There is mounting theoretical evidence to suggest that preview control can be of substantial benefit to a semi-active suspension for random road inputs. In this paper, the benefits of wheel-base preview control are measured experimentally, using a prototype semi-active damper in a half-car 'Hardware-in-the-loop' (HiL) rig with a planar two-axle heavy vehicle model. The benefits of preview control using the prototype semi-active damper are found to be less than theoretically possible, due to the phase lag between the demanded and achieved damping force. It is shown that the performance of the prototype damper can be improved significantly by having a theoretical simulation running ahead of the HiL vehicle. The theoretical simulation is used to predict the demanded damper force for the HiL vehicle, and thereby compensate for the phase lag in the prototype damper.


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    Titel :

    Experimental investigation of preview control


    Beteiligte:
    Kitching, K.J. (Autor:in) / Cebon, D. (Autor:in) / Cole, D.J. (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 32 , 6 ; 459-478


    Erscheinungsdatum :

    1999


    Format / Umfang :

    20 Seiten, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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