The ride dynamics of articulated heavy trucks were studied to assess the benefits of applying electronically controlled suspension elements. Computer simulations were used to compare passive, two-state and continuous semiactive, and fully active suspensions. These results prompted further work to develop a prototype active suspension, operating according to a limited bandwidth strategy, which was tested on a full size, single-wheel-station vibration rig. With the active prototype, root mean square body vertical acceleration was 30 % lower than with a production air suspension, during a test simulating travel over a very good road profile. RMS dynamic tyre forces, generated by the active prototype were similarly 20 % lower. Mean power consumption during this test was 1.1 kW. Further consideration of the limited bandwidth active suspension led to the invention of a substantially passive equivalent. This passive equivalent was also tested and gave results indistinguishable from those of the active prototype.


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    Title :

    Investigations into alternative suspensions for commercial vehicles


    Additional title:

    Untersuchungen alternativer Federungsarten für Nutzfahrzeuge


    Contributors:

    Published in:

    Publication date :

    1993


    Size :

    9 Seiten, 9 Bilder, 7 Tabellen, 13 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Investigations into Alternative Suspensions for Commercial Vehicles

    Crolla, David A. / Wilkinson, Paul A. | SAE Technical Papers | 1993


    Investigations into Alternative Suspensions for Commercial Vehicles

    Wilkinson, P. A. / Crolla, D. A. / SAE | British Library Conference Proceedings | 1993


    Investigations into alternative suspensions for commercial vehicles

    Wilkinson,P.A. / Crolla,D.A. / Motor Industry Research Assoc.,MIRA,GB et al. | Automotive engineering | 1993


    Report on suspensions for commercial vehicles

    Olley, M. | Engineering Index Backfile | 1955


    REPORT ON SUSPENSIONS FOR COMMERCIAL VEHICLES

    OLLEY, MAURICE | SAE Technical Papers | 1955