According to the charging control method and system of the extended-range electric vehicle and the electric vehicle, a first threshold value and a second threshold value are preset, and the first threshold value is larger than the second threshold value; the control method comprises the following steps: 1) when the electric quantity of a battery is lower than a first threshold value and higher than a second threshold value, entering step 2); when the electric quantity of the battery is lower than a second threshold value, the controller controls the battery to be forcibly charged; (2) judging whether Pv + Pb1 is larger than Pu, Pv, Pb1 and Pu are the current vehicle driving power requirement by a controller, the battery minimum charging power requirement and the maximum power value of the high-efficiency operation interval of the engine respectively, if not, determining the time as the optimal charging opportunity, controlling the engine to increase the power to Pu, and charging the battery with the power Pu-Pv; if yes, charging is not carried out, and entering the step 3); 3) predicting an optimal charging opportunity according to the front topographic condition or the road environment, and charging at the optimal charging opportunity; and 4) returning to the step 1). According to the method, the optimal charging opportunity is predicted for the extended-range electric vehicle, it is ensured that when the engine charges the battery, the engine operates in a high-efficiency power interval, and better economical efficiency is achieved.

    一种增程式电动车的充电控制方法、系统和电动车,预设第一阈值和第二阈值,且第一阈值大于第二阈值;控制方法步骤如下:1)当电池的电量低于第一阈值且高于第二阈值时,进入步骤2);当电池的电量低于第二阈值时,控制器控制对电池进行强制充电;2)控制器判断是否满足Pv+Pb1>Pu,Pv、Pb1和Pu分别为当前车辆驱动功率需求、电池最低充电功率需求和发动机的高效能运行区间的最大功率值,若否,则为最佳充电时机,控制发动机提高功率至Pu,对电池以功率Pu‑Pv进行充电;若是,则不进行充电,进入步骤3);3)根据前方地形情或道路环境预测最佳的充电时机,并在该最佳的充电时机进行充电;4)回到步骤1)。本发明为增程式电动车预测最佳充电时机,确保发动机在对电池充电时,运行在高效能功率区间,有更好的经济性。


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    Titel :

    Charging control method and system for extended-range electric vehicle and electric vehicle


    Weitere Titelangaben:

    一种增程式电动车的充电控制方法、系统和电动车


    Beteiligte:
    TU YANKAI (Autor:in) / CHEN YUAN (Autor:in)

    Erscheinungsdatum :

    2022-01-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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




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