The invention provides a high-voltage interlocking loop and a detection method and device thereof, and relates to the technical field of electric automobiles. The high-voltage interlocking loop comprises a controller and a plurality of high-voltage loads; wherein a sampling resistor is arranged in an interlocking port of each high-voltage load; each sampling resistor is respectively connected in parallel with two ends of the controller; and the controller is used for supplying power to the sampling resistor and collecting the current of the sampling resistor. According to the scheme, based on a parallel structure, the current of the sampling resistor is collected, so that a high-voltage load with a fault on a high-voltage interlocking loop can be quickly identified, and effective high-voltage protection is carried out.

    本发明提供了一种高压互锁回路及其检测方法、装置,涉及电动汽车技术领域,所述高压互锁回路包括:控制器和多个高压负载;其中,每个所述高压负载的互锁端口内部设置有采样电阻;每个所述采样电阻分别并联于所述控制器的两端;所述控制器用于为所述采样电阻供电,并采集所述采样电阻的电流。本发明的方案采用并联式结构,通过采集采样电阻的电流,能够快速识别高压互锁回路上发生故障的高压负载,进行有效的高压保护。


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    Title :

    High-voltage interlocking loop and detection method and device thereof


    Additional title:

    一种高压互锁回路及其检测方法、装置


    Contributors:
    ZHI LI (author)

    Publication date :

    2021-05-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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