A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.


    Access

    Download


    Export, share and cite



    Title :

    Pneumatic brake assistance arrangement


    Contributors:

    Publication date :

    2016-05-10


    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



    Pneumatic brake assistance arrangement

    SQUARCINI RAFFAELE / BARTALESI ELISA / SQUARCINI | European Patent Office | 2015

    Free access

    PNEUMATIC BRAKE ASSISTANCE ARRANGEMENT

    SQUARCINI RAFFAELE / BARTALESI ELISA / BUCCHI FRANCESCO | European Patent Office | 2015

    Free access


    BRAKE ASSISTANCE SYSTEM AND BRAKE ASSISTANCE METHOD

    KIM SUK HYUN / HONG JU PYO / RYU MYUNG JAE | European Patent Office | 2023

    Free access

    PNEUMATIC BRAKE SYSTEM

    TANAKA KATSUNORI / OTA YUSUKE | European Patent Office | 2022

    Free access