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Replacing the lambda probe by radio frequency-based in-operando three-way catalyst oxygen loading detection

Title data

Beulertz, Gregor ; Votsmeier, Martin ; Herbst, Felix ; Moos, Ralf:
Replacing the lambda probe by radio frequency-based in-operando three-way catalyst oxygen loading detection.
In: 14th International Meeting on Chemical Sensors : IMCS 2012. - Wunstorf : AMA Verband für Sensorik und Messtechnik e.V. , 2012 . - pp. 1426-1428
ISBN 978-3-9813484-2-2
DOI: https://doi.org/10.5162/IMCS2012/P2.2.7

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No informationMO 1060/6-1, MO 1060/13-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

A novel strategy for closed-loop controlling the stoichiometric combustion of gasoline engines is presented. In contrast to common strategies which use the signal two lambda probes up-and downstream of a three way catalyst to control the engine, here the oxygen loading degree of a threeway catalyst is directly and in-operando determined by a radio frequency-based method and used as the process variable. Initial tests at a high dynamic laboratory test bench show that such a controlling strategy may lead to much lower emissions. Hence, there is a chance to replace lambda probes.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 20 Apr 2015 10:19
Last Modified: 23 Jul 2018 06:34
URI: https://eref.uni-bayreuth.de/id/eprint/10482