Statistical Analysis of the Pondered Deviation from Reference Index
for Knock Detection in Internal Combustion Engines 03-15-05-0037
This also appears in
SAE International Journal of Engines-V131-3EJ
This article develops an analysis about the statistical nature of the Pondered
Deviation from Reference (PDrs) index for knock detection in internal combustion engines. The
statistical analysis proved that the PDrs index is a statistic whose probability distribution function follows a
log-normal distribution with a mean and variance of 1.015 and 0.0103,
respectively. The distribution and the probability knock threshold of the
PDrs index is independent of engine operating conditions, types of engines,
and fuels used. Through Monte Carlo’s simulations were stated that the
probability knock threshold is equal to 1.64. Thereby, engines run with abnormal
combustion if the PDrs is greater than 1.64, whereas if PDrs ≤ 1.64, engines run under normal combustion.
Citation: Marenco, M. and Amador, G., "Statistical Analysis of the Pondered Deviation from Reference Index for Knock Detection in Internal Combustion Engines," SAE Int. J. Engines 15(5):689-702, 2022, https://doi.org/10.4271/03-15-05-0037. Download Citation
Author(s):
Maicol Marenco, German Amador
Affiliated:
Universidad Técnica Federico Santa María, Chile
Pages: 14
ISSN:
1946-3936
e-ISSN:
1946-3944
Related Topics:
Combustion and combustion processes
Statistical analysis
Engines
Knock
Logistics
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