PROBLEM TO BE SOLVED: To accurately detect insulation abnormality of a vehicle.SOLUTION: An insulation abnormality detection device comprises a measurement unit, an acquisition unit and a detection unit. The measurement unit measures an insulation resistance of a vehicle from voltage of a capacitor charged by serially connecting body grounding of a power supply and the capacitor, which are mounted on the vehicle, and the vehicle. The acquisition unit acquires, from an external device, total voltage of the power supply when the insulation resistance of the vehicle is measured by the measurement unit. The detection unit detects an insulation abnormality of the vehicle according to the total voltage of the power supply acquired by the acquisition unit and the insulation resistance of the vehicle measured by the measurement unit. The acquisition unit acquires, from the external device, boosted voltage generated by a booster circuit to boost output voltage of the power supply mounted on the vehicle when the insulation resistance of the vehicle is measured by the measurement unit. According to the boosted voltage acquired by the acquisition unit, the detection unit detects the insulation abnormality of the vehicle from the insulation resistance of the vehicle measured by the measurement unit.SELECTED DRAWING: Figure 1

    【課題】車両の絶縁異常検知を精度よく行う。【解決手段】絶縁異常検知装置は、計測部、取得部、検知部を含む。計測部は、車両に搭載される、電源、キャパシタ及び車両のボディ接地を直列接続させて充電されるキャパシタの電圧から車両の絶縁抵抗を計測する。取得部は、計測部により車両の絶縁抵抗が計測された際の電源の総電圧を、外部装置から取得する。検知部は、取得部により取得された電源の総電圧と、計測部により計測された車両の絶縁抵抗とから、車両の絶縁異常を検知する。また、取得部は、計測部により車両の絶縁抵抗が計測された際の、車両に搭載される電源の出力電圧を昇圧する昇圧回路による昇圧電圧を、外部装置から取得する。そして、検知部は、取得部により取得された昇圧電圧に応じて、計測部により計測された車両の絶縁抵抗から車両の絶縁異常を検知する。【選択図】図1


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    Titel :

    INSULATION ABNORMALITY DETECTION DEVICE AND INSULATION ABNORMALITY DETECTION METHOD


    Weitere Titelangaben:

    絶縁異常検知装置及び絶縁異常検知方法


    Beteiligte:
    KAWANAKA SHOTA (Autor:in) / TAMURA SHO (Autor:in)

    Erscheinungsdatum :

    2017-06-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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