The invention discloses a fault detection circuit and a fault detection method, and relates to the field of batteries. The fault detection circuit comprises: a first switch module arranged between a first detection power supply and a first node; a second switch module which is arranged between the second detection power supply and the second node; a first sampling module, wherein the other end ofthe first sampling module is connected with a reference voltage end; a second sampling module, wherein the other end of the second sampling module is connected with a reference voltage end; and a detection module which is used for determining the fault of the to-be-detected load according to the on-off states of the first switch module and the second switch module and the target sampling data under the condition that the first driving module and the second driving module are both in the off state. According to the fault detection circuit and the fault detection method, the type of the load fault can be determined.

    本发明公开了故障检测电路和故障检测方法,涉及电池领域。该故障检测电路包括:第一开关模块,设置于第一检测电源与第一节点之间;第二开关模块,设置于第二检测电源与第二节点之间;第一采样模块,第一采样模块的另一端连接参考基准电压端;第二采样模块,第二采样模块的另一端连接参考基准电压端;检测模块,用于在第一驱动模块和第二驱动模块均处于断开状态的条件下,根据第一开关模块和第二开关模块的通断状态,以及目标采样数据,确定待检测负载的故障。根据本发明的故障检测电路和故障检测方法,可以确定负载故障的类型。


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    Title :

    Fault detection circuit and fault detection method


    Additional title:

    故障检测电路和故障检测方法


    Contributors:
    FU YANHUI (author) / CHU LE (author) / LIU CHANGJIAN (author)

    Publication date :

    2020-10-13


    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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