A method for self-tuning a PID controller for control of small to medium sized diesel engines

Abstract

A self-tuning PID controller designed to control a small to medium-sized diesel engine model is discussed. This controller resembles a parameter adaptive controller while it is in the tuning phase. When it is not tuning it functions like a closed-loop PID controller. The model used to represent the diesel engine contains nonlinearities and widely ranging parameters. Computer simulations were used to verify that the tuned system's phase and gain margins meet design requirements.<>