The University of Texas Ethanol Vehicle Challenge team focused upon cold start/driveability, fuel economy, and emissions reduction for our 1999 Ethanol Vehicle Challenge entry. We replaced or coated all fuel system components that were not ethanol compatible. We used the stock PCM for all control functions except control of a novel 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, increased EGR for the operating conditions of the five longest cruises on the FTP, and our cold-start system that eliminates the need to overfuel the engine at the beginning of the FTP. This EGR control scheme should also benefit urban fuel economy. 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 developing a unique solution to the cold start and cold driveability problems associated with E85.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Conversion of a 1999 Silverado to Dedicated E85 with Emphasis on Cold Start and Cold Driveability


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2000 World Congress ; 2000



    Publication date :

    2000-03-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Conversion of a 1999 Silverado to dedicated E85 with emphasis on cold start and cold driveability

    Ku,J. / Huang,Y. / Hollowell,B. et al. | Automotive engineering | 2000


    Conversion of a 1999 Silverado to dedicated E85 with emphasis on cold start and cold driveability

    Ku,J. / Huang,Y. / Hollowell,B. et al. | Automotive engineering | 2000


    2000-01-0590 Conversion of a 1999 Silverado to Dedicated E85 with Emphasis on Cold Start and Cold Driveability

    Ku, J. / Huang, Y. / Hollowell, B. et al. | British Library Conference Proceedings | 2000


    Refinement of a Dedicated E85 1999 Silverado with Emphasis on Cold Start and Cold Drivability

    Frey, Courtney / Mehta, Darius / Kane, Edward et al. | SAE Technical Papers | 2001


    Refinement of a dedicated E85 1999 Silverado with emphasis in cold start and cold drivability

    Kane,E. / Huang,Y. / Mehta,D. et al. | Automotive engineering | 2001