2011
DOI: 10.2516/ogst/2011144
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TDC Offset Estimation from Motored Cylinder Pressure Data based on Heat Release Shaping

Abstract: Résumé -Estimation du décalage de PMH à partir de données de pression de cylindre moteur basées sur la conformation de libération de chaleur -La détermination du décalage de Point Mort Haut (PMH) correct d'un moteur à combustion interne est plus difficile qu'il n'y paraît. Cette étude introduit une nouvelle méthode destinée à déterminer le décalage de PMH sur la base de la simple supposition que la puissance de perte de chaleur à travers les parois de la chambre de combustion soit constante pour des cycles mot… Show more

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Cited by 32 publications
(8 citation statements)
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“…[28,29] and is represented as 0 on the CAD scale. The inecylinder pressure was pegged with p in as a reference at the BDC position before the compression phase.…”
Section: Experimental Procedures and Post-processingmentioning
confidence: 99%
“…[28,29] and is represented as 0 on the CAD scale. The inecylinder pressure was pegged with p in as a reference at the BDC position before the compression phase.…”
Section: Experimental Procedures and Post-processingmentioning
confidence: 99%
“…Many methods exist for TDC offset estimation, all giving comparable results and variabilities, see for example Tazerout et al 16 or Tunestål. 17,18 The uncertainty linked to it is directly proportional to the rate of change of the pressure with the τ value, multiplied by the uncertainty on the value itself, which is the LC error of the rotary encoder…”
Section: Results: Uncertainties On the Physical Quantities Requiring mentioning
confidence: 99%
“…In the work of Tunestal [23], the thermodynamic model of an ICE and the derivation of its pressure equation in relation to the crank angle is presented. Here, the modeling is simplified, in order to provide the basics for the interpretation of the pressure curve.…”
mentioning
confidence: 99%
“…At each cycle, the piston travels twice from the limits TDC (Top Dead Center, or the highest position of the piston inside the cylinder) and BDC (Bottom Dead Center, or the lowest position of the piston inside the cylinder). The variation of volume V of the cylinder, in relation the crank angle α can be calculated as Equation ( 1) [23].…”
mentioning
confidence: 99%
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