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Limitations of Ionization Current Sensors and Comparison with Cylinder Pressure Sensors
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 16, 2000 by SAE International in United States
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One way of improving electronic engine control is to get an insight into the combustion process, using a direct measurement method: this means the sensor must be put straight into the combustion chamber. The reference for analyzing combustion development is the cylinder pressure sensor. Due to the price of this sensor and the added complexity for cylinder head design and manufacturing, cylinder pressure sensors are not conceivable today for mass production.
An alternative to the cylinder pressure sensor is the ionization sensor. It seems to be very promising for electronic engine control. Several publications have already demonstrated the benefits of ionization currents sensing for misfire detection, knock detection, closed loop ignition control, air-fuel ratio estimation. On the contrary, other publications have shown severe limitations of the ionization sensor. For example, fuel composition or additives can influence the ionization current.
Not all the potentialities of ionization currents are clear today. Several tests on ionization current have been performed in order to get a better understanding of the ionic current phenomenon and evaluate control functions such as misfire or knock detection. For each test, the benefits or the disadvantages of ionization currents are shown in comparison with the cylinder pressure.
- L. Peron - PSA PEUGEOT CITROEN, Direction de la Recherche et de l'Innovation Automobile and L.M.E., Université d'Orléans, rue Léonard de Vinci
- J. F. Burq - PSA PEUGEOT CITROEN, Direction de la Recherche et de l'Innovation Automobile
- A. Charlet - L.M.E., Université d'Orléans, rue Léonard de Vinci
- P. Higelin - L.M.E., Université d'Orléans, rue Léonard de Vinci
- B. Moreau - L.M.E., Université d'Orléans, rue Léonard de Vinci
CitationPeron, L., Charlet, A., Higelin, P., Moreau, B. et al., "Limitations of Ionization Current Sensors and Comparison with Cylinder Pressure Sensors," SAE Technical Paper 2000-01-2830, 2000, https://doi.org/10.4271/2000-01-2830.
- Wibberley P. Clark C. A. “An investigation of cylinder pressure as feedback for control of internal combustion engines” 1999 SAE 890396
- Powell J. D. “Engine control using cylinder pressure: past, present, and future” Journal of dynamical systems June 1993 115
- Staitzkoff A. Reinmann R. berlind T. Glavmo M. “An ionization equilibrium analysis of the spark plug as an ionization sensor” 1996 SAE 960337
- Staitzkoff A. Reinmann R. berlind T. Glavmo M. “In-cylinder pressure measurements using the spark plug as an ionization sensor” 1997 SAE 970857
- Auzins J. Johansson H. Nytomt J. “Ion-Gap Sense in misfire detection, knock and engine control” 1995 SAE 950004
- Reinmann R. Saitzkoff A. Lasseson B. Strandth P. “Fuel and additive influence on the ionization current” 1998 SAE 98161
- Förster J. Günther A. Ketterer M. Wald K.J. “Ion current sensing for spark ignition engines” 1999 SAE 1999-01-2004
- Eriksson L. Nielsen L. Glavenius M. “Closed loop ignition control by ionization current interpretation” 1997 SAE 970854
- Eriksson L. Nielsen L. Glavenius M. “Ignition control by ionization current interpretation” 1996 SAE 960045
- Heywood J.B. “Internal combustion engine fundamentals” McGraw Hill International Editions
- Collings N. Dinsdale S. Eade D. “Knock detection by means of the spark plug” 1986 SAE 860635
- Lee A. Pyko J. “Engine misfire detection by ionization current monitoring” 1995 SAE 950003
- Chaumerliac V. “Commande multivariable d'un moteur a allumage commande” 1995
- Reinmann R. Saitzkoff A. Mauss F. Glavmo M. “Local air-fuel measurements using the spark plug as an ionization sensor” 1997 SAE 970856
- Gassenfeit E. H. Powell J. D. “Algorithms for air-fuel ratio estimation using internal combustion engine cylinder pressure” 1989 SAE 890300
- Ohashi Y. Koiwa M. Okammura K. Ueda A. “The application of ionic current detection system for the combustion control” 1999 SAE 1999-01-0550
- Duhr J. “Engine control based on ion current detection reliable and robust misfire detection” SAE Workshop 28 29 april 1998 Torino
- Lawton J. Weinberg F.J. “Electrical Aspects of Combustion” Clarendon Press 1969
- Miyata S. Ito Y. Shimasaki Y. “Flame ion density measurement using soark plug voltage analysis” 1993 SAE 930462