The invention discloses an overcharge control method and system for an electric vehicle, and relates to the technical field of overcharge control, and the method can accurately predict and evaluate the temperature change of a battery by collecting battery data in real time in the overcharge process and combining a normalized data set and a charging feature vector set. Particularly, by constructing a heat and temperature algorithm model, the system can predict the change trend of the battery temperature in the overcharge process. And when the predicted temperature value Tb exceeds the temperature threshold T, the system can immediately trigger an adaptive charging power and cooling system cooperation mechanism, and automatically adjust the overcharge power Pya and the cooling power Pcool. Through the mechanism, when the battery temperature is close to the safety upper limit, the overheating risk can be effectively avoided, and the safety of the charging process is ensured. According to the measure, the accuracy of battery temperature management is remarkably improved, the risk of battery damage caused by abnormal temperature is reduced, and the service life of the battery is prolonged.

    本发明公开了一种电动汽车的超充控制方法及其系统,涉及超充控制技术领域,该方法通过在超充过程中实时采集电池数据,结合归一化数据集与充电特征向量集,能够对电池的温度变化进行精确的预测和评估。特别是通过构建热量与温度算法模型,系统能够在超充过程中预测电池温度的变化趋势。当预测温度值Tb超过温度阈值T时,系统能够立即触发自适应充电功率与冷却系统协同机制,自动调节超充功率Pcha和冷却功率Pcool。通过该机制,在电池温度接近安全上限时,能够有效避免过热风险,保证充电过程的安全性。此措施显著提升了电池温度管理的精准性,减少了由于温度异常导致的电池损伤风险,有助于延长电池的使用寿命。


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    Title :

    Overcharge control method and system for electric vehicle


    Additional title:

    一种电动汽车的超充控制方法及其系统


    Contributors:
    KONG JIAN (author) / CHEN XUDI (author) / HUANG YUANHUI (author) / WANG YUCHUAN (author)

    Publication date :

    2025-03-14


    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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