2 DOF Adaptive Output Feedback Based Combustion Control of Diesel Engine with Triple Injections and Its Validation through Steady State Test

Abstract

In this paper, we propose a combustion control design scheme of diesel engine with triple fuel injections based on two-degree-of-freedom adaptive output feedback control with a model-based feedforward control. The control system is designed by considering main fuel injection timing and fuel injection quantity of pre-injection as control inputs and in-cylinder peak pressure and peak pressure timing as outputs of the system. The effectiveness of the proposed method is confirmed through engine bench test of steady state.