Browse Publications Technical Papers 2004-28-0075
2004-01-16

Enhanced ICSI Engine Performance With Particle Swarm Optimization 2004-28-0075

Increasing engine power and efficiency using a particle swarm optimization technique is investigated by using thermodynamics based quasi-steady engine simulation model. A simplified engine friction model is also incorporated to estimate the brake power output. Further, a simple knock model is used to make sure of knock free engine operation. Model is calibrated and validated to a Ford Falcon AU six-cylinder gasoline engine.
Nine different engine-operating parameters are considered as input variables for the optimization; spark timing, equivalence ratio, compression ratio, inlet and exhaust vale opening timing and durations, maximum inlet valve lift and manifold pressure. Significant improvement of the engine power output for a given amount of induced gas is observed with the optimized conditions when compared to the corresponding power output with the reference engines normal operating conditions. Further, the importance of variable compression ratio and intelligent valve control, for maximum power output for a given amount of mass induced, is understood from this investigation

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