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Analog Computation of Pressure Evolution in Internal Combustion Engines
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English
Abstract
A philosophy is proposed that there might exist a definite correlation between the engine parameter variations and the Fourier coefficients of different harmonics of the corresponding pressure diagrams and their derivatives. It is thus possible to establish the law of variation of Fourier coefficients with respect to a particular parameter. From these correlations, it is possible to predict a cycle, taking into consideration all the important parameters-injection timing, load, speed, flow processes, etc.
Harmonic analyses developed in our laboratory are based on the principles of analog computation, to get results instantaneously, while the engine is running on the test bed.
Citation
Aprameyan, K. and Murat, M., "Analog Computation of Pressure Evolution in Internal Combustion Engines," SAE Technical Paper 720029, 1972, https://doi.org/10.4271/720029.Also In
References
- Lyn W. T. “Calculations of the Effect of Rate of Heat Release on the Shape of Cylinder, Pressure Diagrams and Cycle Efficiency.” IME, Proceedings of the Automotive Division 1 1960-1961 34 46
- Borman G. “Mathematical Simulation of Internal Combustion Engine Process and Performance Including Comparisons with Experiment.” Mechanical Engineering Department, University of Wisconsin 1964
- Woschni G. “Computers Programs to Determine the Relationship Between Pressure Flow, Heat Released, and Thermal Load in Diesel Engine.” SAE Transactions 74 1966 paper 650450
- Korn and Korn “Electronic Analog and Hybrid Computers.” New York McGraw Hill 1964