Abstract
An internal combustion engine involves thermodynamic processes, fluid, mechanics and chemical reactions resulting in complex and non-linear dynamic models. Using such a model for a spark ignition (SI) engine implemented in Simulink, in this paper a control system based on an intelligent proportional (iP) controller has been developed to control a desired engine speed in response to transient load changes. By means of the Model Free Control (MFC) methodology, the iP controller was built and the proportional tuning parameter has been determined to fulfill the stability of the control system. The iP controller performances were evaluated through simulation in comparison with a PI algorithm considering an engine-driven generator used in a series hybrid car architecture for which the load torque given by city and US06 cycles operation was taken into account. The simulation results show the feasibility of the model free control strategy.
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