The invention discloses a circuit control method, device, equipment and system and a storage medium. The method comprises the following steps: acquiring a duty ratio mapping relation and a target high-voltage sampling voltage of a step-down DCDC circuit; the target high-voltage sampling voltage is the sampling voltage of the input voltage of the step-down DCDC circuit; the duty ratio mapping relation indicates the mapping relation between the high-voltage sampling voltage of the step-down DCDC circuit and the maximum duty ratio; according to a duty ratio mapping relation, determining a maximum duty ratio corresponding to the target high-voltage sampling voltage; and controlling the step-down DCDC circuit to work according to the maximum duty ratio corresponding to the target high-voltage sampling voltage. According to the invention, when the electric signal sampling of the step-down DCDC circuit is abnormal, the step-down DCDC circuit can work continuously, and meanwhile, the vehicle anchoring risk is reduced.

    本申请公开了一种电路控制方法、装置、设备、系统以及存储介质。该方法包括:获取降压DCDC电路的占空比映射关系和目标高压采样电压;目标高压采样电压为降压DCDC电路的输入电压的采样电压;占空比映射关系指示降压DCDC电路的高压采样电压与最大占空比之间的映射关系;根据占空比映射关系,确定目标高压采样电压对应的最大占空比;根据目标高压采样电压对应的最大占空比,控制降压DCDC电路进行工作。通过本申请,可以在降压DCDC电路的电信号采样异常时,使降压DCDC电路持续工作,同时减小车辆抛锚风险。


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    Titel :

    Circuit control method, device, equipment, system and storage medium


    Weitere Titelangaben:

    一种电路控制方法、装置、设备、系统以及存储介质


    Beteiligte:
    WANG CHAO (Autor:in) / LIU WEIDONG (Autor:in) / WANG XINGHUI (Autor:in)

    Erscheinungsdatum :

    01.10.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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