Cold start emissions optimisation using an expert knowledge based calibration methodology

A. C. McNicol, H. Figueroa-Rosas, C. J. Brace, M. C. Ward, R. V. Ceen

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

8 Citations (SciVal)


As emissions regulations become more stringent, an efficient and effective method of rig-based transient engine calibration becomes increasingly desirable. It is known that approximately 80% of total drive-cycle exhaust emissions can be produced in the initial warm-up phase before catalyst 'light-off' is achieved and catalyst conversion efficiency increases. During this period, there is a clear trade-off that can be made in the strategy between the amount of thermal energy that is delivered to the catalyst and the amount of exhaust emissions produced during the time before catalyst 'light-off' is achieved. This paper examines whether an automated expert-knowledge based decision-making methodology can be used to find a satisfactory trade-off between these two parameters whilst reducing the iteration time and level of input required from a calibration engineer.

Original languageEnglish
Title of host publication2004 SAE World Congress
PublisherSAE International
ISBN (Print)0768013194, 9780768013191
Publication statusPublished - 8 Mar 2004
Event2004 SAE World Congress - Detroit, MI, USA United States
Duration: 8 Mar 200411 Mar 2004

Publication series

NameSAE 2004 World Congress & Exhibition
PublisherSAE International
ISSN (Print)0148-7191
ISSN (Electronic)2688-3627


Conference2004 SAE World Congress
Country/TerritoryUSA United States
CityDetroit, MI

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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