The invention relates to a battery protection system for an electric bicycle. The battery protection system comprises a main control chip, a main control power supply module, a temperature acquisition module, a current sampling module, a voltage sampling module and a discharge protection module, the main control chip is used for controlling and coordinating the system; the main control power supply module is connected to a power supply interface of the main control chip through a DC-DC step-down circuit; the temperature acquisition module detects the temperature of the battery; the current sampling module measures the charging or discharging current of the battery through a Hall current sensor; the voltage sampling module is connected to an interface of the main control chip through an analog-to-digital converter, and acquired voltage data is transmitted to the main control chip; and the discharge protection module realizes a discharge protection function by using an Mos tube driving circuit. According to the invention, sparks at the power-on moment can be avoided, and the safety is guaranteed; in addition, functions of over-temperature detection and over-current detection are integrated, so that the discharging safety of the battery is guaranteed.

    本发明涉及一种用于电动自行车的电池保护系统,包括主控芯片、主控电源模块、温度采集模块、电流采样模块、电压采样模块和放电保护模块;主控芯片用于控制和协调系统;主控电源模块通过DC‑DC降压电路连接到主控芯片的供电接口;温度采集模块对电池进行温度检测;电流采样模块通过霍尔电流传感器测量电池的充电或放电电流;电压采样模块通过模数转换器连接到主控芯片的接口,采集的电压数据传输到主控芯片;放电保护模块利用Mos管驱动电路来实现放电保护功能。本发明能够避免上电瞬间的火花,保障了安全性;除此以外,还集成了过温检测,过流检测的功能,保障电池放电安全。


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    Title :

    Battery protection system for electric bicycle


    Additional title:

    一种用于电动自行车的电池保护系统


    Contributors:
    WEI YIDUO (author) / FAN XIAOYI (author) / ZHONG GUOQIANG (author) / TAKAZAWA MANABU (author)

    Publication date :

    2024-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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