The invention discloses a power supply protection device for preventing over discharge of an auxiliary storage battery of a pure electric vehicle, which comprises a power supply protection device. The power supply protection device comprises an auxiliary storage battery voltage monitoring circuit, a power storage battery control circuit, a communication circuit, a DC-DC control circuit and an embedded software system. The auxiliary storage battery voltage monitoring circuit is connected with an auxiliary storage battery, the power storage battery control circuit is connected with a power battery, the power battery supplies power to a DC-DC converter through a DC-DC control circuit in a high-voltage mode, and the DC-DC converter charges/supplements the auxiliary storage battery. And the power supply protection device is connected with the embedded software system through the communication circuit and is connected with a vehicle-mounted remote terminal module through the communication circuit. The state of the auxiliary storage battery of the vehicle can be monitored in real time and fed back to a user in time, safe starting and normal use of the electric vehicle after long-time storage can be guaranteed, and damage caused by over-discharge of the auxiliary storage battery is prevented.
本发明公开了一种防止纯电动汽车辅助蓄电池过度放电的电源保护装置,包括电源保护装置,电源保护装置包含辅助蓄电池电压监测电路、动力蓄电池控制电路、通信电路、DC‑DC控制电路和嵌入式软件系统,辅助蓄电池电压监测电路连接有辅助蓄电池,动力蓄电池控制电路连接有动力电池,动力电池通过DC‑DC控制电路高压供电有DC‑DC转换器,DC‑DC转换器充电/补电辅助蓄电池,电源保护装置通过通信电路与嵌入式软件系统相连接且通过通信电路连接有车载远程终端模块。本发明能实时监测汽车辅助蓄电池的状态,并及时反馈给用户,能保证电动汽车在长时间存放后的安全启动及正常使用,并防止辅助电池过度放电导致损坏。
Power supply protection device for preventing over discharge of auxiliary storage battery of pure electric vehicle
一种防止纯电动汽车辅助蓄电池过度放电的电源保护装置
2021-12-03
Patent
Electronic Resource
Chinese
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