Multivariable Control Strategy[Based on a Parameterized NMPC for Diesel Engines

In this paper, a multivariable control strategy based on a parameterized Nonlinear Model Predictive Control (NMPC) approach is proposed for a Diesel engine air path. The aim is to control the level of pollutant emissions by coordinating the Exhaust Gas Recirculation (EGR) and the Variable Geometry Turbocharger (VGT) valves simultaneously. The main feature of the proposed controller lies in its compatibility with more elaborated nonlinear representations since it uses the model as a black box predictor. Some experimental results performed on a real world Diesel engine are presented in order to emphasize the efficiency of the controller.