NDLI: Modeling and identification of the combustion pressure process in internal combustion engines

Content Provider	IEEE Xplore Digital Library
Author	Connolly, F.T. Yagle, A.E.
Copyright Year	1993
Description	Author affiliation: Dept. of Electr. Eng., Michigan Univ., Ann Arbor, MI, USA (Connolly, F.T.; Yagle, A.E.)
Abstract	We present new models relating combustion pressure to crankshaft velocity in an internal combustion engine. There are three aspects to this model. First, by changing the independent variable from time to crankshaft angle, a nonlinear differential equation model becomes a linear first-order differential equation. Second, a new stochastic signal model for combustion pressure uses the sum of a deterministic waveform and a raised cosine window amplitude modulated by a Bernoulli-Gaussian random sequence, parametrizing the pressure by the sample modulating sequence. This results in a state equation for the square of angular velocity sampled once every combustion, with the modulating sequence as input. Third, the inverse problem of reconstructing pressure from noisy angular velocity measurements can now be formulated as a state-space deconvolution problem, and solved using a Kalman-Alter-based deconvolution algorithm. Experimental results are shown supporting theoretical developments.<>
Starting Page	204
Ending Page	207
File Size	419289
Page Count	4
File Format	PDF
ISBN	0780317602
DOI	10.1109/MWSCAS.1993.343094
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-08-16
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Differential equations Amplitude modulation Angular velocity Deconvolution Internal combustion engines Stochastic processes Random sequences Inverse problems Velocity measurement Pressure measurement
Content Type	Text
Resource Type	Article

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