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Closed Loop Ignition and Fueling Control Using Optical Combustion Sensors
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Abstract
In order to accurately control the ignition and fuelling of a gasoline engine, in the presence of environmental and system variability, it is necessary to measure the effect this variability has on the combustion process and then to initiate control action dependent upon this effect. Various systems have been proposed to gain a more comprehensive combustion measure than today's Lambda sensors can provide, including in-cylinder pressure, ionization probes, wide range exhaust gas oxygen sensors, etc. None of these systems has proven truly practical for volume production either because of the very high sensor cost, the computational load required by the signal processing, or performance limitations.
This paper describes the application of in-cylinder optical probes to combustion feedback and control. The probes are used to measure the ignition delay and burn duration and these parameters are then maintained according to a mapped schedule by the concurrent control of ignition and fuelling. The prototype system is shown to exhibit good control over the production of NOx, being robust in the presence of system and environmental variability.
In addition to the combustion timing control, the optical probes may be used to measure the level of cyclic variability and knock. The control of these variables can then be integrated into the principal combustion timing control scheme to provide a wide range of control through a single sensor.
Two types of prototype combustion probe have been developed, one based upon a standard pressure sensor format, the other integrated into a spark plug.
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Nutton, D. and Pinnock, R., "Closed Loop Ignition and Fueling Control Using Optical Combustion Sensors," SAE Technical Paper 900486, 1990, https://doi.org/10.4271/900486.Also In
References
- Clark G L Spectroscopic studies of fuels and analysis of detonation theories SAE Journal XXIII August 1928
- Clark G L Thee Walter C Ultra-violet spectroscopy of flames of motor fuels Industrial and Engineering Chemistry 18 5 May 1926
- Clark G L Henne A L Ultra-violet spectroscopy of engine fuel flames SAE Journal XX 2 February 1927
- Clark G L Smith H A Ultra-violet spectroscopy of the flames of motor fuels “The practical utilization of a small quartz-prism spectrograph for the quantitative determination of Lead tetraethyl in gasolene” Journal of Physical Chemistry 33 659 1929
- Withrow L Boyd T A Photographic flame studies in the gasolene engine Industrial and Engineering Chemistry 23 5 May 1931
- Rassweiler G M Withrow L Emission spectra of engine flames Industrial and Engineering Chemistry 24 5 May 1932
- Withrow L Rassweiler G M Formaldehyde formation by preflame reactions in an engine Industrial and Engineering Chemistry 26 12 December 1934
- Rassweiler G M Withrow L Motion pictures of engine flames correlated with pressure cards SAE Transactions 42 5 May 1938
- Agnew W G Agnew J T Wark K Jr. Infrared emission from cool flames, stabilised cool flames; engine cool flames; gas temperature deduced from infrared emissions. The 5th International Symposium on Combustion The Combustion Institute 1955
- Pinnock R A Extance P Cockshot C P Combustion sensing using optical fibres IEE Sixth International Conference on Automotive Electronics 1987
- Extance P Hazleden R J Birch J W Cockshot C P Fibre optics for monitoring internal combustion engines 734 Fifth International Conference on Fibre Optics and Opto-electronics
- Moser W XXth FISITA Congress 1984 Paper 845002
- Nagase K Funatsu K Muramatsu Y Kawakami M An investigation of combustion in internal combustion engines by means of optical fibres 1985 International Off Highway & Powerplant Congress & Exposition MECCA Milwaukee, Wisconsin Paper 851560 September 1985
- Spicher U Kollmeler H-P. Detection of flame propagation during knocking combustion by optical fiber diagnostics International Fuels and Lubricants Meeting and Exposition Philadelphia, Pennsylvania October 1986
- Semiconductor Colour Sensor Model PD150/151 SHARP Corporation 2613-1 Ichinomoto, Tenri City, Nara (Japan)
- Kako N Tanaka N Suzuki C Combustion detector with a semiconductor colour sensor Sensors and Actuators 4 1983 655 660
- Woschni G Universally applicable equation for the instantaneous heat transfer coefficient in the internal combustion engine SAE paper 670931
- Hands T Collings N Ma T Flame speed standardisation between cylinders by feedback control of individual fuel injector pulse width. IMECHE C58/88
- May M G Flame arrival sensing fast response double acting engine management SAE 84041
- Remboski D J Plee S L Martin J K An optical sensor for spark ignition engine combustion analysis and control. SAE 890159
- Hamburg D R Hogh G Lawson G P Adaptive lean limit air fuel ratio control using combustion pressure sensor feedback. US 4,736,724 patent
- Hata Y Ikeura K Morita T Abo T Engine control system using a cylinder pressure sensor
- Walzer P Geiger I Waschatz U Smooth running control - a control method for alternative emission approaches EAEC Conference Strasbourg June 1987
- Mihelc W P Citron S J An on-line roughness measurement technique SAE paper 860413
- Latsch R Mausner E Experiences with a new method for measuring the engine roughness ISATA 1970 Graz, Austria
- Ribbens W B Experimental road test of a non-contacting method of measuring IC engine torque non-uniformity SAE paper 850454
- Achleitner E Lenz H.P. The analysis of light emission in the combustion chamber for closing loop control of lean burn VDI Berichte November 1985
- Checkel M D Dale J D Computerised knock detection from engine pressure records SAE paper 860028
- Checkel M D Dale J D Testing a third deriative knock indicator on a production engine SAE paper 861216
- Checkel M D Dale J D Pressure trace knock measurement in a current SI production engine SAE 890243
- Hottel H C Broughton F P Determination of true flame temperature and total radiation from luminous gas flames Industrial and Engineering Chemistry Analytical Edition 4 1932
- Uyehara O A Myers P S Watson K M Wilson L A Flame temperature measurements in internal combustion engines Transactions of the ASME January 1946
- Kuroiwa H Oyama Y Toshiharu N Control apparatus for internal combustion engines. European patent application 0 288 056