LSPI is an important issue to enable and enhance the effect of downsizing in SI engines. Experimental work was carried out by using 4 cylinder turbocharged gasoline engine, attaching the extra supercharger to get a higher boost pressure. Many parameters of driving condition, engine specification and lubricants were studied and some of them were extracted as the major items which affect the possibility of LSPI. Coolant temperature and Calcium (Ca) additive to lubricant had strong effect on the frequency of LSPI. Combustion strategy of strong miller cycle and LPEGR were also studied and compared in very high BMEP condition. Finally IMEPg of 3MPa at 1500rpm was achieved by using a single cylinder test engine equipped with 2-stage mechanically supercharged intake system.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Investigation and Improvement of LSPI Phenomena and Study of Combustion Strategy in Highly Boosted SI Combustion in Low Speed Range


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hatamura, Koichi (Autor:in) / Morikawa, Koji (Autor:in) / Kuboyama, Tatsuya (Autor:in) / Yamada, Toshio (Autor:in) / Imai, Yasuo (Autor:in) / Moriyoshi, Yasuo (Autor:in)

    Kongress:

    SAE 2015 World Congress & Exhibition ; 2015



    Erscheinungsdatum :

    2015-04-14




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    Mechanism Analysis on LSPI Occurrence in Boosted S. I. Engines

    Teraji, Atsushi / Hashimoto, Hiroki / Kassai, Masaharu et al. | SAE Technical Papers | 2015


    Low Speed Pre-Ignition (LSPI) Durability – A Study of LSPI in Fresh and Aged Engine Oils

    Michlberger, Alexander / Dohner, Brent / Sutton, Mike | SAE Technical Papers | 2018


    LSPI Durability, a Study of LSPI over the Life of a Vehicle

    Michlberger, Alexander / Sutton, Michael | SAE Technical Papers | 2018