The invention relates to a power battery high-voltage loop, a control method and an electric vehicle, which aim to reduce the use number of relays to achieve the effect of reducing the cost on the premise of meeting the functions of the high-voltage loop. The power battery high-voltage loop comprises a battery management system (BMS), a power battery, a discharging plug connector, a charging plugconnector and a pre-charging circuit, wherein the discharging plug connector and the charging plug connector are connected with the positive electrode of the power battery through a main positive relay; the discharging plug connector is connected with the negative electrode of the power battery through a wire; the charging plug connector is connected with the negative electrode of the power battery through a direct-current negative relay; the pre-charging circuit is connected with the main positive relay in parallel; the battery management system BMS is connected with the main positive relay,the DC negative relay and the pre-charging circuit through signal lines.
本方案涉及一种动力电池高压回路、控制方法及电动汽车,以在满足高压回路功能的前提下,减少继电器使用数量达到降低成本的效果。该动力电池高压回路包括:电池管理系统BMS、动力电池、放电插接件、充电插接件以及预充电电路;所述放电插接件和所述充电插接件通过主正继电器连接所述动力电池的正极;所述放电插接件通过导线连接所述动力电池的负极;所述充电插接件通过直流负继电器连接所述动力电池的负极;所述预充电电路与所述主正继电器并联;所述电池管理系统BMS分别通过信号线连接所述主正继电器、所述直流负继电器和所述预充电电路。
Power battery high-voltage loop, control method and electric vehicle
一种动力电池高压回路、控制方法及电动汽车
2020-08-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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