Model-based engine fault detection using cylinder pressure estimates from nonlinear observers

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:70847

Kao, M; Moskwa, J J ^[1]

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1. Univ. of Wisconsin, Madison, WI (United States)

There are two indicated torque input observers presented in paper. The input estimation problem is transformed into the control tracking problem. The sliding mode control with integrator and PI with feedforward control are used for tracking control blocks. The indicated torque estimations are applied to detect engine firing faults. Cylinder pressure centroid and cylinder pressure difference approaches for engine diagnostics are also discussed in this paper. Simulation results for a six-cylinder engine with abnormal combustion are plotted to show engine combustion problems.

• OSTI ID: 70847
• Report Number(s): CONF-941216-; TRN: 95:004350-0034
• Resource Relation: Conference: 33. Institute of Electrical and Electronic Engineers (IEEE) conference on decision and control, Orlando, FL (United States), 14-16 Dec 1994; Other Information: PBD: 1994; Related Information: Is Part Of Proceedings of the 33rd IEEE conference on decision and control; PB: 4347 p.
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
TORQUE
MONITORING
CONTROL SYSTEMS
MATHEMATICAL MODELS
DESIGN
INTERNAL COMBUSTION ENGINES
CYLINDERS
PRESSURE MEASUREMENT
CONTROL
COMPUTERIZED SIMULATION