The invention relates to the technical field of road surface recognition, in particular to a road surface roughness grade recognition method and a suspension mode control method, device and system. The method comprises the following steps: acquiring a longitudinal acceleration signal of each wheel in a current period; performing pavement concave-convex identification based on the longitudinal acceleration signal, and calculating the proportion of the identified concave-convex pavement in the total duration in the current period to obtain an estimated concave-convex duration percentage; and according to each estimated concave-convex duration percentage, identifying the comprehensive pavement roughness level in the current period. By adopting the method, the pavement roughness grade identification requirement of a whole-series vehicle model can be met.

    本申请涉及路面识别技术领域,尤其是涉及一种路面粗糙等级识别方法、悬架模式控制方法、装置和系统。所述方法包括:获取当前周期内各个车轮的纵向加速度信号;基于所述纵向加速度信号进行路面凹凸识别,并计算识别出的凹凸路面所占总时长在所述当前周期内的占比,得到预估凹凸时长百分比;根据各个所述预估凹凸时长百分比,识别所述当前周期内的综合路面粗糙等级。采用本方法能够满足全系车型的路面粗糙等级识别需求。


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    Title :

    Road surface roughness grade identification method, suspension mode control method, device and system


    Additional title:

    路面粗糙等级识别方法、悬架模式控制方法、装置和系统


    Contributors:
    TAN KAIBO (author) / HUANG DAFEI (author) / LIU XIAOFEI (author) / TANG RUYI (author)

    Publication date :

    2024-04-09


    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 / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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