To enable whether or not oil in a trans axle gets low to be confirmed without installing means to directly confirm an oil amount.SOLUTION: An abnormality diagnostic device 40 estimates a coil temperature of a first generator motor in a trans axle on the basis of a measurement of an oil temperature T4 in the trans axle. Then, the abnormality diagnostic device 40 determines that oil in the trans axle gets low when a difference between the measurement of the coil temperature and the estimated coil temperature is equal to or larger than a determination value.SELECTED DRAWING: Figure 2

    【課題】オイル量を直接確認する手段を設けずとも、トランスアクスル内のオイル不足の有無を確認できるようにする。【解決手段】異常診断装置40は、トランスアクスル内のオイル温度T4の測定値に基づき、トランスアクスルに内蔵された第1発電電動機のコイル温度を推定する。そして、異常診断装置40は、コイル温度の測定値と推定値との差が判定値以上であることをもって、トランスアクスル内のオイルの量が不足していると判定している。【選択図】図2


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    Title :

    VEHICLE ABNORMALITY DIAGNOSTIC DEVICE


    Additional title:

    車両の異常診断装置


    Contributors:

    Publication date :

    2022-09-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING



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