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Refinement of a Dedicated E85 1999 Silverado with Emphasis on Cold Start and Cold Drivability
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 05, 2001 by SAE International in United States
Annotation ability available
Event: SAE 2001 World Congress
The University of Texas 2000 Ethanol Vehicle Challenge team remains focused on cold start, cold drivability, fuel economy, and emissions reduction for our 2000 Ethanol Vehicle Challenge entry. We used the stock PCM for all control functions except control of an innovative cold-start system our team designed. The primary modifications for improved emissions control involved ceramic coating of the exhaust manifolds, use of close-coupled ethanol-specific catalysts, use of a moddified version of the California Emissions Calibrated PCM, and our cold-start system that eliminates the need to overfuel the engine at the beginning of the FTP. Additionally, we eliminated EGR at high load to improve power density. Major modifications, such as increasing the compression ratio or pressure boosting, were eliminated from consideration due to cost, complexity, reliability, or emissions penalties. Our major effort was aimed at refining our unique solution to the cold start and cold drivability problems associated with E85.
|Technical Paper||Conversion of a 1999 Silverado to Dedicated E85 with Emphasis on Cold Start and Cold Driveability|
|Technical Paper||LEV II Applications Based on a Lean Start Calibration|
|Technical Paper||Gasoline Direct Injection - SULEV Emission Concept|
- Edward Kane - The University of Texas at Austin
- Yiqun Huang - The University of Texas at Austin
- Darius Mehta - The University of Texas at Austin
- Courtney Frey - The University of Texas at Austin
- Michael Tillerson - The University of Texas at Austin
- Zak Chavis - The University of Texas at Austin
- Shrik Aithala - The University of Texas at Austin
- Ronald D. Matthews - The University of Texas at Austin
- Matt Hall - The University of Texas at Austin
CitationKane, E., Huang, Y., Mehta, D., Frey, C. et al., "Refinement of a Dedicated E85 1999 Silverado with Emphasis on Cold Start and Cold Drivability," SAE Technical Paper 2001-01-0679, 2001, https://doi.org/10.4271/2001-01-0679.
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