The invention provides a method and a device for calculating the remaining mileage of an electric vehicle. The method comprises the following steps: calculating the running energy consumption EgyCnsDrv of the vehicle; the actual remaining mileage RngDrvIni is calculated; the reference mileage energy consumption EgyCnsRef is obtained; calculating a reference remaining mileage RngDrvRef; the maximum value of the actual remaining mileage RngDrvIni and the reference remaining mileage RngDrvRef is obtained, and a remaining mileage original value RngDrvRaw is obtained; and correcting the original value RngDrvRaw of the remaining mileage to obtain a final value RngDrvDisp of the remaining mileage. According to the electric vehicle remaining mileage calculation method and device provided by the invention, the reference mileage energy consumption and the reference remaining mileage are calculated, and the remaining mileage final value is obtained after the remaining mileage original value is corrected, so that the nominal mileage is displayed when the electric vehicle is fully charged; the problem that due to different driving habits and working conditions, the displayed remaining mileage is different from the nominal mileage when the electric quantity is full is solved, meanwhile, the accurate remaining mileage can be displayed when the electric quantity is low, the mileage anxiety of a driver is reduced, and a better basis is provided for user travel and charging arrangement.

    本公开提供了电动汽车剩余里程计算方法及装置,该方法包括:计算车辆的行驶能耗EgyCnsDrv;计算实际剩余里程RngDrvIni;获得参考里程能耗EgyCnsRef;计算参考剩余里程RngDrvRef;将实际剩余里程RngDrvIni与参考剩余里程RngDrvRef取大得到剩余里程原始值RngDrvRaw;对剩余里程原始值RngDrvRaw进行修正,得到剩余里程最终值RngDrvDisp。本公开提供的电动汽车剩余里程计算方法及装置,通过参考里程能耗和参考剩余里程的计算,并对剩余里程原始值进行修正后得到剩余里程最终值,使得在满电时显示标称里程,解决由于不同驾驶习惯和工况导致满电时显示的剩余里程与标称里程存在差距的问题,同时在电量较低时能够显示精确的剩余里程,降低驾驶人员的里程焦虑,为用户出行和充电安排提供更好的依据。


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    Titel :

    Method and device for calculating remaining mileage of electric vehicle


    Weitere Titelangaben:

    电动汽车剩余里程计算方法及装置


    Beteiligte:
    LU PENGCHENG (Autor:in) / MA SHOUMING (Autor:in) / XIONG FENG (Autor:in) / LIU YIMING (Autor:in) / SHI JINLONG (Autor:in) / LIANG WEI (Autor:in)

    Erscheinungsdatum :

    2023-04-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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