A high-voltage charging circuit on the vehicle side, which is equipped with an AC voltage terminal (WA); at least two electrically isolated DC voltage converters (W1, W2) designed as step-up choppers, and a rectifier (G) by means of which the DC voltage converters (W1, W2) are connected to the AC voltage connection (WA); and a change-over switch (US). The charging circuit has a first and a second DC voltage connection (A1, A2), which are selectively connected to the first DC voltage converter (W1) via the transfer switch (US). The charging circuit has a third DC voltage connection (A3), which is permanently connected to the second DC voltage converter, and wherein the charging circuit further has a control device (S), which is designed to actuate the DC voltage converters in a first mode as a function of a first nominal output voltage and to actuate the second DC voltage converter in a second mode as a function of a second nominal output voltage. The minimum of the first rated output voltage is 750V and the maximum of the first rated output voltage is 1000V; and in a second mode, the DC voltage converter is controlled according to a second rated output voltage, and the second rated output voltage is at most 480 V or at most 450 V. The invention further relates to an on-board electrical system having a vehicle-side high-voltage charging circuit.

    车辆侧的高压充电电路,其配备有交流电压接头(WA);至少两个电气隔离的、构造成升压斩波器的直流电压转换器(W1、W2)和整流器(G),通过所述整流器,所述直流电压转换器(W1、W2)与交流电压接头(WA)连接;以及具有转换开关(US)。所述充电电路具有第一和第二直流电压接头(A1、A2),所述第一和第二直流电压接头通过所述转换开关(US)可选择地与第一直流电压转换器(W1)连接。所述充电电路具有第三直流电压接头(A3),所述第三直流电压接头与第二直流电压转换器永久地连接,其中,所述充电电路此外具有控制装置(S),所述控制装置设置用于在第一模式中,根据第一额定输出电压来操控所述直流电压转换器,所述第一额定输出电压最小为750V并且最大为1000V;并且在第二模式中,根据第二额定输出电压来操控所述直流电压转换器,所述第二额定输出电压最大为480V或最大为450V。此外,说明一种具有车辆侧的高压充电电路的车载电气网络。


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    Titel :

    High-voltage charging circuit on vehicle side and on-board electrical network


    Weitere Titelangaben:

    在车辆侧的高压充电电路和车载电气网络


    Beteiligte:

    Erscheinungsdatum :

    2022-11-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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