A Simple Physical Model of ICE Mechanical Losses
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F11%3A00189532" target="_blank" >RIV/68407700:21220/11:00189532 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
A Simple Physical Model of ICE Mechanical Losses
Original language description
The aim of the current paper is describing the development and experimental calibration of the physical cranktrain model for FMEP prediction, based on simplified phenomenological model of mixed friction. The model uses simply defined shapes of Stribeck curves (friction coefficient) in dependence on Sommerfeld number, i.e., on effective sliding velocity, oil viscosity, dimension scaling factor and the normal force load. The piston rings are loaded by pre-tension and by pressure difference at external andinternal surfaces. The instantaneous pressures at ring-pack are simulated using GT Power modules. Forces and torques in the cranktrain are calculated iteratively taking into account the additional friction effects and the non-uniformity of crank speed,reflected by inertia forces. The model has been calibrated using data from engine tests at different loads, speeds and oil/cooling water temperature levels. The results show the predictive accuracy better than four percent considering mec
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
JT - Propulsion, engines and fuels
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
SAE Technical Collection - Modeling of SI and Diesel Engines, Coll-TP-00156
ISBN
978-0-7680-4753-0
Number of pages of the result
18
Pages from-to
13-30
Number of pages of the book
225
Publisher name
SAE International
Place of publication
Warrendale, PA 15096
UT code for WoS chapter
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