Identifiability of Turbocharged IC Engine Models

Glad, Torkel,1947-Linköpings universitet,Reglerteknik,Tekniska högskolan (författare)

The paper deals with the problem of identifiability of mean-value models of turbocharged IC engines. A way of reducing such models to linear regressions using differential algebra is presented. The conditions of the global identifiability and the persistent excitation are formulated in explicit form for a given set of sensors. It is accompanied with the discussion how to reduce the set of sensors required for engine identification. As a side product it is shown how to use regressors derived for estimation and/or verification of some static nonlinearities using dynamic test data. The results obtained can be used for both model-based FDI (fault detection and isolation) and engine control purposes but mainly for automatic generation of engine test plans and identification.

Sokolov, AndeyLinköpings universitet,Reglerteknik,Tekniska högskolan (författare)
Linköpings universitetReglerteknik (creator_code:org_t)

Ingår i:Proceedings of the SAE 1999 International Congress & Exposition400 Commonwealth Drive, Warrendale, PA, United States : SAE International
Ingår i:SAE Technical Paper Series400 Commonwealth Drive, Warrendale, PA, United States : SAE International0148-7191

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