The invention provides an electric vehicle low-voltage storage battery charging method which comprises the following steps: when an intelligent charging function is started, detecting to obtain a high-voltage connection state of a charging loop, and providing a high-voltage connection failure signal when the high-voltage connection state is abnormal; restarting an intelligent power supply function according to the high-voltage connection failure signal; and obtaining the number of high-voltage connection failures according to the high-voltage connection failure signal, and forbidding the intelligent charging function when the number of high-voltage connection failures exceeds a preset reference number of failures. According to the electricity supplementing method for the low-voltage storage battery of the electric vehicle, in the intelligent electricity supplementing process of the low-voltage storage battery, the abnormity of the high-voltage connection state of the electricity supplementing and charging loop can be responded, the intelligent electricity supplementing function is restarted when the abnormity occurs, the electricity supplementing execution reliability is guaranteed, the use reliability of the electric vehicle is guaranteed, and the service life of the low-voltage storage battery is prolonged. And when the number of abnormities exceeds the safety range, the intelligent charging function is disabled, so that the risk of safety problems in the charging process can be effectively reduced, and the safety is improved.

    本发明提供一种电动汽车低压蓄电池补电方法,其在智能补电功能开启时,检测获得补电充电回路的高压连接状态,并在高压连接状态出现异常时提供高压连接失败信号;根据高压连接失败信号重启智能补电功能;根据高压连接失败信号获得高压连接失败次数,并在高压连接失败次数超出预设的参考失败次数时,禁用智能补电功能。本发明提供的电动汽车低压蓄电池补电方法在对低压蓄电池的智能补电过程中,可响应于其补电充电回路的高压连接状态的异常,在出现异常时重启智能补电功能,保障补电执行的可靠性,保障电动汽车的使用可靠性,以及,在异常次数超出安全范围时,禁用智能补电功能,可有效降低补电过程中发生安全问题的风险,提高安全性。


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    Titel :

    Electricity supplementing method for low-voltage storage battery of electric vehicle


    Weitere Titelangaben:

    一种电动汽车低压蓄电池补电方法


    Beteiligte:
    LI HAIMU (Autor:in) / YU WENTONG (Autor:in) / WEI GUANGJIE (Autor:in) / FU CHAO (Autor:in) / YANG LE (Autor:in) / YANG KUNMING (Autor:in)

    Erscheinungsdatum :

    2023-10-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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