The invention discloses a new energy vehicle endurance mileage online prediction method and system, and belongs to the technical field of vehicle endurance prediction, and the method comprises the steps: obtaining a hundred-kilometer energy consumption average value of each SOH interval between a starting SOH and a preset termination SOH of a plurality of vehicles, and forming a hundred-kilometer energy consumption matrix A; taking a characteristic representative number for each column of SOH values of A to form a hundred-kilometer energy consumption characteristic matrix B; if the SOH value of the battery pack of the target vehicle is smaller than a preset SOH value, counting a hundred-kilometer energy consumption average value of the target vehicle from the initial SOH to the current SOH to obtain a target hundred-kilometer energy consumption matrix D, obtaining a difference value between the target hundred-kilometer energy consumption matrix D and B to obtain a use characteristic matrix E, fitting to obtain a use characteristic value F, and correcting B to obtain a second target hundred-kilometer energy consumption prediction matrix C2; and obtaining the current or predicted total endurance mileage of the target vehicle according to C1 or C2. According to the method, the endurance mileage of the new energy vehicle in the pure electric mode can be accurately predicted, the new energy vehicle is prevented from lying down in the driving process, and the vehicle using anxiety of a user is relieved.

    本申请公开了一种新能源汽车续航里程在线预测方法及系统,属于车辆续航预测技术领域,该方法包括:获取多辆车从起始SOH至预设终止SOH之间每个SOH间隔的百公里能耗平均值,形成百公里能耗矩阵A;对A的每列SOH值取特征代表数,形成百公里能耗特征矩阵B;若目标车辆的电池包SOH值小于预设SOH值,则统计目标车辆从起始SOH至当前SOH的百公里能耗平均值,得到目标百公里能耗矩阵D,并与B取差值得到使用特征矩阵E,拟合得到使用特征值F,修正B得到第二目标百公里能耗预测矩阵C2;根据C1或C2得到目标车辆的当前或预测总续航里程。该方法能够准确预测新能源汽车纯电模式下的续航里程,避免新能源汽车行驶过程中趴窝,缓解用户的用车焦虑。


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    Title :

    New energy automobile endurance mileage online prediction method and system


    Additional title:

    一种新能源汽车续航里程在线预测方法及系统


    Contributors:
    TANG TAOFENG (author) / YANG TING (author) / ZHANG LIN (author)

    Publication date :

    2024-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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