Compression Estimation from Simulated and Measured Cylinder Pressure 2002-01-0843
Three methods for estimating the compression from measured cylinder pressure traces are described and evaluated for both motored and fired cycles against simulated and measured cylinder pressure. The first two rely upon a model of polytropic compression, and it is shown that they give a good estimate of the compression ratio for simulated cycles for low compression ratios. For high compression ratios, these simple models lack the information about heat transfer. The third method includes a standard heat transfer and crevice effect model, together with a heat release model and is able to estimate the compression ratio more accurately.
Citation: Klein, M., Eriksson, L., and Nilsson, Y., "Compression Estimation from Simulated and Measured Cylinder Pressure," SAE Technical Paper 2002-01-0843, 2002, https://doi.org/10.4271/2002-01-0843. Download Citation
Author(s):
Marcus Klein, Lars Eriksson, Ylva Nilsson
Affiliated:
Vehicular Systems, Link¨oping Univ.
Pages: 10
Event:
SAE 2002 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Engine Control Technologies, 2nd Edition-PT-110, Electronic Engine Controls 2002: Electronics and Information Gathering-SP-1690, SAE 2002 Transactions Journal of Engines-V111-3
Related Topics:
Heat transfer
Engine cylinders
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