The University of Texas Center for Electro-mechanics (UT-CEM) has been developing active suspension technology for high-speed off-road applications since 1993. The UT-CEM system uses controlled electromechanical actuators to control vehicle dynamics with passive springs to support vehicle static weight. The program is currently in a full vehicle demonstration phase on a military high mobility multipurpose wheeled vehicle (HMMWV). This paper presents detailed test results for this demonstration vehicle, compared to the conventional passive HMMWV, in a series of tests conducted by the U.S. Army at Yuma Proving Grounds. Extensive data in plotted form are discussed, including accelerometer readings from 6 vehicle mounted accelerometers, corner displacement transducers, and current and power plots for the actuators. Results indicate significant mobility improvements offered by the UT-CEM system, including over five-fold reductions in driver absorbed power (a measure of driver vertical acceleration loading) and a more than 100% increase in cross country ride-limiting speed.


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    Title :

    Electromechanical Suspension Performance Testing


    Additional title:

    Sae Technical Papers


    Contributors:
    Guenin, A. M. (author) / Weeks, D A. (author) / Bresie, D. A. (author) / Beno, J. H. (author) / Raymond, M. E. (author) / Bylsma, W. (author)

    Conference:

    SAE 2001 World Congress ; 2001



    Publication date :

    2001-03-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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