This paper presents an example of applying a genetic algorithm to determine discrete parameter values for a compression-ignition engine working cycle model. An empirical-theoretical zero-dimensional model was adopted as the working cycle model. The basis for determining the model parameter values is experimentally recorded pressure traces. The task was formulated as a minimization problem of the difference between calculated and experimentally recorded pressure values. The paper discusses the individual stages of the procedure and presents the results of its application for selected engine operating points.In practical applications, mathematical models of real processes are widely used, the utility of which is conditioned by the knowledge of the values of a number of parameters, hereinafter referred to as model parameters. The use of such models stems from the need to ensure the required time efficiency of the numerical calculations performed. (…)
The article contains 17,310 characters.
Source: Logistyka Magazine