The invention relates to a battery system (10) for a motor vehicle, comprising: a first battery module (5) having a first voltage source (V1), a first inductance (L1), a positive pole (22) and a negative pole (21); a second battery module (6) having a second voltage source (V2), a second inductor (L2), a positive electrode (22) and a negative electrode (21); an output capacitor (CA) having a positive terminal (12) and a negative terminal (11); a first switching unit (50) for connecting the first battery module (5) to the output capacitor (CA); and a second switching unit (60) for connecting the second battery module (6) with the output capacitor (CA). Each of the switching units (50, 60) has a first switching element (61), a second switching element (62), and a third switching element (63), a first connection of the first switching element (61) being connected to a node (25), a second connection of the first switching element (61) being connected to one of the poles (21, 22) of the associated battery module (5, 6), and a third connection of the second switching element (62) being connected to the other of the poles (21, 22) of the associated battery module (5, 6). A first connection of the second switching element (62) is connected to the node (25), a second connection of the second switching element (62) is connected to one of the terminals (11, 12) of the output capacitor (CA), and a first connection of the third switching element (63) is connected to the other of the poles (21, 22) of the associated battery module (5, 6) and to the terminals (11, 12) of the output capacitor (CA). 12), and a second connection of the third switching element (63) is connected to the node (25). The invention also relates to a method for operating a battery system (10) according to the invention, in which the second switching unit (60) is actuated in such a way that a current (I) flows through the second battery module (6), whereby electrical energy is transmitted to a second voltage source (V2) of the second battery module (6). The invention also relates to a motor vehicle comprising at least one battery system (10) according to the invention, which battery system is operated in a method according to the invention.

    本发明涉及一种用于机动车的电池系统(10),包括:第一电池模块(5),所述第一电池模块具有第一电压源(V1)、第一电感(L1)、正极(22)和负极(21);第二电池模块(6),所述第二电池模块具有第二电压源(V2)、第二电感(L2)、正极(22)和负极(21);输出电容器(CA),所述输出电容器具有正的端子(12)和负的端子(11);用于将所述第一电池模块(5)与所述输出电容器(CA)连接的第一开关单元(50);以及用于将所述第二电池模块(6)与所述输出电容器(CA)连接的第二开关单元(60)。所述开关单元(50,60)中的每个开关单元分别具有第一开关元件(61)、第二开关元件(62)和第三开关元件(63),其中,所述第一开关元件(61)的第一连接端与节点(25)连接,所述第一开关元件(61)的第二连接端与所配属的电池模块(5,6)的极(21,22)中的一个极连接,所述第二开关元件(62)的第一连接端与所述节点(25)连接,所述第二开关元件(62)的第二连接端与所述输出电容器(CA)的端子(11,12)中的一个端子连接,所述第三开关元件(63)的第一连接端与所配属的电池模块(5,6)的极(21,22)中的另一极连接并且与所述输出电容器(CA)的端子(11,12)中的另一端子连接,并且所述第三开关元件(63)的第二连接端与所述节点(25)连接。本发明还涉及一种用于运行根据本发明的电池系统(10)的方法,其中,如此操控所述第二开关单元(60),使得电流(I)流过所述第二电池模块(6),由此将电能传输至所述第二电池模块(6)的第二电压源(V2)。本发明还涉及一种机动车,所述机动车包括至少一个根据本发明的电池系统(10),所述电池系统以根据本发明的方法运行。


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    Title :

    Battery system for motor vehicle for balancing battery modules, method for operating battery system, and motor vehicle


    Additional title:

    用于平衡电池模块的机动车的电池系统、用于运行电池系统的方法和机动车


    Contributors:
    J EARL (author) / GLEITER ANDREAS (author) / LANDA SERGIO (author)

    Publication date :

    2022-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / 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



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