The regulations that governments are going to introduce in the upcoming years on both pollutant and Green House Gas (GHG) emissions will foster the electrification of the transport sector. However, the development of innovative, environmental-friendly Internal Combustion Engines (ICEs) can still play a fundamental role to be on track toward the achievement of the carbon neutrality within 2050. In such a framework, the PHOENICE project aims at assessing the capabilities of an innovative spark ignition engine concept to reduce, in real world driving conditions, both the pollutant emissions and the fuel consumption of a C-SUV class plug-in hybrid electric vehicle. The synergic use of innovative in-cylinder charge motion, lean mixture with cooled Exhaust Gas Recirculation (EGR) and electrified turbocharger will enable a highly diluted combustion process capable to achieve a peak indicated efficiency of 47%. To ensure EU7-compliant emission levels, the engine will also feature an innovative aftertreatment configuration composed by an electrically heated Three-Way Catalyst (TWC), a Gasoline Particulate Filter (GPF) and a Selective Catalytic Reduction (SCR) device.
In this paper, the performance of the PHOENICE engine prototype will be assessed through an extensive experimental campaign performed on a fully dynamic test rig. First, the optimization of the main engine calibration parameters will be performed on a set of relevant operating conditions previously identified through 0D/1D numerical simulations. Particular attention will be devoted to the calibration of the EGR levels and of the A/F ratio to maximize the engine Brake Thermal Efficiency (BTE). Afterwards, the digital twin of the engine, developed in a previous stage of the project, will be exploited to highlight the contribution of the new technologies integrated in the PHOENICE engine.
PHev towards Zero EmissioNs & Ultimate ICE Efficiency: the PHOENICE Project
Proceedings
Internationaler Motorenkongress ; 2024 ; baden-baden, Deutschland April 19, 2024 - April 29, 2024
2025-07-02
14 pages
Article/Chapter (Book)
Electronic Resource
German
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