Estimation of a noise level using coarse-grained entropy of experimental time series of internal pressure in a combustion engine

Grzegorz Litak, Rodolfo Taccani, Robert Radu, Krzysztof Urbanowicz, Janusz A. Hołyst, Mirosław Wendeker and Alessandro Giadrossi

Chaos, Solitons & Fractals, 2005, vol. 23, issue 5, 1695-1701

Abstract: We report our results on non-periodic experimental time series of pressure in a single cylinder spark ignition engine. The experiments were performed for different levels of loading. We estimate the noise level in internal pressure calculating the coarse-grained entropy from variations of maximal pressures in successive cycles. The results show that the dynamics of the combustion is a non-linear multidimensional process mediated by noise. Our results show that so defined level of noise in internal pressure is not monotonous function of loading.

Date: 2005
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:23:y:2005:i:5:p:1695-1701

DOI: 10.1016/j.chaos.2004.06.057

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