With the electrification of automobiles, such as hybridization, engines on these vehicles operate more frequently at low oil temperatures, while engines are more specifically run at low engine speed and high load condition for driving vehicles. Hence, engine oils are required to reduce their viscosity at low temperature for friction reduction to improve fuel economy and maintain high temperature viscosity enough to protect engine parts for robustness at the same time. This leads to the improvement of viscosity index, the "ultra-high viscosity index (UHVI)" concept. The novel engine oil technology with a new high performance polymer was investigated. One of experimental oils showed the 100°C viscosity equivalent to SAE 0W-16 grade and the better fuel economy than that of SAE 0W-8 oil by an engine motoring friction test. This study demonstrated the promising performance of the UHVI concept to provide further fuel economy benefit especially for advanced electrified powertrains such as hybrid systems.


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    Titel :

    Fuel Economy Improvement by Engine Oil with Ultra-High Viscosity Index


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lee, Gordon H. (Autor:in) / Watanabe, Honami (Autor:in) / Miyata, Itsuki (Autor:in) / Yamamori, Kazuo (Autor:in) / Onodera, Ko (Autor:in) / Sato, Takehisa (Autor:in) / Kaneko, Toyoharu (Autor:in)

    Kongress:

    2019 JSAE/SAE Powertrains, Fuels and Lubricants ; 2019



    Erscheinungsdatum :

    2019-12-19




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Fuel Economy Improvement by Engine Oil with Ultra-High Viscosity Index

    Onodera, Ko / Watanabe, Honami / Sato, Takehisa et al. | British Library Conference Proceedings | 2019


    Megatrend fuel economy: how to optimize viscosity with viscosity index improvers

    Seemann,M. / Lauterwasser,F. / Smolenski,D.J. et al. | Kraftfahrwesen | 2015


    The Effect on Friction of Engine Oil Seal Using Low Viscosity Engine Oil for Fuel Economy Improvement

    Kim, Han Goo / Oh, Myoung-Hun / Jeon, Sae-il et al. | SAE Technical Papers | 2007



    The Fuel Economy Improvement Effect of MoDTC with Low Viscosity Engine Oil under Hybrid Electric Vehicle

    Takano, Koichi / Iino, Shinji / Yamamoto, Kenji et al. | British Library Conference Proceedings | 2023