The invention relates to a traction network (1) for a motor vehicle, comprising at least one high-voltage battery (2), a DC/DC converter (11), an intermediate circuit capacitor (C) consisting of at least two capacitors (C1, C2) connected in series and having a neutral point (N), an inverter (3) and a three-phase AC charging interface (6), the three AC charging lines (L1-L3) are connected to an AC voltage filter (7), the inverter (3) having three half-bridges (H1-H3), each half-bridge (H1-H3) being associated with a monolithic bidirectional field-effect transistor (10), the high-voltage-side transistor of the bidirectional field-effect transistor (10) being connected to the center tap (M) of the associated half-bridge (H1-H3), and the high-voltage-side transistor of the bidirectional field-effect transistor (10) being connected to the center tap (M) of the associated half-bridge (H1-H3). The DC/DC converter is characterized in that low-voltage side transistors of the bidirectional field effect transistors (10) are each connected to a neutral point (N) of an intermediate circuit capacitor (C), three AC charging lines (L1-L3) are connected to a center tap (M) of the half bridges (H1-H3), and the DC/DC converter is designed as an electrically isolated DC/DC converter.
本发明涉及一种用于机动车的牵引网络(1),所述牵引网络包括至少一个高压电池(2)、直流/直流转换器(11)、由至少两个串联连接的电容器(C1、C2)构成并且具有中性点(N)的中间电路电容器(C)、逆变器(3)和三相交流充电接口(6),其中,三个交流充电线路(L1‑L3)与交流电压滤波器(7)连接,其中,所述逆变器(3)具有三个半桥(H1‑H3),其中,每个半桥(H1‑H3)对应配置有整体式的双向场效应晶体管(10),其中,所述双向场效应晶体管(10)的高压侧晶体管分别与其对应配属的半桥(H1‑H3)的中心抽头(M)连接,并且所述双向场效应晶体管(10)的低压侧晶体管分别与中间电路电容器(C)的中性点(N)连接,其中,三个交流充电线路(L1‑L3)与所述半桥(H1‑H3)的中心抽头(M)连接,其中,所述直流/直流转换器设计为电隔离的直流/直流转换器。
TRACTION NETWORK FOR A MOTOR VEHICLE
用于机动车的牵引网络
2025-05-02
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |