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Real-time capable parameter tuning for exhaust gas aftertreatment models in automotive applications

Title data

Schödel, Sebastian ; Jungkunz, Thomas ; Królak, Radoslaw ; Fischerauer, Gerhard:
Real-time capable parameter tuning for exhaust gas aftertreatment models in automotive applications.
In: Lerch, Reinhard ; Werthschützky, Roland (ed.): Proceedings of the 16th International Conference on Sensors and Measurement Technology (Sensor 2013). - Berlin : AMA Verband für Sensorik und Messtechnik e.V. , 2013 . - pp. 373-378
ISBN 978-3-9813484-3-9
DOI: https://doi.org/10.5162/sensor2013/C2.4

Abstract in another language

State-of-the-art control strategies for spark ignition engines take into account the oxygen storage level of the indispensable three-way catalyst (TWC) by a model-based approach. Owing to the limited onboard processing power, the models used are simplified compared to the actual system dynamics. Their accuracy can be improved by an additional direct state observation, e. g., with microwave measurement systems in which the catalyst state is inferred from measured cavity resonance curves. However, the accuracy of time-invariant models deteriorates with time because of catalyst aging. We present a real-time capable method to adjust the parameters of a TWC model by continuously comparing measured resonance frequencies with frequencies computed by a linearized RF model.

Further data

Item Type: Article in a book
Refereed: No
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 09 Mar 2016 09:49
Last Modified: 21 Apr 2016 11:43
URI: https://eref.uni-bayreuth.de/id/eprint/31655