The invention provides an emergency collision avoidance method and system for predicting the collision overlapping rate of a two-wheeled vehicle, and aims at different collision points of the two-wheeled vehicle by designing an accurate collision time TTC threshold value, adopting a TTC compensation method with different collision overlapping rates and a braking collision avoidance and steering collision avoidance arbitration selection method. The AEB emergency braking or emergency steering avoidance function is triggered in time under the scene that the two-wheeled vehicle traverses, and the two-wheeled vehicle traversing emergency collision avoidance function is achieved. Aiming at the crossing scene of the two-wheeled vehicle, the collision risk is calculated in real time, and the collision overlapping rate is predicted, so that the TTC threshold value is adjusted in time, accurate control over longitudinal braking is achieved, and the two-wheeled vehicle is prevented from being collided. Emergency collision avoidance is achieved through transverse and longitudinal combined control, and serious consequences of vehicle collision and casualties are avoided.
本发明提供了一种用于两轮车碰撞重叠率预测的紧急避撞方法和系统,针对两轮车的不同碰撞点,通过设计精准的碰撞时间TTC阈值,采用不同碰撞重叠率的TTC补偿方法、制动避撞和转向避撞仲裁选取方法,保证在两轮车横穿的场景下及时触发AEB紧急制动或紧急转向避让功能,实现两轮车横穿紧急避撞功能。本发明针对两轮车的横穿场景,通过实时计算碰撞风险、预测碰撞重叠率,从而及时调整TTC阈值,实现了纵向制动精准控制,使得两轮车避免被碰撞。本发明通过横向和纵向联合控制实现了紧急避撞,避免了车辆碰撞和人员伤亡的严重后果。
Emergency collision avoidance method and system for predicting collision overlapping rate of two-wheeled vehicle
一种用于两轮车碰撞重叠率预测的紧急避撞方法和系统
27.08.2024
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 |
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