The invention discloses a self-adaptive cruise control method and system, and the method comprises the steps: obtaining a set vehicle speed set by a driver when a self-adaptive cruise function is started; calculating the actual speed of the automobile according to the automobile wheel speed; whether the absolute value of the difference value between the set vehicle speed and the actual vehicle speed is larger than a first threshold value or not is judged; if the absolute value of the difference value between the set vehicle speed and the actual vehicle speed is larger than a first threshold value, calculating the cruise acceleration through a PID control decision algorithm according to the difference value between the set vehicle speed and the actual vehicle speed; and performing adaptive cruise control according to the cruise acceleration. The problems that in the prior art, the stable cruising speed cannot be kept for a long time, and stable and reliable cruising experience cannot be brought to customers can be solved. Besides, on the premise that hardware cost is not increased, an ACC system experienced by a user is more stable and reliable, and good application and popularization value is achieved.

    本发明公开了一种自适应巡航控制方法及系统,该方法包括:当自适应巡航功能开启时,获取驾驶员设定的设定车速;根据汽车轮速计算汽车的实际车速;判断所述设定车速与所述实际车速的差值的绝对值是否大于第一阈值;若所述设定车速与所述实际车速的差值的绝对值大于第一阈值,则通过PID控制决策算法利用所述设定车速与所述实际车速的差值计算巡航加速度;根据所述巡航加速度进行自适应巡航控制。本发明能够解决现有技术无法长时间保持稳定的巡航车速,不能给客户带来稳定可靠的巡航体验的问题。此外,本发明能够在不增加硬件成本的前提下,使用户体验到的ACC系统更加稳定可靠,具有良好的推广应用价值。


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    Title :

    Self-adaptive cruise control method and system


    Additional title:

    自适应巡航控制方法及系统


    Contributors:
    SHEN KAI (author) / LIU WEIDONG (author) / WANG AICHUN (author) / HUANG SHAOTANG (author)

    Publication date :

    2022-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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