A valve system of a braking device provided with a stroke simulator (64), which is located at the end of a liquid flow passage (41) connected to a connection passage (22d) for making a master cylinder (34) communicate with a wheel cylinder (32), and a third shut-off valve (62), that is a solenoid valve and performs opening and closing of a communication between the master cylinder (34) and the stroke simulator (64), wherein the third shut-off valve (62) is a normally closed valve; and the valve system opens the third shut-off valve (62) by applying a start-up voltage, thereafter keeps the open state of the third shut-off valve (62) by alternately applying a holding voltage lower than the start-up voltage and either the start-up voltage or an intermediate voltage, in order to prevent heat generated in the third shut-off valve (62) from becoming excessively high when keeping the open state of the valve (62).


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    Title :

    Valve system of braking device


    Additional title:

    Ventilsystem einer Bremsvorrichtung
    Système de soupape d'un dispositif de freinage


    Contributors:

    Publication date :

    2017-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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