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Experimental Investigation on the Use of Ion Current on SI Engines for Knock Detection
Technical Paper
2009-01-2745
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A system for both ignition and ion current measurement was designed and set up at Istituto Motori. Particular attention was paid to the problem of dissipating the residual energy stored in the ignition coil, reducing the electromagnetic interferences and especially improving the response of the measurement system.
In order to assess the capability of the ion current signal to give reliable and accurate information for knock detection, a number of tests were carried out at full load on a commercial PFI four cylinder engine, at various air/fuel ratios and spark timings.
Some knock indices based on the ionization signal, both band pass filtered and non-filtered, were introduced, in particular: the Amplitude of the Second Ionization Peak (ASIP), the Mean not filtered Ionization Current signal (MIC), the Maximum Amplitude of Ionization Current signal Oscillation (MAICO), the Integral of Modulus of filtered Ionization Current signal Oscillation (IMICO).
The thresholds of the MAPO (Maximum Amplitude of Pressure Oscillation) knock index, based on the band pass filtered pressure signal, were used to classify no-knocking and light-knocking cycles.
A criterion based on the Percentage of Knocking Cycles was proposed to evaluate the MAPO-equivalent thresholds of the considered indices to classify the knock type.
In particular, thresholds for the MAICO and IMICO indices were found, allowing a fairly good classification of no-knocking and light-knocking cycles based on ion current measurement.
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Authors
- V. Giglio - Istituto Motori – Consiglio Nazionale delle Ricerche
- G. Police - Istituto Motori – Consiglio Nazionale delle Ricerche
- N. Rispoli - Istituto Motori – Consiglio Nazionale delle Ricerche
- A. di Gaeta - Istituto Motori – Consiglio Nazionale delle Ricerche
- M. Cecere - Istituto Motori – Consiglio Nazionale delle Ricerche
- L. Della Ragione - Istituto Motori – Consiglio Nazionale delle Ricerche
Topic
Citation
Giglio, V., Police, G., Rispoli, N., di Gaeta, A. et al., "Experimental Investigation on the Use of Ion Current on SI Engines for Knock Detection," SAE Technical Paper 2009-01-2745, 2009, https://doi.org/10.4271/2009-01-2745.Also In
References
- Nates R.J. Yates, A. D. B. Knock Damage Mechanisms in Spark-Ignition Engines SAE Paper 942064
- Fitton, John Nates, Roy Knock Erosion in Spark-Ignition engines SAE Paper 962102
- Draper, C.S. The physical effects of detonation in a closed cylindrical chamber NACA
- Förster, Jürgen Günther, Achim Ketterer Markus Wald, Klaus-Jürgen Ion Current Sensing for Spark Ignition Engines SAE paper 1999-01-0204
- Daniels, Chao F. Zhu Guoming G. Winkelman, James Inaudible Knock and Partial-Burn Detection Using In-Cylinder Ionization Signal SAE paper 2003-01-3149
- Nielsen Lars Eriksson, Lars An Ion-Sense Engine Fine-Tuner IEEE Control Systems October 1998 43 52
- Worret R Bernhardt S Schwarz F Spicher U Application of different cylinder pressure based knock detection methods in spark ignition engines SAE Technical Paper No. 2002-01-1668
- Millo F Ferraro CV Knock in SI engines: a comparison betweendifferent techniques for detection and control SAE Technical Paper No. 982477 1998
- Kitajima, Takuro Kumada, Mitsuhiro Shimodaira, Hideo Yoshida Koji Shoji, Hideo A Study on lon Current and OH Radical Luminescence Behavior in a Two-Stroke Engine SAE paper 2000-01-1424
- Ohashi, Yutaka Koiwa, Mitsuru Okamura Koichi Ueda, Atsushi The Application of Ionic Current Detection System for the Combustion Condition Control Sae Paper 1999-01-0550
- Shimasaki, Yuichi Maki, Hidetaka Sakaguchi, Junko Nishizawa, Kazutoshi Kato Akira Suzuki Hiroaki Kondo Noriaki Yamada, Tatsunori Study on Combustion Monitoring System for Formula One Engines Using Ionic Current Measurement Sae Paper 2004-01-1921
- Naoumov, V. Demin, A. Sokolov. A. Numerical Study and Analysis of Pollutant Production and Emission Control Using Ion Current Prediction in the SI Engine SAE Paper 2003-01-0724
- Rahmounia, C. Brecq, G. Tazerout, M. Le Corre, O. Knock rating of gaseous fuels in a single cylinder spark ignition engine Fuel 83 2004 Elsevier 327 336
- Brunt, Michael F.J. Pond Christopher R. Biundo, John Gasoline Engine Knock Analysis using Cylinder Pressure Data SAE paper 980896
- Suzuki, Tsuyoshi Ohara Hironori Kakishima, Akihiro Yoshida Koji Shoji, Hideo A Study of Knocking Using Ion Current and Light Emission SAE Paper 2003-32-0038 , JSAE 20034338
- Jenkins, Gwilym M. Watts, Donald G. Spectral analysis and its applications Holden-Day Ed. 1968
- Schneider, Dirk Lai, Ming-Chia An Investigation of the Impact of Cycle-to-Cycle Variations on the Ionic Current Signal in SI Engines SAE Paper 2000-01-1943