The invention discloses an output voltage sampling signal effectiveness identification method, a vehicle-mounted charging system, a vehicle and a storage medium, and the output voltage sampling signal effectiveness identification method can be used for a step-down DC circuit for carrying out step-down processing on the output voltage of a vehicle-mounted charger or a power battery. The output end of the step-down DC circuit is connected with a storage battery. The identification method comprises the following steps: acquiring an output voltage sampling signal of the step-down DC circuit; determining that the output voltage sampling signal exceeds a target working voltage range of the step-down DC circuit; acquiring a voltage value of the power battery and a voltage value of the storage battery; and determining that the output voltage sampling signal is invalid according to the voltage value of the power battery and/or the voltage value of the storage battery, and triggering a protection mechanism. According to the method, the system and the vehicle, the effectiveness of the output voltage sampling signal of the step-down DC circuit in the vehicle-mounted charging system can be identified, and the safety of the vehicle is improved.

    本发明公开了一种输出电压采样信号有效性的识别方法、车载充电系统、车辆和存储介质,其中,输出电压采样信号有效性的识别方法可以用于将车载充电机或动力电池的输出电压进行降压处理的降压DC电路,所述降压DC电路的输出端与蓄电池连接,所述识别方法包括:获取所述降压DC电路的输出电压采样信号;确定所述输出电压采样信号超出所述降压DC电路的目标工作电压范围;获取所述动力电池的电压值和所述蓄电池的电压值;根据所述动力电池的电压值和/或所述蓄电池的电压值确定所述输出电压采样信号失效,则触发保护机制。本发明的方法和系统及车辆,可以识别车载充电系统中降压DC电路的输出电压采样信号的有效性,提高车辆安全性。


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    Title :

    Voltage sampling signal identification method, vehicle-mounted charging system, vehicle and medium


    Additional title:

    电压采样信号的识别方法、车载充电系统、车辆和介质


    Contributors:
    LIU WEIDONG (author) / LU HUIXIA (author) / WANG CHAO (author) / WANG XINGHUI (author)

    Publication date :

    2024-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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