To detect abnormality in a power transmission coil of a power supply device in a simple configuration.SOLUTION: An abnormality diagnostic system 10 comprises: an abnormality determination unit 64 for determining presence or absence of abnormality in a group of power transmission coils 45 arranged in a predetermined area of a road so as to transmit power to a power reception coil 52 of a vehicle 3; and a magnetic field detector 7 for detecting strength of a leakage magnetic field when alternating current magnetic field is radiated from a first power transmission coil that is subject to abnormality determination among the group of power transmitting coils. The abnormality determination unit determines that an abnormality has occurred in the first power transmission coil when an output value of the magnetic field detector is a predetermined threshold value or more, to correct at least one of the output value and the threshold value on the basis of a positional relation between the first power transmission coil and the magnetic field detector.SELECTED DRAWING: Figure 5

    【課題】給電装置の送電コイルの異常を簡易的な構成で検出する。【解決手段】異常診断システム10は、車両3の受電コイル52に電力を送電するように道路の所定範囲に配置された一群の送電コイル45の異常の有無を判定する異常判定部64と、一群の送電コイルのうち異常判定対象の第1の送電コイルから交流磁界が放射されているときの漏洩磁界の強度を検出する磁界検出器7とを備える。異常判定部は、磁界検出器の出力値が所定の閾値以上である場合に第1の送電コイルに異常が生じていると判定し、第1の送電コイルと磁界検出器との位置関係に基づいて出力値及び閾値の少なくとも一方を補正する。【選択図】図5


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    Title :

    ABNORMALITY DIAGNOSTIC SYSTEM, AND ABNORMALITY DIAGNOSTIC METHOD


    Additional title:

    異常診断システム及び異常判定方法



    Publication date :

    2023-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES




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