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Metoder för synkronisering av körförlopps- och emissionsdata
Swedish National Road and Transport Research Institute.
2006 (Swedish)Report (Other academic)Alternative title
Methods for synchronizing driving patterns and emission data (English)
Abstract [sv]

Empirical investigations of the connection between driving patterns and exhaust emissions are an important basis for estimating emissions from road traffic. A well-known and important measurement problem is the non-constant time delay that arises between engine data (e.g fuel consumption) and emission data. In the report, a number of different suggestions for synchronizing these data are discussed. Three of these methods are investigated in more detail and compared to one another. One of the methods involves matching the minima of lambda values and the corresponding maxima of the carbon monoxide or hydrocarbon rates. The other two methods are based on models for the gas flow through the exhaust system. One of these ("quasi-stationary model") is very simple while the other makes use of more sofisticated gasdynamical models. Due to lack of independent validation data the methods have been evaluated by mutual comparison of their results. Our conclusion is that the quasi-stationary method is the most useful one. The gasdynamical approach does not yield any substantial improvement.

Place, publisher, year, edition, pages
Linköping: VTI., VTI rapport 525 , 2006. , 90 p.
Series
VTI rapport, ISSN 0347-6030
Keyword [en]
Emission, Time, Engine, Exhaust pipe, Calculation, Measurement, Method, Mathematical model
Research subject
Road: Vehicles and vehicle technology, Road: Vehicles and the environment
Identifiers
URN: urn:nbn:se:vti:diva-6415OAI: oai:DiVA.org:vti-6415DiVA: diva2:675292
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2013-12-03

Open Access in DiVA

fulltext(777 kB)36 downloads
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Karlsson, Rune
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Swedish National Road and Transport Research Institute

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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