The invention discloses a high-voltage interlocking detection circuit, a battery system and an electric vehicle. The high-voltage interlocking detection circuit comprises a first voltage acquisition circuit, a second voltage acquisition circuit and a constant current circuit, the input end of the first voltage acquisition circuit is connected to the input end of the high-voltage plug-in interface, the output end of the first voltage acquisition circuit is connected to a sampling interface of the MCU, and the first voltage acquisition circuit is used for detecting interlocking input voltage of high-voltage components; the input end of the second voltage acquisition circuit is connected to the output end of the high-voltage plug-in interface, the output end of the second voltage acquisition circuit is connected to the sampling interface of the MCU, and the second voltage acquisition circuit is used for detecting voltage output by interlocking of high-voltage components; the input end of the constant current circuit is externally connected with a power supply, and the output end is connected to the output end of the high-voltage plug-in interface for providing stable working current for the detection circuit; the invention discloses a high-voltage interlocking detection circuit, a battery system and an electric vehicle. System operation abnormity caused by abnormal states of high-voltage plug-ins is efficiently and quickly detected.

    本发明公开了一种高压互锁检测电路、电池系统以及电动汽车,第一电压采集电路、第二电压采集电路以及恒流电路;第一电压采集电路的输入端连接到高压插件接口的输入端、输出端连接到微控制单元MCU的采样接口,用于对高压部件互锁输入的电压检测;第二电压采集电路的输入端连接到高压插件接口的输出端、输出端连接到微控制单元MCU的采样接口,用于对高压部件互锁输出的电压检测;恒流电路的输入端外接电源、输出端连接到高压插件接口的输出端,用于为检测电路提供稳定的工作电流;高压互锁检测电路、电池系统以及电动汽车,高效快捷的检测高压插件状态异常带来的系统运行异常。


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    Title :

    High-voltage interlocking detection circuit, battery system and electric automobile


    Additional title:

    一种高压互锁检测电路、电池系统以及电动汽车


    Contributors:

    Publication date :

    2025-03-18


    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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