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.
Refinement of a Dedicated E85 1999 Silverado with Emphasis on Cold Start and Cold Drivability
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Conference paper
English
Refinement of a dedicated E85 1999 Silverado with emphasis in cold start and cold drivability
Automotive engineering | 2001
|British Library Conference Proceedings | 2001
|Conversion of a 1999 Silverado to dedicated E85 with emphasis on cold start and cold driveability
Automotive engineering | 2000
|Conversion of a 1999 Silverado to Dedicated E85 with Emphasis on Cold Start and Cold Driveability
SAE Technical Papers | 2000
|Conversion of a 1999 Silverado to dedicated E85 with emphasis on cold start and cold driveability
Automotive engineering | 2000
|