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Dynamic Optimization of Spark Advance and Air-Fuel Ratio for a Natural Gas Engine
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English
Abstract
An adaptive control system which determines the optimum system parameters based on the engine response to changes in those parameters, has been tested as an ignition timing control system on several gaseous fueled engines. The changes in the MBT timing for speed, load, air-fuel ratio, and fuel type were explored. The ability of the control system to correct the timing for these parameters was demonstrated. An air-fuel ratio control based on the same technique is also discussed.
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Citation
Kittelson, D., Pipho, M., and Franklin, M., "Dynamic Optimization of Spark Advance and Air-Fuel Ratio for a Natural Gas Engine," SAE Technical Paper 892142, 1989, https://doi.org/10.4271/892142.Also In
References
- Natural Gas Vehicles A Review of the State of the Art, The Natural Gas Vehicle Coalition Sierra Research, Inc. Sacramento, CA April 13 1989
- Schweitzer, P.H. Volz C. Collings T.W. “Adaptive Control System for Power Producing Machines,” U.S. Patent No. 4,026,251 May 31 1977
- Kittelson, D.B. “System for Optimizing the timing of Diesel or Spark Ignition Engines,” U.S. Patent No. 4,575,800 March 11 1986
- Pipho. M. J. Kittelson D. B. “Closed Loop Digital Electronic Control of Diesel Engine Timing” SAE Paper No. 830579
- Kittelson, D. B. Pipho M. J. “Optimizing Control of Diesel Injection Timing” ISATA 83 Proceedings 1 245 271 1983
- Born, G. J. Durbin E. J. “The Natural Gas Fueled Engine” Methane Fuel for the Future McGeer P. Durbin E. 101 112 Plenum Press New York and London 1982