A controller processes data from one or more sensors of a vehicle subsystem. The processing includes smoothing the data and calculating an average value of the data. The controller identifies a transition point in the processed data at which a moving average value of the data is less than the average value by a predetermined amount indicative of the trend. The controller selects a segment of the processed data after the transition point, detects a trend in the segment using regression, and extrapolates the detected trend to reach a predetermined fault threshold. The controller predicts a failure of the subsystem based on the slope of the extrapolated trend and provides an indication of the prediction based on the slope to schedule services to the subsystem.

    控制器处理来自车辆子系统的一个或多个传感器的数据。该处理包括平滑数据和计算数据的平均值。控制器识别经处理的数据中的转变点,在所述转变点处,数据的移动平均值比平均值小指示趋势的预定量。控制器选择经处理的数据在转变点之后的片段,使用回归检测该片段中的趋势,并且对检测到的趋势进行外推以达到预定的故障阈值。控制器基于外推趋势的斜率预测子系统的失效,并基于斜率提供预测的指示,以调度对所述子系统的服务。


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    Titel :

    Vehicle fault diagnosis and prediction using automatic data segmentation and trend analysis


    Weitere Titelangaben:

    使用自动数据分割和趋势分析的车辆故障诊断和预测


    Beteiligte:
    DU XINYU (Autor:in) / YANG ZHIWEI (Autor:in) / SANCHEZ JOSHUA J (Autor:in) / KERR KATHLEEN MARIE (Autor:in) / ZHANG YILU (Autor:in) / NOWAK MATTHEW MICHAEL (Autor:in)

    Erscheinungsdatum :

    2022-08-02


    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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