Robust engine speed control based on nonlinear Takagi-Sugeno fuzzy systems with time-delay

In this study, the engine speed control algorithm is developed. The system augmented method based on the local linearized dynamic internal combustion engine model is presented for design of feedback controller without steady-state error. For multi-operating points local linearization of engine model the Takagi-Sugeno (T-S) fuzzy models with time-delay are presented, and the stability conditions are derived using Lyapunov-Krasovskii approach. The stabilizing fuzzy state feedback controllers are presented for time-delay fuzzy systems with disturbance, and the property of robust H_infin disturbance attenuation is introduced. Finally, simulations attest to the properties of these methods.