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Closed Loop Start of Combustion Control Utilizing Ionization Sensing in a Diesel Engine
Technical Paper
1999-01-0549
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the technique of in-cylinder ionization sensing in a common rail diesel engine. The technology detects in real time, the start of combustion for both pilot and main combustion enabling the fuel control strategy to change from open to closed loop, thus, maintaining the desired start of combustion for all speeds and loads. Additionally, the ionization sensing enables the ECM to truly correct for changes in ignition delays caused by as an example a change in fuel cetane number or in air, fuel and engine temperature. The conclusions are that ionization sensing improves the ability to control a diesel engine and is a feasible technology for production vehicles.
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Citation
Glavmo, M., Spadafora, P., and Bosch, R., "Closed Loop Start of Combustion Control Utilizing Ionization Sensing in a Diesel Engine," SAE Technical Paper 1999-01-0549, 1999, https://doi.org/10.4271/1999-01-0549.Also In
Electronic Engine Controls 1999: Neural Networks, Diagnostic and Electronic Hardware, and Controls
Number: SP-1419; Published: 1999-03-01
Number: SP-1419; Published: 1999-03-01
References
- Lee, Anson Pyko Jan S. “Engine Misfire Detection by Ionization Current Monitoring” SAE Paper 950003
- Auzins, J. Johansson H. Nytomt J. “Ion-Gap Sense in Misfire Detection, Knock and Engine Control” SAE Paper 950004
- Eriksson, L. Nielsen, L. Nytomt, J. “Ignition Control by Ionization Current Intepretation” SAE Paper 960045
- Saitzkoff, A. Reinmann, R. Berglind, T. Glavmo, M. “An Ionization Equilibrium Analysis of the Spark Plug as an Ionization Sensor” SAE Paper 960337
- Saitzkoff, A. Reinmann, R. Mauss, F. Glavmo, M. “In-Cylinder Pressure Measurements Using the Spark Plug as Ionization Sensor” SAE Paper 970857
- Reinmann, R. Saitzkoff, A. Mauss, F. Glavmo, M. “Local Air-Fuel Ratio Measurements Using the Spark Plug as Ionization Sensor” SAE Paper 970856
- Balles, E. et al. “In-Cylinder Air/Fuel Ratio Approximation Using Spark Gap Ionization Sensing” SAE Paper 980166
- Reinmann, R. Saitzkoff, A. Lassesson, B. Strandh, P. “Fuel and Additive Influence on the Ion Current” SAE Paper 980161