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A Computerized On-Line Approach to Calculating Optimum Engine Calibrations
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1977 by SAE International in United States
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A current design objective of the automotive engineer is to calibrate the passenger car spark ignited engine for best fuel economy for a given level of exhaust emission performance. The need to achieve the best possible calibrations has motivated the application of mathematical optimization techniques to this problem. This paper describes a new on-line technique in which an engine dynamometer minicomputer, programmed with an optimization algorithm, automatically determines the optimum calibrations for spark advance, air-fuel ratio, and exhaust gas recirculation at fixed speed-load operating points. These points are selected by analysis of measured or simulated performance of the engine in a specified vehicle.
CitationCassidy, J., "A Computerized On-Line Approach to Calculating Optimum Engine Calibrations," SAE Technical Paper 770078, 1977, https://doi.org/10.4271/770078.
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