To provide a sensor abnormality determination device for a four-wheel drive vehicle which can determine, from a first sensor for detecting a connection/disconnection state of a first connection/disconnection device and a rotation sensor for detecting rotation of a propeller shaft, whether abnormality is in the first sensor or in a mechanical switching position of the first connection/disconnection device.SOLUTION: It is determined by a first sensor abnormality determination unit 108 that abnormality is in a first sensor 102, when: a vehicle is in a four-wheel drive state; rotation of a propeller shaft 28 detected by a rotation sensor 104 is not stopped; and in the state of a first clutch 24 showing a disconnection state detected by the first sensor 102, after a second clutch 32 is switched to a disconnection state, rotation of the propeller shaft 28 detected by the rotation sensor 104 is not stopped. Thus, it becomes clear that the abnormality is not in the mechanical switching position of the first clutch 24 but is in the first sensor 102.SELECTED DRAWING: Figure 1

    【課題】第1断接装置の断接状態を検出する第1センサとプロペラシャフトの回転を検出する回転センサとから、第1センサの異常であるか第1断接装置の機械的切換位置の異常であるかを判定することができる四輪駆動車両のセンサ異常判定装置を提供する。【解決手段】第1センサ異常判定部108により、四輪駆動状態であり、且つ回転センサ104により検出されたプロペラシャフト28の回転が停止しておらず、第1センサ102により検出された第1クラッチ24が断状態を示す状態で、第2クラッチ32を断状態へ切り換えた後に、回転センサ104により検出されたプロペラシャフト28の回転が停止しない場合は、第1センサ102の異常であることが判定される。これにより、第1クラッチ24の機械的切換位置の異常ではなく第1センサ102の異常であることが明確となる。【選択図】図1


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    Title :

    SENSOR ABNORMALITY DETERMINATION DEVICE FOR FOUR-WHEEL DRIVE VEHICLE


    Additional title:

    四輪駆動車両のセンサ異常判定装置


    Contributors:

    Publication date :

    2021-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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