Real-world performance of catalytic converters
journal contributionposted on 12.06.2009 by S. Samuel, D. Morrey, Mark Fowkes, D.H.C. Taylor, Colin Garner, L. Austin
Any type of content formally published in an academic journal, usually following a peer-review process.
This paper investigates experimentally the performance of a three-way catalytic (TWC) converter for real-world passenger car driving in the United Kingdom. A systematic approach is followed for the analysis using a Euro-IV vehicle coupled with a TWC converter. The analysis shows that the real-world performance of TWC converters is significantly different from the performance established on legislative test cycles. It is identified that a light-duty passenger vehicle certified for Euro-IV emissions reaches the gross polluting threshold limits during real-world driving conditions. This result is shown to have implications for overall emission levels and the use of remote emissions sensing and on-board diagnostics (OBD) systems.
- Mechanical, Electrical and Manufacturing Engineering