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Model Based Diagnosis of the Air Path of an Automotive Diesel Engine Nyberg, Mattias ; Stutte, Thomas ; Wilhelmi, Volker
Publication details: Linköping Linköping University, 2001; Dept. of Electrical Engineering, ; DaimlerChrysler AG, Description: 377,4 KBSubject(s): Online resources: Abstract: A model based diagnosis system for the air-path of a turbo-charged diesel engine with EGR is constructed. The faults considered were air-mass ow sensor fault, intake-manifold pressure sensor fault, air-leakage, and the EGR-valve stuck in closed position. A non-linear engine model, with four states, is constructed. The diagnosis system is then constructed in the framework of structured hypothesis tests, andby using adaptive observers. The diagnosis system is successfully evaluated in a real car driving on the road.No physical items for this record
A model based diagnosis system for the air-path of a turbo-charged diesel engine with EGR is constructed. The faults considered were air-mass ow sensor fault, intake-manifold pressure sensor fault, air-leakage, and the EGR-valve stuck in closed position. A non-linear engine model, with four states, is constructed. The diagnosis system is then constructed in the framework of structured hypothesis tests, andby using adaptive observers. The diagnosis system is successfully evaluated in a real car driving on the road.