An abnormality detection device includes a detection circuit unit, a protection circuit unit, and an abnormality determination unit. The detection circuit unit includes: a voltage detection circuit and a current detection circuit that generate, as analog signals, detection values indicating a current and a voltage at a predetermined position of a vehicle-mounted power supply device. An A/D converter converts the detection value into a digital signal. The protection circuit unit performs a predetermined protection operation on the vehicle-mounted power supply device if a voltage or a current of an input path or an output path of a voltage converting unit has an abnormal value. The abnormality determination unit makes at least one of the detection circuit unit and the protection circuit unit perform a predetermined diagnosis operation, and determines, based on a result of the diagnosis operation, whether the detection circuit unit and the protection circuit unit is abnormal.


    Access

    Download


    Export, share and cite



    Title :

    Abnormality detection device and vehicle-mounted power supply device


    Contributors:

    Publication date :

    2020-03-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    ABNORMALITY DETECTION DEVICE AND VEHICLE-MOUNTED POWER SUPPLY DEVICE

    TERADA NORIKO | European Patent Office | 2019

    Free access


    VEHICLE-MOUNTED DEVICE, ABNORMALITY DETECTING METHOD, AND ABNORMALITY DETECTING PROGRAM

    KITAGAWA KAZUKI / ASHIBE KENTARO / SHIMIZU YOSUKE et al. | European Patent Office | 2022

    Free access

    VEHICLE-MOUNTED DEVICE, ABNORMALITY DETECTING METHOD, AND ABNORMALITY DETECTING PROGRAM

    KITAGAWA KAZUKI / ASHIBE KENTARO / SHIMIZU YOSUKE et al. | European Patent Office | 2023

    Free access