- Tytuł:
- Internal combustion engine diagnostics using statistically processed Wiebe function
- Autorzy:
-
Famfulik, Jan
Richtar, Michal
Smiraus, Jakub
Muckova, Petra
Sarkan, Branislav
Dresler, Pavel - Powiązania:
- https://bibliotekanauki.pl/articles/2038118.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
- Tematy:
-
automotive engineering
engine diagnostics
Wiebe function
parameters estimation
statistics
technical condition - Opis:
- 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.
- Źródło:
-
Eksploatacja i Niezawodność; 2021, 23, 3; 505-511
1507-2711 - Pojawia się w:
- Eksploatacja i Niezawodność
- Dostawca treści:
- Biblioteka Nauki
Artykuł