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In-operation monitoring of the soot load of diesel particulate filters : initial tests

Title data

Feulner, Markus ; Hagen, Gunter ; Piontkowski, Andreas ; Müller, Andreas ; Fischerauer, Gerhard ; Brüggemann, Dieter ; Moos, Ralf:
In-operation monitoring of the soot load of diesel particulate filters : initial tests.
2012
Event: CAPOC9 - 9th International Congress on Catalysis and Automotive Pollution Control , Aug. 29 - 31, 2012 , Brussels, Belgium.
(Conference item: Conference , Paper )

Project information

Project title:
Project's official titleProject's id
No informationMO 1060/6-2, FI 956/3-2

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Diesel particulate filters (DPF) are indispensable parts of modern automotive exhaust gas aftertreatment due to stringent emissions legislation. For a fuel-efficient control strategy, it would be beneficial to determine directly and in-operation their actual trapped soot mass. Two novel approaches – based on the electrical conductivity of trapped soot particles – emerged recently. By measuring the electrical resistance between different single walls inside the filter, the soot load is determined with local resolution. The microwave-based technique is a contactless approach that gives an integral value depending on the soot mass in the DPF. We present investigations on loading and regeneration of DPFs in a dynamometer test bench applying both methods. The results are compared with each other and correlated with the differential pressure and the soot mass. Especially the microwave-based technique has a potential for serial application.

Further data

Item Type: Conference item (Paper)
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
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: 18 May 2015 09:14
Last Modified: 15 Feb 2019 09:57
URI: https://eref.uni-bayreuth.de/id/eprint/13621