This project reviews the impacts that misalignment can have on commercial vehicle operations, and identifies possible areas of research related to conducting vehicle alignment under dynamic operating conditions. Impacts of misalignment on steer axles (toe, caster, and camber) were examined, as well as total vehicle alignment conditions involving thrust and scrub conditions that can occur on drive axles (tractors) and trailer axles. The current state of the practice is explored for how vehicle alignment is measured and set by both truck original equipment manufacturers (at the factory) and by fleet maintenance staff (in the field). A review of latest generation equipment and instrumentation for performing total vehicle alignment is also presented. Two broad areas of potential research were identified: (1) Evaluation of Static Alignment Settings; and (2) Development of Onboard Dynamic Capability. The first area of research focuses on determining whether factory alignment settings are indeed optimal under varying conditions, and on documenting the performance impacts of altering alignment settings. The second area of research involves developing prototype equipment that would allow for real-time changes in alignment settings in response to varying speed, load, and road geometry conditions.


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    Titel :

    Tractor Trailer Dynamic Alignment Research. Task Order 6 of the Commercial Motor Vehicle Technology Diagnostics and Performance Enhancement Program


    Beteiligte:
    R. M. Kreeb (Autor:in) / S. Brady (Autor:in)

    Erscheinungsdatum :

    2006


    Format / Umfang :

    30 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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