The invention relates to a front collision early warning method. The front collision early warning method comprises the following steps: S1, judging whether a target vehicle is a stable target or not; s2, judging whether the target vehicle and the vehicle are in the same lane or not according to the front wheel steering angle of the vehicle; s3, distance collision time is calculated, and if the distance collision time is smaller than a first preset value, an alarm is directly given; if the distance collision time is greater than or equal to a first preset value and less than a second preset value, an alarm condition is satisfied once, and if K alarm conditions are continuously and accumulatively satisfied, an alarm is given; if the distance collision time is greater than or equal to a second preset value, not giving an alarm; k is a positive integer. The invention provides a front collision early warning method, which can realize accurate alarm.
本发明涉及一种前方碰撞预警方法。该前方碰撞预警方法包括S1,判断目标车是否为稳定目标;S2,根据本车的前轮转向角的角度来判断目标车和本车是否在同一车道;S3,计算距离碰撞时间,若距离碰撞时间小于第一预设值,直接报警;若距离碰撞时间大于等于第一预设值且小于第二预设值,则满足一次报警条件,若连续累计满足K次报警条件,则报警;若距离碰撞时间大于等于第二预设值,则不报警;K为正整数。本发明提出了一种前方碰撞预警方法,能实现准确报警。
Front collision early warning method
一种前方碰撞预警方法
2022-03-04
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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