PROBLEM TO BE SOLVED: To provide an abnormality diagnostic device for diagnosing the abnormality of temperature sensors provided in a vehicle equipped with a left and right motor drive devices, with which it is possible to determine the abnormality of each temperature sensor individually.SOLUTION: This abnormality diagnostic device diagnoses the abnormality of temperature sensors provided in a left and right independently driven vehicle. Provided as the temperature sensors are left and right motor temperature sensors S, Sand left and right cooling oil temperature sensors S, S. Included are: temperature comparison means 23 for comparing prescribed two temperatures, among the temperatures of motors 6 and the temperatures of cooling oils, with each other at initial diagnosis time; comparison to average value means 26 for comparing the temperature of each sensor and the average value of all temperatures with each other; and temperature sensor individual abnormality determination means 25 for individually determining the presence of abnormality in the temperature sensors S, S, S, Sfrom the result of comparison by the temperature comparison means 23 and the result of comparison by the comparison to average value means 26.SELECTED DRAWING: Figure 9

    【課題】左右のモータ駆動装置を備えた車両に設けられる温度センサの異常を診断する異常診断装置において、各温度センサの異常を個別に判断することができる異常診断装置を提供する。【解決手段】この異常診断装置は、左右独立駆動式の車両に設けられる温度センサの異常を診断する。温度センサとして、左右のモータ温度センサSaL,SaRと、左右の冷却油温度センサSbL,SbRとを備える。初期診断時に、各モータ6の温度および各冷却油の温度のうち、定められた二つの温度を互いに比較する温度比較手段23と、各センサの温度と、全ての温度の平均値を互いに比較する対平均値比較手段26と、温度比較手段23で比較された結果と、対平均値比較手段26で比較された結果とから各温度センサSaL,SaR,SbL,SbRの異常の有無を個別に判断する温度センサ個別異常判断手段25とを備えている。【選択図】図9


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    Title :

    ABNORMALITY DIAGNOSTIC DEVICE


    Additional title:

    異常診断装置


    Contributors:

    Publication date :

    2018-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01K MEASURING TEMPERATURE , Messen der Temperatur / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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