The invention is directed to a motor vehicle vacuum pump (10), comprising - a pumping unit (24) with a rotatable pump rotor (26), - an electronically commutated electric motor (30) for driving the pump rotor (26), and - a pump control unit (34) for controlling a variable rotational motor speed (MS) of the electric motor (30), wherein the pump control unit (34) comprises - a deceleration map storage (40) storing a deceleration map (42) with at least one time-dependent and/or motor-speed-dependent motor deceleration parameter (DP1,DP2), and - a rotor-stopping control module (44) which is connected with the deceleration map storage (40) and which is configured to actively control the variable rotational motor speed (MS) based on the deceleration map (42) during a rotor stopping process (RSP). The pump control unit (34) according to the present invention provides an actively controlled rotor stopping process (RSP) which reliably avoids an abrupt venting of the motor vehicle vacuum pump (10) and thus minimizes humidity and contamination intrusion into the vacuum pump and minimizes noise. This provides a reliable and low-noise motor vehicle vacuum pump (10).


    Access

    Download


    Export, share and cite



    Title :

    MOTOR VEHICLE VACUUM PUMP


    Additional title:

    KRAFTFAHRZEUG-VAKUUMPUMPE
    POMPE À VIDE DE VÉHICULE AUTOMOBILE


    Contributors:

    Publication date :

    2024-02-28


    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 / F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten



    MOTOR VEHICLE VACUUM PUMP

    PIOTROWSKI MARCEL / AL-HASAN NABIL SALIM / RUSS STANISLAUS et al. | European Patent Office | 2021

    Free access

    MOTOR VEHICLE VACUUM PUMP

    PIOTROWSKI MARCEL / AL-HASAN NABIL SALIM / RUSS STANISLAUS et al. | European Patent Office | 2021

    Free access

    MOTOR VEHICLE VACUUM PUMP

    PIOTROWSKI MARCEL / AL-HASAN NABIL SALIM / RUSS STANISLAUS et al. | European Patent Office | 2024

    Free access

    Motor vehicle vacuum pump

    PIOTROWSKI MICHAEL / AL-HASAN NABIL SALIM / RUSS STEFAN et al. | European Patent Office | 2023

    Free access

    MOTOR VEHICLE VACUUM PUMP

    PIOTROWSKI MARCEL / AL-HASAN NABIL SALIM / RUSS STANISLAUS et al. | European Patent Office | 2024

    Free access