Fluid-dynamic and thermal effects on transient performance and emissions of a spark ignition engine with electronic control
Fluid-dynamic and thermal effects on transient performance and emissions of a spark ignition engine with electronic control
- Neue Suche nach: Rizzo, G.
- Neue Suche nach: Pianese, C.
- Neue Suche nach: Rizzo, G.
- Neue Suche nach: Pianese, C.
A dynamic model for performance evaluation of a spark ignition engine with electronic control in transients is presented. The model takes into account the dynamics of air and fuel flows in the intake manifold and the thermal inertia of the cylinder wall. Different strategies for fuel flow compensation are analyzed, and the results obtained on a driving cycle are presented. Fuel consumption and emissions are computed from steady-state experimental data, using correlations for the effects of cylinder wall temperature. The results evidence that both fluid-dynamic and thermal phenomena must be considered in transient conditions, in order to design control strategies and to properly evaluate emissions under urban driving conditions. The followed approach requires limited computational time and makes the model suitable for control strategy optimization.
Dokumentinformationen
Fluid-dynamic and thermal effects on transient performance and emissions of a spark ignition engine with electronic control
Strömungsmechanische und thermische Einflüsse auf die Übergangsleistung und Emissionen von Ottomotoren mit elektronischer Steuerung
1992
10 Seiten, 17 Bilder, 18 Quellen
Aufsatz (Konferenz)
Englisch
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