Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A Method for Estimating Soot Load in a DPF using an RF-based Sensor
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
En metod för skattning av sotmassan i en DPF med RF-baserad sensor (Swedish)
Abstract [en]

The European emission standard is an EU directive which describes what emission limits car manufactures are required to meet. In order to meet these requirements car manufacturers use different techniques and components. In a modern diesel automobile a Diesel Particulate Filter (DPF) is used to gather soot from the exhausts. As soot accumulates in the DPF, the back pressure increases and the capability to hold more soot decreases. Therefore the DPF continuously needs to get rid of the stored soot. The soot is removed through a process called regeneration. In order to optimize when to perform regeneration, it is vital to know the amount of soot in the filter.

A method for estimating the soot mass in a DPF using a radio frequency-based sensor has been developed. The sensor that has been studied is the Accusolve soot sensor from General Electric. A parameter study has been performed to evaluate the parameters that affects the sensor’s output. Parameters that have been studied include positioning of the sensor, temperature in the DPF, flow rate through the DPF and distribution of soot in the DPF. Different models for estimation of soot mass in the DPF has been developed and analyzed.

An uncertainty caused by removing the coaxial cable connectors when weighing the DPF has been identified and methods for minimizing this uncertainty has been presented. Results show that the sensor output is sensitive to temperature, soot distribution and position, and also show some sensitivity to the flow rate. An ARX model, with only one state, is proposed to estimate the soot mass in the DPF, since it gives the best prediction of soot mass and showed good resistance to bias errors and noise in all the input signals.

Place, publisher, year, edition, pages
2012. , 77 p.
Keyword [en]
Soot Sensor, Diesel Particulate Filter, Black Box, Average Gain
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-77970ISRN: LiTH-ISY-EX--12/4584--SEOAI: oai:DiVA.org:liu-77970DiVA: diva2:535349
External cooperation
Volvo Cars
Subject / course
Vehicular Systems
Presentation
2012-06-11, Algoritmen, Linköping, 10:00 (Swedish)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-06-21 Created: 2012-06-01 Last updated: 2012-09-10Bibliographically approved

Open Access in DiVA

fulltext(4298 kB)253 downloads
File information
File name FULLTEXT01.pdfFile size 4298 kBChecksum SHA-512
e2d6f4db816f65a22b21918829a481a4dc69449aa6938930ef3f63fc6ee8e39ce672d48222dee21dbce131aaf9d60035c019c2d291a6725b6e02031511ff4608
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Ingeström, VictorHansson, John
By organisation
Department of Electrical EngineeringThe Institute of Technology
Other Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 253 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 439 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf