Robust Feedback Linearization Approach for Fuel-Optimal Oriented Control of Turbocharged Spark-Ignition Engines

Tran Anh-Tu Nguyen (1) , Thierry-Marie Guerra (1) , Jimmy Lauber (1)

1 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201

This chapter proposes a new control approach for the turbocharged air system of a gasoline engine. To simplify the control implementation task, static lookup tables (LUTs) of engine data are used to estimate the engine variables in place of complex dynamical observer and/or estimators. The nonlinear control design is based on the concept of robust feedback linearization which can account for the modeling uncertainty and the estimation errors induced by the use of engine lookup tables. The control feedback gain can be effectively computed from a convex optimization problem. Two control strategies have been investigated for this complex system: drivability optimization and fuel reduction. The effectiveness of the proposed control approach is clearly demonstrated with an advanced engine simulator.

Mots clés: turbocharged gasoline engine; engine control; robust control; feedback linearization; linear matrix inequality

Domaines: Automatique / Robotique

Tran Anh-Tu Nguyen, Thierry-Marie Guerra, Jimmy Lauber. Robust Feedback Linearization Approach for Fuel-Optimal Oriented Control of Turbocharged Spark-Ignition Engines. Intelligent and Efficient Transport Systems - Design, Modelling, Control and Simulation, IntechOpen, 2020, ⟨10.5772/intechopen.91666⟩. ⟨hal-03405439⟩