A dynamometer test methodology was developed for evaluation of HMMWV axle efficiency with hypoid gearsets, comparing those having various degrees of superfinish versus new production axles as well as used axles removed at depot maintenance. To ensure real-world applicability, a HMMWV variant vehicle model was created and simulated over a peacetime vehicle duty cycle, which was developed to represent a mission scenario. In addition, tractive effort calculations were then used to determine the maximum input torques. The drive cycle developed above was modified into two different profiles having varying degrees of torque variability to determine if the degree of variability would have a significant influence on efficiency in the transient dynamometer tests. Additionally, steady state efficiency performance is measured at four input pinion speeds from 700-2500 rpm, five input torques from 50 - 400 N⋅m, and two sump temperatures, 80°C and 110°C. This paper will summarize the vehicle modeling and duty cycle development. It will detail the testing configuration and methodology. Finally, it will summarize and explain the results and discuss the next steps.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    HMMWV Axle Testing Methodology to Determine Efficiency Improvements with Superfinished Hypoids


    Weitere Titelangaben:

    Sae International Journal of Passenger Cars. Mechanical Systems
    Sae Int. J. Passeng. Cars - Mech. Syst


    Beteiligte:
    Dykas, Brian David (Autor:in) / Rizzo, Denise M. (Autor:in) / Fussner, Doug (Autor:in) / Riggs, Mark (Autor:in) / McDonnell, Randy (Autor:in)

    Kongress:

    SAE 2013 World Congress & Exhibition ; 2013



    Erscheinungsdatum :

    2013-04-08


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Investigation of Carrier HMMWV M1151 Dynamics

    Jonevicius, V. / Pincevicius, A. / Montvydas, D. et al. | British Library Conference Proceedings | 2011


    Focus on Teledynes HMMWV

    US Army / Teledyne,US | Kraftfahrwesen | 1983


    METHOD FOR FORMING AN ASSEMBLY HAVING MATING SUPERFINISHED COMPONENTS

    ROTHSTEIN MOSHE / PADFIELD CORY J / PADFIELD TOBY V | Europäisches Patentamt | 2020

    Freier Zugriff

    Investigation of Carrier HMMWV M1151 Dynamics

    Jonevicius, V. / Pincevicius, A. / Montvydas, D. et al. | British Library Conference Proceedings | 2011


    US-Heer waehlt HMMWV-Auftragnehmer

    US Army,US / AM General,US | Kraftfahrwesen | 1983