Internal combustion engine diagnostics using statistically processed Wiebe function

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F21%3A10248137" target="_blank" >RIV/61989100:27230/21:10248137 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.researchgate.net/publication/352305339_Internal_combustion_engine_diagnostics_using_statistically_processed_Wiebe_function" target="_blank" >https://www.researchgate.net/publication/352305339_Internal_combustion_engine_diagnostics_using_statistically_processed_Wiebe_function</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17531/ein.2021.3.11" target="_blank" >10.17531/ein.2021.3.11</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Internal combustion engine diagnostics using statistically processed Wiebe function

Popis výsledku v původním jazyce

The aim of the article is to present the concept of an indirect diagnostic method using the assessment of the variability of the amount of released heat (mass fraction burn) and the heat release rate. The Wiebe function for the assessment of variability has been used. The Wiebe function parameters from the course of the high-pressure indication in the cylinder of internal combustion engine using linear regression have been calculated. From a sufficiently large number of measured samples, the upper and lower limits of the Wiebe function parameters have been statistically determined. Lower and upper limits characterize variability of the heat release process not only in terms of quantity but also in terms of heat release rate. The assessment of variability is thus more complicated than using one integral indicator, typically the mean value of amount of the released heat. The procedure enabling a more accurate estimation of heat generation beginning has been shown. For the combustion process variability assessment of the engine, statistical test of relative frequencies has been used.

Název v anglickém jazyce

Internal combustion engine diagnostics using statistically processed Wiebe function

Popis výsledku anglicky

The aim of the article is to present the concept of an indirect diagnostic method using the assessment of the variability of the amount of released heat (mass fraction burn) and the heat release rate. The Wiebe function for the assessment of variability has been used. The Wiebe function parameters from the course of the high-pressure indication in the cylinder of internal combustion engine using linear regression have been calculated. From a sufficiently large number of measured samples, the upper and lower limits of the Wiebe function parameters have been statistically determined. Lower and upper limits characterize variability of the heat release process not only in terms of quantity but also in terms of heat release rate. The assessment of variability is thus more complicated than using one integral indicator, typically the mean value of amount of the released heat. The procedure enabling a more accurate estimation of heat generation beginning has been shown. For the combustion process variability assessment of the engine, statistical test of relative frequencies has been used.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20300 - Mechanical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Eksploatacja i Niezawodnosc - Maintenance and Reliability

ISSN

1507-2711

e-ISSN

—

Svazek periodika

23

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

7

Strana od-do

505-511

Kód UT WoS článku

000680178800008

EID výsledku v databázi Scopus

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