SIMULATION OF CYCLE-BY-CYCLE VARIABILITY OF SI ENGINE

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

SIMULATION OF CYCLE-BY-CYCLE VARIABILITY OF SI ENGINE

Popis výsledku v původním jazyce

This paper deals with utilization of an adaptive combustion model in order to simulate cycle-by-cycle variability of SI engine. The empirical adaptive combustion model consists of two parts: the first part for ignition delay prediction and the second part for in-cylinder combustion process description. There is proved mutual independence of these two phases that are generally given by normal distribution in terms of cycle-by-cycle variability. The practical utilization of the cycle-by-cycle variability simulation is demonstrated by computational analysis of different variability levels at chosen engine part load. There is shown particular benefit in fuel consumption through the reducing cycle-by-cycle variability of the combustion process.

Název v anglickém jazyce

SIMULATION OF CYCLE-BY-CYCLE VARIABILITY OF SI ENGINE

Popis výsledku anglicky

This paper deals with utilization of an adaptive combustion model in order to simulate cycle-by-cycle variability of SI engine. The empirical adaptive combustion model consists of two parts: the first part for ignition delay prediction and the second part for in-cylinder combustion process description. There is proved mutual independence of these two phases that are generally given by normal distribution in terms of cycle-by-cycle variability. The practical utilization of the cycle-by-cycle variability simulation is demonstrated by computational analysis of different variability levels at chosen engine part load. There is shown particular benefit in fuel consumption through the reducing cycle-by-cycle variability of the combustion process.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů