It has been shown that appropriate regulation of parameters of the gas supply system control algorithm allows to reduce the emission of selected components of the exhaust gas (carbon monoxide [CO], hydrocarbon [HC], and oxides of nitrogen [NOx]). The test engine met the Euro 6 standard on petrol and was equipped with an additional alternative multipoint fuelling system for multipoint injection (MPI) of the gaseous phase liquefied petroleum gas (LPG). The tests are comparative in nature. The first test to compare LPG petrol fuelling was carried out in the New European Driving Cycle (NEDC) where small differences in emissions were shown. The second part of the test compared emissions in the Worldwide harmonized Light vehicles Test Cycle (WLTC), wherein the initial phase there was a significant difference in emissions to the detriment of the gas supply. An innovative approach was therefore proposed to correct settings in the gas system control algorithm. In the first option, the settings for the multiplier of the opening time of LPG and petrol injectors were adjusted, resulting in a decrease in HC and NOx emissions with an increase in CO. In the second variant, the connection between the reducer and the engine intake manifold was removed, which increased the HC and NOx emissions, with a decrease in CO compared to the previous variant. In the third variant, the connection between the reducer and the engine intake manifold was restored and several coolant temperature threshold adjustments were made when switching from petrol to LPG. As a result of the corrections made in the gas system control algorithm during WLTC implementation, HC emissions were lower by 10.2%, CO by 21.2%, and NOx by 68.2% compared to the initial test.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Exhaust Emissions of an Engine Fuelled by Petrol and Liquefied Petroleum Gas with Control Algorithm Adjustment


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2020-10-12


    Format / Umfang :

    21 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Aldehyde Emissions from an Ethanol-Petrol Fuelled Spark-Ignition Engine

    Tomlin,J.A. / Kent,J.H. / Univ.of Sydney,Dep.of Mech.Engng.,AU | Kraftfahrwesen | 1982



    The Comparative Study of Engine Vehicles Functioning With Petrol and Liquefied Petroleum Gas

    Stoica, Ramona-Monica / Rădulescu, Marian-Eduard / Dinu, Irinel et al. | Springer Verlag | 2015


    Analysis of the Exhaust Emissions and Performance of the Modern Vehicle Fuelled with Petrol and CNG Alternatively

    Szczotka, A. / Bielaczyc, P. / International Federation of Automobile Engineers' and Technicians' Associations | British Library Conference Proceedings | 2010


    Analysis of the exhaust emissions and performance of a modern vehicle fuelled with petrol and CNG in turn

    Bielaczyc,B. / Szczotka,A. / Wojnarowicz,M. et al. | Kraftfahrwesen | 2010