The invention discloses a road adhesion coefficient identification method, a storage medium and a system, and the method comprises the following steps: S1, comparing the displacements of a brake pedal at two moments before and after, and judging whether the brake pedal is stepped down or not; s2, the working state of an ESP system is read, and if a brake pedal is stepped down and the ESP system does not work, the step S3 is executed; s3, a following wheel speed which changes along with the change trend of the original wheel speed of the corresponding wheel at a fixed acceleration is established for each wheel, and the value when the following wheel speed is changed from acceleration to deceleration is a following wheel speed peak value; s4, the ratio of the difference value of the two adjacent following wheel speed peak values of each wheel to the interval time is calculated, and then the ratio is multiplied by a preset conversion coefficient to obtain the road adhesion coefficient of each wheel; and S5, calculating the road adhesion coefficient of the road according to the road adhesion coefficient values of the four wheels. According to the method, the pavement adhesion coefficient can be independently obtained without depending on an ABS supplier, and research and development behaviors of other system component suppliers are assisted.

    本发明公开了一种路面附着系数识别方法、存储介质及系统,其中方法包括如下步骤:S1:比较前后两个时刻的制动踏板位移,判断制动踏板是否被踩下;S2:读取ESP系统的工作状态,若制动踏板被踩下且ESP系统未工作,则进入步骤S3;S3:为每个车轮建立一个以固定加速度,跟随对应车轮的原始轮速变化趋势而变化的跟随轮速,将跟随轮速由加速变为减速时的值为跟随轮速峰值;S4:计算每个车轮两次相邻跟随轮速峰值的差值与间隔时间的比值,再将比值乘以预设的转换系数获得每个车轮的路面附着系数;S5:根据四个车轮的路面附着系数值,计算道路的路面附着系数。上述方法可以不依靠ABS供应商单独获得路面附着系数,辅助其他系统部件供应商的研发行为。


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    Titel :

    Road adhesion coefficient identification method, storage medium and system


    Weitere Titelangaben:

    路面附着系数识别方法、存储介质及系统


    Beteiligte:
    WANG YA (Autor:in)

    Erscheinungsdatum :

    2023-03-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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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