To provide a self-propelled working vehicle capable of detecting an abnormal condition of a parking brake, the abnormal condition possibly causing unexpected movement of a vehicle body in a parking state.SOLUTION: A self-propelled working vehicle includes a parking brake control part 52 to control a parking brake 21 provided on a drive shaft of a variable travel power supply unit PSU into a braking state or a non-braking state, a vehicle body state management part 53 to manage the braking state or the non-braking state of the parking brake 21 as a vehicle body state, and a brake abnormality determination part 54 to determine abnormality of the parking brake 21 on the basis of revolution of the drive shaft and the vehicle body state. The brake abnormality determination part 54 determines the abnormality of the parking brake 21 if revolution of the drive shaft is detected in the braking state of the parking brake 21.SELECTED DRAWING: Figure 4

    【課題】駐車状態の車体が不測に動く原因となるパーキングブレーキの異常事態を検知することができる自走作業車を提供する。【解決手段】自走作業車は、可変走行動力供給ユニットPSUの伝動軸に設けられたパーキングブレーキ21を制動状態または非制動状態に制御するパーキングブレーキ制御部52と、パーキングブレーキ21を制動状態または非制動状態を車体状態として管理する車体状態管理部53と、伝動軸の回転と車体状態とに基づいて、パーキングブレーキ21の異常を判定するブレーキ異常判定部54とを備える。ブレーキ異常判定部54は、パーキングブレーキ21の制動状態において伝動軸の回転が検出された場合、パーキングブレーキ21の異常を判定する。【選択図】図4


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    Title :

    SELF-PROPELLED WORKING VEHICLE


    Additional title:

    自走作業車


    Contributors:

    Publication date :

    2022-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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