A vehicle emergency braking control method comprises the steps that firstly, the current lane width W and the azimuth angle, the relative speed, the relative acceleration and the relative distance of all target vehicles in front relative to the vehicle are obtained in real time; 2, according to the current lane width W and the relative distance and azimuth angle of each front target vehicle relative to the own vehicle, whether the most dangerous vehicle target exists in each front target vehicle is judged in real time; if the most dangerous vehicle target does not exist at the moment, the step 1 is returned; if the most dangerous vehicle target exists at the moment, the most dangerous vehicle target is selected, and then the step 3 is executed; 3, calculating the collision time TTC in real time according to the relative speed, relative acceleration and relative distance of the selected most dangerous vehicle relative to the own vehicle; and step 4, carrying out braking control on the vehicle according to the collision time TTC. According to the design, the most dangerous vehicle target can be quickly and accurately selected, braking control is carried out on the vehicle according to the collision time TTC, and rear-end collision accidents are avoided.
一种车辆紧急制动控制方法,包括:步骤一、实时获取当前的车道宽度W以及前方各目标车辆相对于自车的方位角、相对速度、相对加速度、相对距离;步骤二、根据当前的车道宽度W以及前方各目标车辆相对于自车的相对距离、方位角实时判断前方各目标车辆中是否存在最危险车辆目标:若此时不存在最危险车辆目标则返回步骤一;若此时存在最危险车辆目标,则选定最危险车辆目标,随后进入步骤三;步骤三、根据被选定的最危险车辆相对于自车的相对速度、相对加速度与相对距离实时计算碰撞时间TTC;步骤四、根据碰撞时间TTC对自车进行制动控制。本设计能够快速、准确的选定最危险车辆目标并根据碰撞时间TTC对自车进行制动控制,避免追尾事故。
Vehicle emergency braking control method
一种车辆紧急制动控制方法
2022-12-09
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 |
Vehicle emergency braking system, vehicle emergency braking method, vehicle, and medium
Europäisches Patentamt | 2024
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