The invention provides a vehicle-mounted charging and discharging system of an electric vehicle. The vehicle-mounted charging and discharging system comprises a first control circuit, a second control circuit, an auxiliary circuit, a storage battery and a multiplexing control unit, a stator winding of the motor M1 is controlled through the mechanical switch, the multiplexing control unit controls the vehicle-mounted charging and discharging system to achieve switching of working modes, and the working modes comprise a driving and braking recovery mode, a single-phase charging/grid-connected mode and a three-phase charging/grid-connected mode. An electric driving system of the dual-motor electric automobile and an automobile charging system are integrated together through an auxiliary circuit to form a time division multiplexing integrated system, time division multiplexing of power devices is achieved, the limited space size of the electric automobile is saved, the weight of the automobile is reduced, and the cost of the whole automobile is obviously reduced; according to the integrated system, single-phase or three-phase charging/grid connection can be realized in a charging mode, and two motors can be independently controlled to rotate in a driving mode.
本发明提供一种电动汽车车载充放电系统,包括第一控制电路、第二控制电路、辅助电路、蓄电池和复用控制单元;通过机械开关控制电机M1的定子绕组,复用控制单元控制该车载充放电系统实现工作模式转换,工作模式包括驱动和制动回收模式、单相充电/并网模式、三相充电/并网模式。本发明将双电机电动汽车电驱动系统与汽车充电系统通过辅助电路集成在一起构成分时复用一体化系统,实现了功率器件的分时复用,节约了电动汽车有限的空间体积、减轻了汽车重量,更显著降低了整车成本,该一体化系统在充电模式时可实现单相或三相充电/并网,在驱动模式时可以单独控制两个电机转动。
Vehicle-mounted charging and discharging system of electric vehicle
一种电动汽车车载充放电系统
2023-10-03
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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