The invention discloses a pavement adhesion coefficient estimation method based on a Bayes classifier, and the method is based on the theory of the Bayes classifier and comprises the steps of determining the attribution of a road model through a data point set of the traction force of a certain side and the slip rate of an automobile during the driving of the automobile, dividing the collected overall data point set into a plurality of data subsets according to the traction force range, analyzing the newly collected data points, obtaining the prior probability of the data points, calculating the posterior probability of the data points, determining the attribution of the road model, and accurately calculating the adhesion coefficient of the road model according to the new road model. Through the above mode, by learning the prior probability of the Bayes subset, when a real-time data point arrives, the posterior probability of each traction subset interval is calculated, the road surface switching time can be calculated through the method, and the point set affiliation result after road surface switching can be obtained, so that the affiliation of the road model is determined; and the adhesion coefficient of the pavement model is obtained.

    本发明公开了一种基于Bayes分类器的路面附着系数估计方法,所述方法基于Bayes分类器的理论,通过汽车行驶时某一侧的牵引力与汽车滑移率的数据点集决定道路模型的归属,将收集到的整体数据点集依据牵引力范围划分成多个数据子集,对新采集的数据点分析并得出其先验概率后计算其后验概率,从而确定道路模型归属,最后根据新的道路模型精确计算该道路模型的附着系数。通过上述方式,本发明通过对Bayes子集先验概率的学习,当实时的数据点到来时,计算每个牵引力子集区间的后验概率,通过所述方法可以计算路面切换的时间以及得到路面切换后的点集归属结果,从而决定道路模型的归属,并得到路面模型的附着系数。


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    Title :

    Pavement adhesion coefficient estimation method based on Bayes classifier


    Additional title:

    基于Bayes分类器的路面附着系数估计方法


    Contributors:

    Publication date :

    2021-11-09


    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 / G06K Erkennen von Daten , RECOGNITION OF DATA



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