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。

    Disclosed are a charging control method and system for a range extend electric vehicle, and the electric vehicle. The control method includes: presetting a first threshold value and a second threshold value and executing the following steps: when the electric quantity of a battery is lower than the second threshold value, performing forced charging on the battery; when the electric quantity of the battery is lower than the first threshold value and higher than the second threshold value, proceeding to a subsequent step to determine whether Pv+Pb1>Pu is met, Pv, Pb1 and Pu respectively representing current vehicle driving required power, minimum required charging power of the battery and maximum power of a high efficiency running range of an engine; if not, determining the time as an optimal charging time, controlling the engine to increase the power to Pu, and charging the battery with a power of Pu-Pv; and if so, skipping performing charging, and predicting an optimal charging time for charging according to a terrain condition or road environment ahead. On the basis of the above charging control method, the optimal charging time of the range extend electric vehicle can be predicted, ensuring that the engine runs in a high efficiency power range while charging the battery, and achieving better economic efficiency.


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    Titel :

    一种增程式电动车的充电控制方法、系统和电动车


    Erscheinungsdatum :

    22.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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