In recent years, great attention has been concentrated on the design of semi-active suspension systems from the point of view improving vehicle ride comfort. In this paper, a preview hydro-pneumatic semi-active suspension system of a quarter car model moving along a randomly profiled road surface is investigated. The computer program which controlled the hydro-pneumatic semi-active suspension system was designed only to dissipate energy. Track irregularities are measured by sensors in front of the vehicle, and this information is used by the computer-controlled hydro-pneumatic semi-active suspension system. This means that the deformation of the track can be taken into account when calculating the semi-active control loop. The practical limitations involving hydro-pneumatic semi-active time delay and dead time delay values are considered. Theoretical results for the performance of a passive, hydro-pneumatic semi-active suspension with and without the preview version, are compared. It is shown that the hydro-pneumatic semi-active suspension system, with and without, preview offers worthwhile improvements over the passive suspension system.


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    Title :

    A theoretical study of the hydro-pneumatic semi-active suspension system with preview


    Additional title:

    Theoretische Untersuchung eines semiaktiven hydropneumatischen Fahrwerks mit Vorausschau


    Contributors:

    Published in:

    Heavy Vehicle Systems ; 5 , 2 ; 167-180


    Publication date :

    1998


    Size :

    14 Seiten, 9 Bilder, 1 Tabelle, 16 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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