Stabilizing controllers for Diesel engine speed

This paper deals with a model-based approach to stabilize the engine speed around a defined value. The engine speed is modeled as a non-linear model containing explicitly the expression of the fuel conversion efficiency. Generally speaking, in literature, the modeling of this quantity obtained from experiments has two main expressions defined as polynomial or exponential forms. This paper focuses on the engine speed stabilization when the fuel conversion efficiency is modeled with the exponential form which is more realistic. This work proposes a new smooth stabilization law around a desired engine speed value. Simulation results are proposed to highlight the closed-loop control accuracy.