The invention relates to the technical field of electric vehicle safety control, and discloses a high-voltage interlocking detection circuit, which comprises a detection module, a first resistor, a plurality of detection resistors and a protection resistor form a resistor series detection circuit; the driving module comprises an adjustable voltage reference and a first triode and outputs a stable current signal to the detection module; the power supply module is used for supplying power to the driving module; the current detection module is used for detecting the detection current flowing through the first resistor. A current type driving module with a similar constant voltage type is realized based on an adjustable voltage reference design, fault diagnosis is carried out by detecting current flowing through a first resistor RS, the anti-interference capability is high, and the circuit is suitable for a long-distance transmission scene; and the state and the fault type of the high-voltage interlocking circuit can be diagnosed, and the production efficiency is improved. The invention further discloses a high-voltage interlocking detection system, a detection method and an electric vehicle.

    本申请涉及电动汽车安全控制技术领域,公开一种高压互锁检测电路,包括,检测模块包括第一电阻、多个检测电阻和保护电阻构成电阻串联检测线路;驱动模块包括可调电压参考和第一三极管,为检测模块输出稳定的电流信号;供电模块用于为驱动模块提供电源;电流检测模块用于检测流经第一电阻的检测电流。基于可调电压参考设计实现了具有类恒压型的电流型驱动模块,通过检测流经第一电阻RS的电流进行故障诊断,抗干扰能力强,适用于远距离传输场景;而且能够诊断高压互锁电路的状态以及故障类型,提高生产效率。本申请还公开了一种高压互锁检测系统、检测方法和电动车辆。


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    Title :

    High-voltage interlocking circuit, vehicle high-voltage interlocking detection system and method and electric vehicle


    Additional title:

    高压互锁电路、车辆高压互锁检测系统及方法和电动车辆


    Contributors:
    TAN SHANWEN (author) / LI JIANQIU (author) / DIAO LUCHUN (author)

    Publication date :

    2025-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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