engleski

Continously Variable Intake Manifold Pipe Length Control Using Genetic Algorithm

The paper presents 1D mathematical model and simulation program, used to determine the optimal control strategy for continuously changing intake pipes length of the internal combustion engine. Optimization was performed using genetic algorithm. The program comprises the unsteady 1D model of the entire intake and exhaust systems, with the 0D sub model for engine cylinders. Governing equations for 1D flow were solved by method of characteristics. The paper presents test case results for a contemporary 1.8 litre, 100 kW, automotive spark ignition engine. The engine is naturally aspirated and comprises 4 cylinders in line. The optimization criteria was the highest engine torque and power for the given engine speed.

spark ignition engine; variable length intake system; numerical model; method of characteristics; genetic algorithm

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