The invention relates to a vehicle high-voltage electrical system and a vehicle, and belongs to the field of new energy automobiles. High-voltage charging is performed when the battery packs are connected in series, so that the charging speed is higher; and when the battery packs are connected in parallel, low-voltage power supply is realized to match the voltage of parts in the vehicle. The battery packs are connected in parallel through the parallel connection switching module and the branch on-off module, the battery packs are connected in series through the series connection switching module, when series connection charging is needed, the charging interface is conducted under the condition that the series connection switching module is closed and the branch on-off module is disconnected, and at the moment, the battery packs are certainly in a series connection state. Therefore, the charging safety of the vehicle high-voltage system is ensured. When parallel power supply is needed, after the branch on-off module is determined to be closed and the series change-over switch is switched off, the parallel switching module is controlled to be closed, at the moment, the battery pack is certainly in a parallel state, and then the power supply safety of the vehicle high-voltage system is guaranteed.
本发明涉及一种车辆高压电气系统及车辆,属于新能源汽车领域;在电池组串联时高压充电,使得充电速度较快;在电池组并联时低压供电,以匹配车辆内的零部件的电压。通过并联切换模块和支路通断模块使得电池组并联,通过串联切换模块使得电池组串联,在需要串联充电时,在确保串联切换模块闭合和支路通断模块断开的情况下,导通充电接口,此时电池组一定处于串联状态,就保证了车辆高压系统的充电安全。在需要并联供电时,则确认支路通断模块闭合和串联切换开关断开后,控制并联切换模块闭合,此时电池组一定处于并联状态,进而保证车辆高压系统的供电安全。
Vehicle high-voltage electrical system and vehicle
一种车辆高压电气系统及车辆
2023-05-30
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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