In an effort to improve fuel economy for light duty trucks, an initiative was undertaken to reduce frictional losses in rear axle through use of low friction lubricants and novel surface finish on gears while maintaining durability. This paper describes the effect of rear axle lubricants on fuel economy. A laboratory rig was set up using a full size pick-up truck rear axle to measure axle efficiency and lubricant temperature with various SAE 75W-90 and SAE 75W-140 viscosity grade lubricants. Traction coefficients of lubricants were also measured at various temperatures using a laboratory ball and disk contact geometry. An improvement in axle efficiency up to 4.3% was observed over current Ford factory fill SAE 75W-140 lubricant depending on speed, torque and the type of lubricant used. The temperature of the lubricants was also lower than that with the current factory fill. This is important for maintaining bearing life and overall durability of the rear axle. Chassis roll fuel economy tests conducted using a 5.4L V-8 full size sport utility vehicle (SUV) showed up to 1.4% improvement in the Federal Test Protocol (FTP) metro/highway (M/H) cycle along with lower axle temperature.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fuel Economy Improvement Through Frictional Loss Reduction in Light Duty Truck Rear Axle


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Gangopadhyay, Arup (Autor:in) / Sorab, Jagadish (Autor:in) / Schroder, Michael (Autor:in) / Jensen, Ron (Autor:in) / Asaro, Sam (Autor:in)

    Kongress:

    SAE Powertrain & Fluid Systems Conference & Exhibition ; 2002



    Erscheinungsdatum :

    2002-10-21




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Fuel economy improvement through frictional loss reduction in light duty truck rear axle

    Gangopadhyay,A. / Asaro,S. / Schroder,M. et al. | Kraftfahrwesen | 2002


    Fuel economy improvement through frictional loss reduction in light duty truck rear axle

    Gangopadhyay, A. / Asaro, S. / Schroder, M. et al. | Tema Archiv | 2002


    Light Duty Truck Rear Axle Thermal Modeling

    Nahid, Mohammad / Saha, Joydip / Rahman, Sadek | British Library Conference Proceedings | 2020


    Light Duty Truck Rear Axle Thermal Modeling

    Nahid, Mohammad / Saha, Joydip / Rahman, Sadek | British Library Conference Proceedings | 2020


    Light Duty Truck Rear Axle Thermal Modeling

    Saha, Joydip / Nahid, Mohammad / Rahman, Sadek | SAE Technical Papers | 2020