The invention discloses an anti-collision early warning method based on fuzzy logic, and the method comprises the steps: carrying out the modeling of the uncertainty of the transverse dynamics of a driver through a fuzzy logic method, and obtaining a transverse dynamics membership coefficient; and on the basis, weighting the one-dimensional pre-collision time by using a membership coefficient to obtain a two-dimensional road safety index FL-iTTC. And then the proposed measurement is used as an alarm basis, and the alarm threshold value of the anti-collision system is calibrated through natural driving data. The method provided by the invention can accurately identify potential collision events in complex traffic scenes, especially in deceleration and lane changing scenes in which multiple lanes are designed, and has significant positive significance in road traffic safety and anti-collision early warning system design.
本发明公开了一种基于模糊逻辑的防碰撞预警方法,首先通过模糊逻辑方法对驾驶人横向动力学的不确定性进行建模,得到横向动力学隶属度系数。在此基础上,利用隶属度系数,对一维的预碰撞时间进行加权得到二维道路安全指标FL‑iTTC。接着以所提出的测度为报警依据,通过自然驾驶数据对防碰撞系统报警阈值进行标定。所提出的方法能够在复杂交通场景,尤其是设计多车道的减速,变道场景中准确识别潜在碰撞事件,对道路交通安全和防碰撞预警系统设计具有显著的积极意义。
Anti-collision early warning method based on fuzzy logic theory
一种基于模糊逻辑理论的防碰撞预警方法
2023-06-23
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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