The embodiment of the invention provides an electric driving system of an electric automobile and a control method thereof, in the electric driving system of the electric automobile, a switch module is additionally arranged, a three-phase inverter circuit of a driving motor is divided into a first half-bridge circuit group and a second half-bridge circuit group, the first half-bridge circuit group is connected with a power battery system, and the second half-bridge circuit group is connected with a power battery system. And the second half-bridge circuit group is connected with the direct-current charging port, so that boost charging is realized by multiplexing a ready-made three-phase inverter circuit power switch tube and a motor winding inductor, and compared with additional arrangement of a special boost converter, the cost is greatly reduced.
本申请实施例提供一种电动汽车电力驱动系统及其控制方法,该电动汽车电力驱动系统中,通过增设开关模块,将驱动电机的三相逆变电路分为第一半桥电路组和第二半桥电路组,由该第一半桥电路组与动力电池系统相连,该第二半桥电路组与直流充电口相连,如此,复用现成的三相逆变电路功率开关管、电机绕组电感来实现升压充电,相比增设专用的升压变换器来说,成本大幅减少。
Electric automobile electric driving system and control method thereof
一种电动汽车电力驱动系统及其控制方法
2022-12-23
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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