PROBLEM TO BE SOLVED: To allow a piston of a fluid-pressure cylinder to be returned to an initial position even if the piston cannot be returned by a returning spring.SOLUTION: The brake fluid-pressure control device comprises: an inlet valve 13 provided in a first fluid-pressure path led from a master cylinder to a wheel brake; an outlet valve 14 provided in a second fluid-pressure path led from the wheel brake to the master cylinder; a pump 17, provided in the second fluid-pressure path, which pressure-feeds brake fluid toward the master cylinder; a motor 18 for driving the pump 17; and a control portion 100 for controlling the inlet valve 13, the outlet valve 14 and the motor 18. The control portion 100 has a returning control portion 150 that executes returning control by which the motor 18 is driven to retreat the piston, when the piston of the master cylinder is at an advance position to which the piston of the master cylinder advances from an initial position and the piston cannot be retreated by actuating the motor.SELECTED DRAWING: Figure 4

    【課題】戻しバネにより液圧シリンダのピストンが戻らなくなった場合であっても、ピストンを初期位置に戻す。【解決手段】マスタシリンダから車輪ブレーキへの第1液圧路に設けられた入口弁13と、車輪ブレーキからマスタシリンダへの第2液圧路に設けられた出口弁14と、第2液圧路に設けられ、マスタシリンダへ向けてブレーキ液を圧送するためのポンプ17と、ポンプ17を駆動するモータ18と、入口弁13、出口弁14およびモータ18を制御する制御部100とを備えるブレーキ液圧制御装置である。制御部100は、マスタシリンダのピストンが初期位置よりも前進した前進位置にあり、かつ、電動モータの作動でピストンを後退させることができない場合に、モータ18を駆動してピストンを後退させる戻し制御を実行する戻し制御部150を有する。【選択図】図4


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    Title :

    BRAKE FLUID PRESSURE CONTROL DEVICE AND BRAKE SYSTEM


    Additional title:

    ブレーキ液圧制御装置およびブレーキシステム


    Contributors:

    Publication date :

    2017-10-05


    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



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