The invention relates to a DCDC control method, device and system and a vehicle, and the method comprises the steps: obtaining the rated power of at least two DCDCs which are connected in parallel between a high-voltage power supply and a low-voltage load; calculating real-time load rates of the at least two DCDCs according to the real-time power of the low-voltage load; selecting at least one DCDC according to the real-time load rate and the rated power; and controlling the selected DCDC to be connected to a circuit comprising the high-voltage power supply and the low-voltage load so as to adjust the real-time load rate of the selected DCDC to be within a preset load rate range. According to the scheme provided by the invention, one or more combined DCDCs are calculated and called according to the rated power of each DCDC, so that the real-time load rate of each called DCDC is within the preset load rate range, and the maximum utilization efficiency of the DCDC is realized.

    本申请涉及一种DCDC的控制方法、装置、系统及车辆,方法包括:获取至少两个DCDC的额定功率,其中,所述至少两个DCDC并联在高压电源与低压负载之间;根据所述低压负载的实时功率计算所述至少两个DCDC的实时负载率;根据所述实时负载率和所述额定功率选定至少一个所述DCDC;控制选定的DCDC连通到包括所述高压电源与所述低压负载的电路中,以调节被选定的所述DCDC的实时负载率至预设负载率范围内。本申请的方案,按照每个DCDC的额定功率,计算调用一个或者多个组合的DCDC,使每一个被调用的DCDC的实时负载率处于预设的负载率范围,来实现DCDC的最大利用效率。


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    Title :

    DCDC control method, device and system and vehicle


    Additional title:

    DCDC的控制方法、装置、系统及车辆


    Contributors:
    QIAO HUA (author) / LAI ANDONG (author) / TANG XIAOSHENG (author)

    Publication date :

    2025-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / 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



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