The short circuit determination circuit (60) includes a current detection unit (61) that detects a current flowing through the power circuit (P), a voltage detection unit (62) that detects a voltage applied to the power circuit (P), a current abnormality determination unit (63) that determines a current abnormality, a voltage abnormality determination unit (64) that determines a voltage abnormality, and a short circuit determination unit (65) that determines a short circuit in the power circuit (P). A current abnormality determination unit (63) determines a current abnormality on the basis of the current value of the current detected by the current detection unit (61) and a predetermined current threshold value, and a voltage abnormality determination unit (64) determines a voltage abnormality on the basis of the voltage value of the voltage detected by the voltage detection unit (62) and a predetermined voltage threshold value. A short circuit determination unit (65) determines an electrical connection abnormality such as a short circuit or a ground fault (electric leakage) on the basis of the determination result determined by the current abnormality determination unit (63) and the determination result determined by the voltage abnormality determination unit (64).

    短路判断电路(60)包括电流检测部(61)、电压检测部(62)、电流异常判断部(63)、电压异常判断部(64)以及短路判断部(65),电流检测部(61)检测流经电力电路(P)的电流,电压检测部(62)检测施加于电力电路(P)的电压,电流异常判断部(63)根据由电流检测部(61)检测到的电流的电流值和预先确定的电流阈值来判断电流异常,电压异常判断部(64)根据由电压检测部(62)检测出的电压的电压值和预先确定的电压阈值来判断电压异常,短路判断部(65)根据由电流异常判断部(63)判断出的判断结果和由电压异常判断部(64)判断出的判断结果来判断短路、接地故障(漏电)等电连接异常。


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    Title :

    Short circuit determination circuit


    Additional title:

    短路判断电路


    Contributors:

    Publication date :

    2025-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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