To provide an electrically-driven type tractor which can detect abnormality due to existence of an obstacle between itself and a carriage or between carriages without provision of equipment required for abnormality detection on the carriage.SOLUTION: An electrically-driven type tractor comprises a vehicle body equipped with a drive wheel, a drive motor 14 which is mounted on the vehicle body and drives the drive wheel, and a control unit 16 for controlling the drive motor 14, and can tow a carriage with a load-carrying platform. In the tractor, the control unit 16 has: a current value detection part 21 which detects a current value of the drive motor 14; and an abnormality determination part 30 which determines occurrence of abnormality that an obstacle exists in front of the carriage, when the carriage is connected to the vehicle body, and when a current rise value, that is determined on the basis of a current value during travel detected by the current value detection part 21 is a preset threshold or more.SELECTED DRAWING: Figure 2

    【課題】台車に異常検知のために必要な機器を設けることなく、電動式牽引車と台車との間あるいは台車間における障害物の存在による異常を検知することができる電動式牽引車の提供にある。【解決手段】駆動輪を備える車体と、車体に搭載され、駆動輪を駆動する駆動モータ14と、駆動モータ14を制御する制御装置16と、を備え、荷台を有する台車を牽引可能とする電動式牽引車において、制御装置16は、駆動モータ14の電流値を検出する電流値検出部21と、車体に台車が連結されているとき、電流値検出部21により検出される走行時の電流値に基づいて求められる電流上昇値が、予め設定された閾値以上のとき、台車の前方に障害物が存在する異常と判別する異常判別部30と、を有した。【選択図】 図2


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    Title :

    ELECTRICALLY-DRIVEN TYPE TRACTOR


    Additional title:

    電動式牽引車


    Contributors:

    Publication date :

    2022-04-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B62D MOTOR VEHICLES , Motorfahrzeuge



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