To stop operation of an electric motor when an abnormal state occurs even after the start of application of a resilient force of an elastic member to a linear motion member when a parking brake state is released.SOLUTION: In control at the time of parking brake state release, a control unit C sets first and second setting currents as thresholds of a detection current even after the start of application of a resilient force to a linear motion member of an electric actuator even in the other states than an unloaded state, sets first and second predetermined upper limit times and a predetermined lower limit time as thresholds for elapsed time, and thereby, detects an abnormal state to notify a vehicle user of the abnormal state, and stops operation of the electric motor 40.SELECTED DRAWING: Figure 8

    【課題】パーキングブレーキ状態を解除する際に直動部材に弾性部材の弾発力が作用し始めてからも異常状態発生時に電動モータの作動を停止させる。【解決手段】制御ユニットCは、パーキングブレーキ状態解除時の制御において、無負荷状態以外でも電動アクチュエータの直動部材に弾性部材の弾発力が作用し始めてからも、検出電流の閾値として第1および第2設定電流を設定するとともに、経過時間にも第1および第2の所定上限時間および所定下限時間を閾値として設定することで、異常状態を検知してそれを車両ユーザーに報知するとともに電動モータ40の作動を停止する。【選択図】 図8


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    Title :

    VEHICLE ELECTRIC PARKING BRAKE DEVICE


    Additional title:

    車両用電動パーキングブレーキ装置


    Contributors:
    USUI KOJI (author) / UNO MASATO (author) / TAKAHASHI MARI (author)

    Publication date :

    2021-10-11


    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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