The disclosure provides 'an automotive electric drive systems with interleaved variable voltage converters'. A bi-directional variable voltage converter transfers power between a traction battery and an electric machine inverter. The bi-directional variable voltage converter includes a capacitor, two power module phase legs, and an air-gapped transformer with three windings and no more than four terminals. A first of the windings defines a first terminal and a second terminal of the no more than four terminals. The first terminal is directly electrically connected with a positive terminal of the traction battery and the second terminal is directly electrically connected with a positive terminal of the capacitor and a junction between the second and third windings. A second of the windings defines a third terminal of the no more than four terminals directly electrically connected with one of the power module phase legs. A third of the windings defines a fourth terminal of the no more than four terminals directly electrically connected with the other of the power module phase legs.
本公开提供了“具有交错式可变电压转换器的汽车电驱动系统”。一种双向可变电压转换器在牵引电池与电机逆变器之间传输功率。所述双向可变电压转换器包括电容器、两个功率模块相桥以及具有三个绕组和仅仅四个端子的气隙变压器。所述绕组中的第一个限定所述仅仅四个端子中的第一端子和第二端子。所述第一端子与牵引电池的正端子直接电连接,并且所述第二端子与电容器的正端子以及在所述第二绕组和第三绕组之间的接点直接电连接。所述绕组中的第二个限定所述仅仅四个端子中的第三端子,所述第三端子与功率模块相桥中的一个直接电连接。所述绕组中的第三个限定所述仅仅四个端子中的第四端子,所述第四端子与功率模块相桥中的另一个直接电连接。
Automotive electric drive systems with interleaved variable voltage converters
具有交错式可变电压转换器的汽车电驱动系统
2021-04-23
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
Automotive electric drive systems with interleaved variable voltage converters
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