Relationship Between Monochromatic Gas Radiation Characteristics and SI Engine Combustion Parameters 930216
Relationships between radiant emissions, as measured by an in-cylinder optical sensor, and spark-ignition engine combustion parameters are presented for possible use in engine combustion diagnostics and future engine control strategies. A monochromatic gas radiation model, developed in a previous study, was used to derive a series of relationships between the measured radiant emission characteristics and several spark-ignition engine combustion parameters, such as the amplitude and phasing of the peak heat-release rate, combustion duration, IMEP, NOx emission, pressure, trapped mass and exhaust-gas temperature. In addition, many engine parameters of interest can be estimated indirectly from the radiation signal using empirical models. Correlations of air-fuel ratio and exhaust emissions are presented which contain a combination of radiant emission parameters and known base-engine operating parameters, such as intake manifold pressure, etc.
Citation: Yang, J., Plee, S., and Remboski, D., "Relationship Between Monochromatic Gas Radiation Characteristics and SI Engine Combustion Parameters," SAE Technical Paper 930216, 1993, https://doi.org/10.4271/930216. Download Citation
Jialin Yang, Steven L. Plee, Donald J. Remboski
International Congress & Exposition
SAE 1993 Transactions: Journal of Fuels & Lubricants-V102-4