Integrated model-based control and diagnostic monitoring for automotive catalyst systems
Integrated model-based control and diagnostic monitoring for automotive catalyst systems
- New search for: Muske, Kenneth R.
- New search for: Peyton Jones, James C.
- New search for: Muske, Kenneth R.
- New search for: Peyton Jones, James C.
An integrated model-based automotive catalyst control and diagnostic monitoring system is presented. This system incorporates a simplified dynamic catalyst model that describes oxygen storage and release in the catalyst and predicts the post-catalyst exhaust gas oxygen sensor signal. The model-based controller maintains the catalyst stored oxygen at a desired operating condition to prevent postcatalyst emissions breakthrough by ultimately adjusting the engine fueling. Diagnostic monitoring is performed by detecting changes in a test statistic derived from the postcatalyst sensor response. These changes, which are sensitive to both long-term catalyst deactivation effects and short-term emission control device failures, are detected based on the result of nonparametric statistical tests on a moving horizon of past test statistic values.
Document information
Integrated model-based control and diagnostic monitoring for automotive catalyst systems
2007
6 Seiten, 5 Bilder, 20 Quellen
Conference paper
English
Similar titles
An Integrated Diagnostic Process for Automotive Systems
| Springer Verlag | 2008
A statistical monitoring approach for automotive on-board diagnostic systems
| Tema Archive | 2007
Diagnostic and Control Systems for Automotive Power Electronics
| SAE Technical Papers | 2001
Diagnostic and control systems for automotive power electronics
| Automotive engineering | 2001