehicle kinematic model. And obtaining a threshold value of time required for collision between the vehicle and the front vehicle, and if the time required for collision between the vehicle and the front vehicle is smaller than the threshold value of the time required for collision between the vehicle and the front vehicle, triggering front collision early warning. And the safe distance is determined according to the driving style of the driver, so that the safety is ensured, and the driving comfort is improved. When the style of the driver is judged through the fuzzy algorithm, the input and the output are both values, the calculation efficiency is improved, and the safety of front collision early warning is further improved.
本申请涉及智能交通驾驶行为分析技术领域,公开了一种基于驾驶员驾驶风格的前碰撞预警方法和系统。实时获取自车车速、目标相对速度以及目标相对距离,根据目标相对距离和目标相对速度,计算自车与前车发生碰撞所需时间,结合驾驶员驾驶风格设定模糊规则,由跟车时距和模糊规则获得安全距离,将安全距离输入车辆运动学模型,获得自车与前车发生碰撞所需时间的阈值,若自车与前车发生碰撞所需时间小于自车与前车发生碰撞所需时间的阈值,则触发前碰撞预警。安全距离的确定依据驾驶员驾驶风格,既保证了安全,又提升了驾驶舒适感。模糊算法判断驾驶员风格时,输入和输出均为一个值,提高了计算效率,进一步提升了前碰撞预警的安全性。
Front collision early warning method and system based on driving style of driver
一种基于驾驶员驾驶风格的前碰撞预警方法和系统
2024-04-05
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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