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Sensors in the automotive exhaust – technology, status and future trends

Title data

Moos, Ralf:
Sensors in the automotive exhaust – technology, status and future trends.
2010
Event: Conference SEMTO 2010 / Sensors and Actuators , 20.-21.10.2010 , Ljubljana, Slovenia.
(Conference item: Conference , Other Presentation type)

Abstract in another language

Steadily increasing emission standards for both passenger cars and heavy duty vehicles combined with the need for fuel efficiency lead to novel powertrain concepts like the leanly operated gasoline direct injection engine, or to novel exhaust gas aftertreatment concepts like NOx storage catalysts, ammonia SCR NOx reduction (selective catalytic reduction), or even to a combination of both. Also, soot filters have been serialized.

In order to control the novel powertrain and/or exhaust gas aftertreatment systems and to monitor on-board the proper operation of these systems (on-board diagnosis, OBD), novel exhaust gas sensors are required or would at least be very helpful.

This presentation gives an overview on the technology and the status of sensors for automotive exhaust gas aftertreatment systems and it reviews the latest published results on ammonia sensors and on soot sensors. Additionally, very novel concepts to detect directly the status of automotive exhaust gas catalysts are discussed.

It will be also shown how development of exhaust gas sensors has always to be considered in interaction with exhaust gas aftertreatment systems. Hence, novel kinds of sensors have gained in importance just recently, when stricter emission regulations were announced, meaning that time is ripe for novel exhaust gas aftertreatment concepts. However, it is clear that all novel sensors do not only have to meet the technical requirements of the automotive industry but also have to be very inexpensive, reliable, and cost-effective.

Further data

Item Type: Conference item (Other)
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: 26 May 2015 11:37
Last Modified: 12 Apr 2016 06:47
URI: https://eref.uni-bayreuth.de/id/eprint/14214