To diagnose a sign of a failure in an air compressor or a relevant instrument thereof regardless of operation and linear conditions of a vehicle.SOLUTION: A failure sign diagnostic device 100 comprises: a data input unit 110 which inputs operation data of an air compressor 210 and pressure data of a relevant instrument; an operation time calculation unit 120 which calculates an actual operation time of the air compressor 210 on the basis of the operation data; an integration pressure displacement amount calculation unit 130 which calculates an integration pressure displacement amount indicating an amount of the compressed air used by the relevant instrument with respect to the operation of the air compressor 210 for each relevant instrument on the basis of the operation data and pressure data; an operation time prediction model unit 140 which calculates a predicted operation time of the air compressor 210 from a prediction model using a feature amount which is the integration pressure displacement amount of each relevant instrument; and a failure sign diagnostic unit 150 which diagnoses the presence/absence of a failure sign in at least one of the air compressor 210 and the relevant instrument on the basis of a comparison result between the actual operation time and the predicted operation time.SELECTED DRAWING: Figure 1

    【課題】車両の運用及び線形条件に関わらず、空気圧縮機またはその関連機器における故障の予兆を診断する。【解決手段】故障予兆診断装置100は、空気圧縮機210の稼働データ及び関連機器の圧力データを入力するデータ入力部110と、稼働データに基づいて空気圧縮機210の実稼働時間を算出する稼働時間算出部120と、稼働データ及び圧力データに基づいて、関連機器ごとに、空気圧縮機210の稼働に対して当該関連機器が使用した圧縮空気の量を示す積算圧力変位量を算出する積算圧力変位量算出部130と、各関連機器の積算圧力変位量を特徴量として、当該特徴量を使用する予測モデルから空気圧縮機210の予測稼働時間を算出する稼働時間予測モデル部140と、実稼働時間と予測稼働時間との比較結果に基づいて、空気圧縮機210または関連機器の少なくとも何れかにおける故障予兆の有無を診断する故障予兆診断部150と、を備える。【選択図】図1


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    Title :

    FAILURE SIGN DIAGNOSTIC DEVICE AND FAILURE SIGN DIAGNOSTIC METHOD


    Additional title:

    故障予兆診断装置及び故障予兆診断方法


    Contributors:
    KITAI SASUGA (author) / MIYAUCHI TSUTOMU (author) / KOIKE JUN (author) / KUDO TAKUMI (author)

    Publication date :

    2023-09-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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