The invention discloses an electric quantity information display device for an electric vehicle lithium battery, and relates to the field of low-speed electric driving equipment, the electric quantity information display device comprises a key switch, the key switch is electrically connected with a microprocessor, and the microprocessor is electrically connected with a battery voltage detection circuit and a CAN communication interface. The CAN communication interface sends the received working information to the microprocessor for analysis, and the microprocessor sends the analyzed data to the information display unit for real-time display; the microprocessor is connected with the lithium battery system through the CAN communication interface, the working state information of the lithium battery system is displayed on the display screen in real time by analyzing the CAN information of the lithium battery system, and a switch is arranged, so that the function of cutting off an output loop can be realized according to the actual working condition requirement of a user. An instrument of an existing electric vehicle does not need to be changed, and the device can adapt to battery management systems of different voltage grades and can be widely applied to various low-speed electric driving devices.

    本发明公开了一种用于电动车辆锂电池的电量信息显示装置,涉及低速电动行驶设备领域,包括钥匙开关,钥匙开关电性连接有微处理器,微处理器电性连接有电池电压检测电和CAN通讯接口,CAN通讯接口将接收到的工作信息发送至微处理器解析,微处理器将解析出的数据发送至信息显示单元进行实时显示;本发明采用了一个微处理器通过CAN通讯接口与锂电池系统相连接,通过解析锂电池系统的CAN信息,将锂电池系统的工作状态信息实时显示在显示屏上,自带一路开关,可根据用户的实际工况需求来实现输出回路的切断的功能。无需更改现有电动车辆的仪表,可适应不同电压等级的电池管理系统,能广泛应用于各种低速电动行驶设备。


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    Title :

    Electric quantity information display device for lithium battery of electric vehicle


    Additional title:

    一种用于电动车辆锂电池的电量信息显示装置


    Contributors:
    WU JIAXI (author) / TAN HAIYAN (author) / TAN JIN (author)

    Publication date :

    2022-09-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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