Guillaume Meissonnier

MODELLING OF A DIESEL ENGINE COMMON RAIL INJECTION SYSTEM

This paper is devoted to the modelling of a Diesel Common Rail Injection System. The objective is twofold : to build a simulator which will be used later for the rail pressure control scheme validation, and to get linearized models for control design. A mathematical model, based on physical equations is developed and used as a simulator. Then time responses of the rail pressure of a real engine and of the simulator are compared in order to check the accuracy of the model. A frequency domain approach is finally proposed to validate linearized control-oriented models.

SOME EXPERIMENTAL RESULTS OF AN ℋ∞ -LPV CONTROLLER APPLIED TO A DIESEL ENGINE COMMON RAIL INJECTION SYSTEM

Abstract This paper is concerned with the design of a Linear Parameter-Varying (LPV) discrete-time H∞ controller for diesel engine common rail injection systems, using the Linear Fractional Transformation (LFT) approach. Some experimental results are provided which prove the interest of this method in the engine advanced control field where simple controllers cannot ensure performances and robustness due to the system complexity.