To prevent erroneous information from being provided to a driver, in relation to estimation of a deterioration state of a secondary battery.SOLUTION: A diagnostic device 100 for diagnosing a battery 40 installed to an electric vehicle 10 includes: an estimation unit 301 for estimating a deterioration state of a battery 40; a lead-out unit 302 for leading out an index value indicating validity of the data to be used for estimating a deterioration state; and a notification unit 303 for giving a notification of a cause of deteriorated accuracy of an estimate when it is determined from the index value that accuracy of an estimate is poor.SELECTED DRAWING: Figure 3

    【課題】二次電池の劣化状態の推定に関して、ドライバーに誤った情報を与えないようにする。【解決手段】電動車両10に設けられたバッテリ40を診断する診断装置100において、バッテリ40の劣化状態を推定する推定部301と、劣化状態の推定に用いられるデータの有効性を示す指標値を導出する導出部302と、指標値により推定値の精度が低いと判断される場合、推定値の精度を低下させている原因を通知する通知部303とを備える。【選択図】図3


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    Title :

    DIAGNOSTIC DEVICE, DIAGNOSTIC SYSTEM, DIAGNOSTIC METHOD AND PROGRAM


    Additional title:

    診断装置、診断システム、診断方法、及びプログラム


    Contributors:

    Publication date :

    2021-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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