Nowadays the synergic use of powertrain electrification and innovative Internal Combustion Engine (ICE) technologies may represent a valuable solution to face the concurrent tightening of pollutant emission limits and CO2 targets and to shift toward a more sustainable mobility. In this context, hybrid powertrains are seen as the main near-term solution to these challenges of reducing CO2 and pollutant emissions as well as meeting the demands of the global market in the near future. In such a framework the PHOENICE project aims at assessing the capabilities of a plug-in hybrid powertrain to minimize the fuel consumption of C class SUV in real world driving conditions and at the same times being compliant with the upcoming EU7 regulations.

    For the achievement of these ambitious targets, the development of an environmentally friendly internal combustion engine is mandatory. Thus, this paper will focus on the design of the PHOENICE engine which combines innovative in-cylinder charge motion (Swumble™), lean mixture with cooled EGR, and electrified turbocharger to enable a highly diluted, efficient combustion process. The abovementioned engine concept was also coupled with a dedicated aftertreatment configuration composed by an electrically heated TWC, a GPF and an SCR optimised for gasoline exhaust conditions whose high conversion efficiency allows the minimization of the tail pipe emissions.

    The optimization of such a complex configuration relied on an extensive use of numerical models which allowed reducing the calibration effort and identifying all the possible synergies among the selected technologies. The results of this extensive simulation campaign showed a very good agreement with the preliminary experimental measurements carried out on the first prototype of the engine which achieved an increase in Brake Thermal Efficiency (BTE) of more than 4 points compared to the reference layout.


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    Title :

    A Path toward a New Generation of Green Hybrid Powertrain: The PHOENICE Project


    Additional title:

    Lect.Notes Mobility



    Conference:

    Transport Research Arena Conference ; 2024 ; Dublin, Ireland April 15, 2024 - April 18, 2024



    Publication date :

    2025-05-03


    Size :

    7 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English






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