Crank-angle Based Active Disturbance Rejection Control for a Marine Diesel Engine

Internal combustion (IC) engines are typical event-triggered system, which makes it an advantage to design controller in the crank-angle (CA) domain rather than in the time domain. The general active disturbance rejection control (ADRC) where the sampling and control are executed at equidistant intervals in time domain has drawn a lot of attention in the last two decades. However, there is no paper that studies the application of ADRC algorithm based on the CA domain in IC engines. In this paper, a CA based ADRC controller is designed for the speed control of a marine engine. Extensive comparative simulations are given to assess the outstanding control effect of the proposed controller.