Internal combustion engine diagnostics using statistically processed Wiebe function

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Internal combustion engine diagnostics using statistically processed Wiebe function

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20300 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

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

Name of the periodical

Eksploatacja i Niezawodnosc - Maintenance and Reliability

ISSN

1507-2711

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

7

Pages from-to

505-511

UT code for WoS article

000680178800008

EID of the result in the Scopus database

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