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Achieving Near - Zero Emissions on Light - Duty Gasoline Vehicles
Technical Paper
2003-26-0001
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The integration of advanced emission control technologies including advanced three-way catalysts and advanced, high cell density, ultra-thin wall substrates with advanced gasoline powertrains and advanced engine controls is necessary to achieve near-zero tailpipe emission requirements like California's SULEV or PZEV light-duty certification categories. The first gasoline vehicles meeting these near-zero regulations have been introduced in California in 2001. Advanced three-way catalysts targeted for these near-zero regulations feature layered architectures, thermally stable oxygen storage components and segregated precious metal impregnation strategies. Engine calibration strategies focused on tight stoichiometric air/fuel control and fast catalyst heat-up immediately after engine start are important enablers to achieve near-zero hydrocarbon and NOx emissions.
Topic
Citation
Kubsh, J., "Achieving Near - Zero Emissions on Light - Duty Gasoline Vehicles," SAE Technical Paper 2003-26-0001, 2003, https://doi.org/10.4271/2003-26-0001.Also In
References
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