The invention relates to a method for operating an on-board electrical system (4) of a motor vehicle (2), the on-board electrical system (4) having a first voltage circuit (I) and a second voltage circuit (II), a first operating voltage of the first voltage circuit (I) being higher than a second operating voltage of the second voltage circuit (II), the first voltage circuit (I) being connected to the second voltage circuit (II) by means of a DC-DC converter (8), the first voltage circuit (I) has a battery (10) and the second voltage circuit (II) has a main battery (12), and is characterized in that a step-down converter (14) is provided parallel to the DC-DC converter (8), the step-down converter (14) provides electrical energy from the battery (10) to components of the motor vehicle (2) connected via a connection point (67).

    本发明涉及一种用于操作机动车辆(2)的车载电网(4)的方法,车载电网(4)具有第一电压电路(I)和第二电压电路(II),第一电压电路(I)的第一操作电压高于第二电压电路(II)的第二操作电压,第一电压电路(I)通过DC‑DC转换器(8)连接到第二电压电路(II),第一电压电路(I)具有电池(10)以及第二电压电路(II)具有主电池(12),其特征在于,与DC‑DC转换器(8)并行的设有降压转换器(14),降压转换器(14)向通过连接点(67)连接的机动车辆(2)的部件提供来自电池(10)的电能。


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    Title :

    Method for operating on-board electrical system of motor vehicle


    Additional title:

    用于操作机动车辆的车载电网的方法


    Contributors:

    Publication date :

    2021-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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