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The System Development of Electrically Heated Catalyst (EHC) for the LEV and EU-III Legislation
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Abstract
Future requirements of the legislative body in the USA and Europe, towards the reduction of exhaust emissions of motor vehicles, forces the automobile industry to improve its technology continually. An electrically heated catalyst, abbreviated EHC, offers a very high potential for exhaust gas reduction in the cold start phase of the engine.
A team of German automobile manufacturers is therefore developing a complete EHC System and laying down specifications which will enable the supply industry to undertake goal-orientated development of following components. The complete system comprises the components: heated catalyst, electricity supplier, electronic control, cables, plug and socket connections, secondary air system and their respective functions. In the following, the possible variations of the EHC system are explained and the components presented.
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Citation
Pfalzgraf, B., Otto, E., Wirth, A., Küper, P. et al., "The System Development of Electrically Heated Catalyst (EHC) for the LEV and EU-III Legislation," SAE Technical Paper 951072, 1995, https://doi.org/10.4271/951072.Also In
References
- SAE-Paper 940 782 High Temperature Durability of Electrically Heated Extruded Metal Support Reddy K.P. Gulati Suresh T. Lambert David W. Weiss David S.
- SAE-Paper 940 464 New Technology for Reducing the Power Consumption of Electrically Heated Catalysts Yaegashi Takehisa Yoshizake Kouji Nagami Tetuo Sugiuram Shigiko Yoshinaga Tohru Ohsawa Katsuyuki
- SAE-Paper 940 465 1994 Ultra-Low-Power Electrically Heated Catalyst System Küper, P.F. Maus, W. Swars; H. Brück, R. Kaiser F-W.
- SAE-Paper 940 466 Structurally Durable EHC for the Exhaust Manifold Mizuno Hiroshige Abe Fumio Shigehau, Hashimoto Kondo Tomharu
- SAE-Paper 940 467 Fast Lightoff Non-Electrically and Electrically Heated Microlith Catalytic Converter Roychoudhury Subir Pfefferle Willian Gibbs Richard E. Webster William J. New York State
- SAE-Paper 940 468 Optimization of Extruded Electrically Heated Catalysts Socha, Louis S. Jr. Thompson David F. Weber Philip A. SAE-Paper 940 470 Heated Catalytic Converters - Competing Technologies to Meet LEV Emission Standard Langenn Peter Theissen Mario Mallog Josef Zielinski Rudolf
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- SAE Paper 902115 1990 “Air Injection to an Electrically Heated Catalyst for Reducing Cold-Start Benzene Emissions from Gasoline Vehicles” Heimrich, M. J.
- SAE Paper 912384 1991 “Experiences with Electrically Heated Catalysts” Harley, R. G. Guttridge D. L. Hansen L. A. Pawlowicz R. J. Smolinski J. M. Gandhi H. S.
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