Model Based Diagnosis of the Air Path of an Automotive Diesel Engine

  title={Model Based Diagnosis of the Air Path of an Automotive Diesel Engine},
  author={Mattias Nyberg and Thomas Stutte and Volker Wilhelmi},
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 flow 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, and by using adaptive observers. The diagnosis system is successfully evaluated in a real… CONTINUE READING
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