To determine whether the cause of abnormality in an automatic transmission lies in viscosity of oil or not.SOLUTION: A control device 40 as an abnormality diagnostic device of an automatic transmission diagnoses the abnormality of an automatic transmission 20 in an own vehicle on the basis of a comparison between an oil temperature of the automatic transmission 20 provided in the own vehicle and an oil temperature of an automatic transmission provided in another vehicle different from the own vehicle. The control device 40 includes a shift characteristic calculation section for calculating a characteristic parameter in changing a shift stage in the automatic transmission 20 provided in the own vehicle, and a cause determination section for determining whether the cause of the abnormality in the automatic transmission 20 lies in viscosity of oil in the automatic transmission 20 or not on the basis of the characteristic parameter calculated by the shift characteristic calculation section.SELECTED DRAWING: Figure 1

    【課題】自動変速機における異常の原因がオイルの粘度にあるか否かを判定可能にする。【解決手段】自動変速機の異常診断装置としての制御装置40は、自車両に設けられた自動変速機20の油温と、該自車両とは異なる他車両に設けられた自動変速機の油温との比較に基づいて自車両における自動変速機20の異常を診断する。制御装置40は、自車両に設けられた自動変速機20において変速段を変更する際の特性パラメータを算出する変速特性算出部と、変速特性算出部によって算出された特性パラメータに基づいて、自動変速機20の異常が該自動変速機20内のオイルの粘度を原因とするか否かを判定する原因判定部とを備える。【選択図】図1


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    Titel :

    ABNORMALITY DIAGNOSTIC DEVICE OF AUTOMATIC TRANSMISSION


    Weitere Titelangaben:

    自動変速機の異常診断装置


    Beteiligte:
    TABATA ATSUSHI (Autor:in) / OKUDA KOICHI (Autor:in) / YAMAMOTO MASASHI (Autor:in) / MAKINO YUKI (Autor:in) / NISHIDA TADASHI (Autor:in)

    Erscheinungsdatum :

    2022-01-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / G16Y



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