MODELING, SIMULATION AND MODEL OPTIMIZATION OF INTERNAL COMBUSTION ENGINE FOR PHERB POWERTRAIN

Abstract

Internal combustion engine (ICE) is the most important part in vehicle. Generally, the combustion of ICE is facilitated by petrol and exhaust gas emission from vehicles is a primary contributor to the environmental pollution problem. In this research, Plug-in hybrid electric recreational boat (PHERB) is introduced and PHERB has a combination of energy storage system, ICE and electric machine. The objective of this work is to derive a detailed model of ICE in MATLAB/SIMULINK environment, develop proportional-integral (PI) controller for ICE and optimize ICE using a Genetic Algorithm (GA) based on PI controller. The efficiency of ICE for PHERB obtained was 40 % at rotational speed 4000 rpm of the engine. Via using the GA, the optimal performance of ICE is found by power demand curve, as a reference for the model with mutation probability used is 0.085. In terms of the performance results, the optimal tuning parameters of ICE for PHERB had a significantly improved performance towards green and clean technology.