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Experiences with 20 User Vehicles Equipped with Electrically Heated Catalyst Systems - Part I
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English
Abstract
Electrically heated catalysts (EHCs) have been developed over the last few years for controlling cold-start automobile exhaust emissions. Many technical obstacles will have to be overcome to commercialize EHCs. In particular, automobile designers will face system-related issues, due to the high power demands of the EHC. This paper is the result of an effort to acquire data that will help resolve those system-related issues.
A fleet of 20 cars in normal driving service was equipped with operating EHC systems. This paper presents preliminary findings obtained after approximately six months of operation of the fleet. Preliminary battery and component durability are presented, as well as representative emission results.
A second paper (Part II) is envisioned to present findings after approximately two years of operation.
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Citation
Whittenberger, W., Sheller, D., and Walters, J., "Experiences with 20 User Vehicles Equipped with Electrically Heated Catalyst Systems - Part I," SAE Technical Paper 920722, 1992, https://doi.org/10.4271/920722.Also In
References
- CVS NEWS October 1990 Sierra Research, Inc.
- Gottberg I. Rydquist J.E. Backlund O. Wallman S. Maus W. Bruck R. Swars H. “New Potential Exhaust Gas Aftertreatment Technologies for Clean Car Legislation,” SAE Paper # 910840
- Whittenberger W.A. Kubsh Joseph E. “Electrically Heated Metal Substrate Durability,” SAE Paper # 910613
- Kubsh Joseph E. Lissiuk Peter W. “Vehicle Emission Performance With an Electrically Heated Converter System,” SAE Paper # 912385
- Heimrich Martin J. Albu Steve Osborne Juan “Electrically Heated Catalyst System Conversions on Two Current Technology Vehicles,” SAE Paper # 910612