𝐻_∞ Control Theory for Combustion Control of Diesel Engine with a Multiple Injection

Abstract

In combustion control system of diesel engines, a multiple injection is commonly used, and the fuel quantity and the timing of each injection should be properly controlled. Therefore, the combustion control is essentially a multi-input and multi-output (MIMO) control problem. In this paper, we apply an 𝐻_∞ control theory, which can design a controller for MIMO system systematically, to the combustion control. Further, the selection of weighting functions are discussed. The effectiveness of the proposed method is evaluated by conducting simulations.