The invention relates to the technical field of electric vehicle charging, and discloses a charging and discharging system of a vehicle, the vehicle and a charging and discharging method of the vehicle, and the system comprises a power battery system, a first high-voltage power distribution module, a second high-voltage power distribution module, an electric driving system and a controller. The power battery system comprises an intermediate switch and a plurality of power battery packs connected in series, the first high-voltage power distribution module comprises a main positive switch and a main negative switch, the second high-voltage power distribution module comprises a fast charge positive switch and a fast charge negative switch, and the electric drive system comprises a motor and an inverter; the controller is used for controlling the main positive switch to be switched off and controlling the main negative switch, the intermediate switch, the fast charging positive switch and the fast charging negative switch to be switched on when the voltage of the first external device is smaller than that of the power battery system and larger than that of the second power battery pack. And controlling the first power switch and the second power switch to be switched on alternately to charge the second power battery pack. The charging efficiency of the power battery in the vehicle can be improved.
本发明涉及电动车辆充电技术领域,公开了一种车辆的充放电系统、车辆及车辆的充放电方法,系统包括动力电池系统、第一高压配电模块、第二高压配电模块、电驱系统及控制器。动力电池系统包括中间开关和串联连接的多个动力电池组,第一高压配电模块包括主正开关和主负开关,第二高压配电模块包括快充正开关和快充负开关,电驱系统包括电机和逆变器;控制器用于在第一外部设备的电压小于动力电池系统的电压且第一外部设备的电压大于第二动力电池组的电压时,控制主正开关断开,控制主负开关、中间开关、快充正开关和快充负开关闭合,以及控制第一功率开关和第二功率开关交替导通,为第二动力电池组充电。本发明能够提升车辆中动力电池的充电效率。
Charging and discharging system of vehicle, vehicle and charging and discharging method of vehicle
一种车辆的充放电系统、车辆及车辆的充放电方法
2024-09-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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