The invention discloses a system and a control method for preventing power shortage of a storage battery of an electric vehicle. The system comprises electrical equipment, the storage battery, a key, a vehicle starting switch, a storage battery relay and a vehicle body controller. The control method comprises the steps that the storage battery relay is arranged between the storage battery and the electrical equipment of the electric vehicle; and the vehicle body controller receives an instruction of unlocking and/or locking the vehicle door of the key, enables the storage battery relay to be switched on according to the instruction of unlocking the vehicle door, and/or enables the storage battery relay to be switched off according to the instruction of locking the vehicle door. By adding the storage battery relay, when a driver locks a vehicle and leaves, the storage battery relay can be automatically switched off and stops supplying power to electrical equipment, energy consumption of the storage battery is fundamentally reduced, a voltage sensor is integrated in the storage battery relay, the voltage of the storage battery can be monitored in real time, the fault that the voltage of the storage battery is too low is avoided, intelligent and efficient performance is achieved, and the structure is simple, safe and reliable.

    本发明公开了一种防止电动汽车蓄电池亏电的系统及控制方法,系统包括电器设备、蓄电池、钥匙、车辆启动开关、蓄电池继电器和车身控制器,控制方法包括在蓄电池与电动汽车的电器设备之间设置蓄电池继电器,车身控制器接收钥匙的解锁车门和/或锁车门的指令,车身控制器根据解锁车门的指令控制蓄电池继电器导通,和/或根据锁车门的指令控制蓄电池继电器断开。本发明通过增加蓄电池继电器,当驾驶员锁车离开后,蓄电池继电器会自动断开,停止给电器设备供电,从根本上减少了蓄电池的能耗,并且在蓄电池继电器中集成电压传感器,能够实时监测蓄电池电压,避免出现蓄电池电压过低故障,更加智能、高效,同时结构简单、安全可靠。


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    Title :

    System and control method for preventing power shortage of storage battery of electric vehicle


    Additional title:

    一种防止电动汽车蓄电池亏电的系统及控制方法


    Contributors:
    WAN JIYUN (author) / DONG HAO (author) / WU HAOTIAN (author) / ZHANG HAN (author) / MOU KANGWEI (author) / GUO MENGQI (author)

    Publication date :

    2021-05-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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