Title :
Air/fuel ratio control using sliding mode methods
Author :
Pieper, J.K. ; Mehrotra, R.
Author_Institution :
Dept. of Mech. & Manuf. Eng., Calgary Univ., Alta., Canada
Abstract :
To meet demands for high performance and low fuel consumption and emissions, control of air/fuel ratio in spark ignition (SI) engines has received significant attention. Here, a nonlinear, fuel injected SI engine model is developed which includes intake manifold, fuel wall-wetting and crankshaft dynamics as well as load effects and process delays inherent in four-stroke engines. A sliding mode controller is designed and implemented for a linearized model using state estimates
Keywords :
chemical variables control; control system synthesis; filtering theory; internal combustion engines; nonlinear control systems; state estimation; variable structure systems; air/fuel ratio control; crankshaft dynamics; four-stroke engines; fuel wall-wetting; high performance; intake manifold; linearized model; load effects; low fuel consumption; process delays; sliding mode methods; spark ignition engines; Control systems; Delay effects; Engine cylinders; Fuels; Hydrocarbons; Ignition; Internal combustion engines; Manifolds; Sliding mode control; Sparks;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.783196
