The invention provides a pure electric vehicle whole vehicle mass estimation method based on a neural network, and the method comprises the steps: collecting real vehicle operation data of a pure electric vehicle, and taking the real vehicle operation data as neural network training data; taking the current driving motor rotating speed and the driving motor torque as input of a neural network; obtaining an interval in which the mass of the whole automobile is located through the output of the neural network; determining an initial value of the whole automobile mass based on the interval of the whole automobile mass; and according to the initial value of the mass of the whole automobile, estimating the specific value of the mass of the whole automobile by adopting a variable forgetting factor recursive least square method. According to the method, the convergence speed of the recursive least square algorithm is higher through the quality initial value calculated through the neural network, and reliable quality parameters can be provided for the whole vehicle within shorter time.

    本申请提供一种基于神经网络的纯电动汽车整车质量估算方法,包括:采集纯电动汽车的实车运行数据,将所述实车运行数据作为神经网络训练数据;将当前驱动电机转速和驱动电机扭矩作为神经网络的输入;通过所述神经网络的输出获取汽车整车质量所在区间;基于所述汽车整车质量所在区间确定汽车整车质量的初值;根据所述汽车整车质量的初值,采用可变遗忘因子递推最小二乘法估算汽车整车质量的具体值。本申请由神经网络计算的质量初值使得递推最小二乘算法收敛速度更快,能够在更短的时间内为整车提供可靠的质量参数。


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    Title :

    Pure electric vehicle mass estimation method based on neural network


    Additional title:

    一种基于神经网络的纯电动汽车整车质量估算方法


    Contributors:
    MENG RONGGE (author) / WANG PENGXIANG (author) / SHI QIANG (author) / ZHANG YAOFENG (author) / WANG HAO (author) / SHU HANG (author)

    Publication date :

    2022-05-06


    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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen



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