Improved Catalyst Systems for SULEV Legislation: First Practical Experience 2000-01-0500
In order to achieve SULEV emission legislation the overall efficiency of the exhaust gas aftertreatment system has to be increased. Beside engine-out emissions and air/fuel ratio control especially during cold start and during transient driving conditions the catalyst has to be optimized regarding cold start and efficiency under warmed-up conditions. The paper will show emission test results of different catalyst designs (various cell-densities and foil thicknesses, cone-shape catalysts and electrically heated catalysts) measured on a dynamic engine test bench. With an optimized SULEV catalyst system emission tests in a close-coupled position of a mid-size passenger car will be presented.
Citation: Holy, G., Brück, R., and Hirth, P., "Improved Catalyst Systems for SULEV Legislation: First Practical Experience," SAE Technical Paper 2000-01-0500, 2000, https://doi.org/10.4271/2000-01-0500. Download Citation
Author(s):
G. Holy, R. Brück, P. Hirth
Affiliated:
AVL List GmbH, Graz, Emitec GmbH, Lohmar
Pages: 9
Event:
SAE 2000 World Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Advanced Three-way Catalysts-PT-123, Advanced Catalysts Substrates and Advanced Converter Packaging-SP-1532, SAE 2000 Transactions Journal of Fuels and Lubricants-V109-4
Related Topics:
Environmental testing
Catalysts
Low emission vehicles (LEV) and zero emission vehicles (ZEV)
Emissions certification
Emissions
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