Title :
Multivariable EGR/spark timing control for IC engines via extremum seeking
Author :
Haskara, Ibrahim ; Zhu, Guoming G. ; Winkelman, Jim
Author_Institution :
Visteon Corp.
Abstract :
This paper proposes a closed loop multivariable EGR/Spark timing management system for maximum dilution control while maintaining a desired level of combustion stability. A combustion stability measure derived from in-cylinder ionization signals is used as feedback. An extremum seeking algorithm is employed to modulate spark timing in a slow-time scale in order to maximize the steady-state EGR amount. Simulation results based on data collected from a 3.0L V6 engine are also included to illustrate the proposed control strategy
Keywords :
closed loop systems; exhaust systems; internal combustion engines; multivariable control systems; optimal control; sparks; stability; closed loop multivariable EGR-spark timing control; combustion stability; exhaust gas recirculation; extremum seeking algorithm; feedback; in-cylinder ionization signals; internal combustion engines; spark ignition engine; Combustion; Engines; Feedback; Fuel economy; Ionization; Sparks; Stability; Steady-state; Timing; Torque;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0209-3
DOI :
10.1109/ACC.2006.1656376
