The invention relates to the technical field of vehicle control, in particular to a vehicle self-adaptive cruise control method and device for rainy days. The control method comprises the following steps: firstly, determining a distance measurement error of a radar according to radar echo signal power, rain clutter signal power and receiver noise power; then, according to the relative distance and the relative speed between the current vehicle and the front vehicle after filtering and the distance measurement error, a safe vehicle following distance model is constructed; determining a vehicle following control system model of the current vehicle according to the control input quantity, the safe vehicle following distance model and the kinematics relation between the vehicles; determining the optimal control input quantity of the car following control system model; and finally, performing adaptive cruise control on the current vehicle according to the optimal control input quantity. It can be seen that the vehicle control system model constructed in the invention considers noise such as distance measurement errors of the radar in rainy days, so that adaptive cruise control of the vehicle is more accurate, and potential safety hazards in rainy days are avoided.

    本发明涉及车辆控制技术领域,尤其涉及一种用于雨天的车辆自适应巡航控制方法和控制装置。该控制方法包括,首先根据雷达回波信号功率、雨杂波信号功率以及接收机噪声功率确定雷达的距离测量误差;然后根据滤波后的当前车辆与前车之间的相对距离和相对速度、距离测量误差构建安全跟车距离模型;根据控制输入量、安全跟车距离模型以及车辆间的运动学关系,确定当前车辆的跟车控制系统模型;确定跟车控制系统模型的最优控制输入量;最后根据最优控制输入量对所述当前车辆进行自适应巡航控制。可以看出,本申请构建的车控制系统模型考虑了下雨天时雷达的距离测量误差等噪声,使得对车辆的自适应巡航控制更加精确,避免了下雨天的安全隐患。


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    Titel :

    Vehicle self-adaptive cruise control method and device for rainy days


    Weitere Titelangaben:

    用于雨天的车辆自适应巡航控制方法和控制装置


    Beteiligte:
    ZHAO XIANGMU (Autor:in) / WANG ZHEN (Autor:in) / HOU RUIYU (Autor:in) / HUI FEI (Autor:in) / KUANG RUIMIN (Autor:in) / CHENG JINGJUN (Autor:in) / PENG CHENG (Autor:in) / LIU PENGCHAO (Autor:in) / CHEN JIANQUAN (Autor:in) / DAI BO (Autor:in)

    Erscheinungsdatum :

    2024-04-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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