A cooperative program between the DOE Office of Heavy Vehicle Technology and Caterpillar is aimed at demonstrating electric turbo compound technology on a Class 8 truck engine. The goal is to demonstrate the level of fuel efficiency improvement attainable with an electric turbocompound system. The system consists of a turbocharger with an electric motor/generator integrated into the turbo shaft. The generator extracts surplus power at the turbine, and the electricity it produces is used to run a motor mounted on the engine crankshaft, recovering otherwise wasted energy in the exhaust gases. The electric turbocompound system also provides more control flexibility in that the amount of power extracted can be varied. This allows for control of engine boost and thus air/fuel ratio. The paper presents the status of development of an electric turbocompound system for a Caterpillar heavy-duty on-highway truck engine. The system architecture layout, turbo charger design features, and the development of a system control strategy are discussed. Furthermore, engine simulation results are presented, and electrical machinery developments are described. The paper also reviews the results of a thermal and structural analysis for the complete turbo charger structure.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Diesel Engine Electric Turbo Compound Technology


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Future Transportation Technology Conference & Exposition ; 2003



    Publication date :

    2003-06-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Diesel engine electric turbo compound technology

    Hopmann, U. / Algrain, M.C. | Tema Archive | 2003


    Diesel engine electric turbo compound technology

    Hopmann,U. / Algrain,M.C. / Caterpillar,US | Automotive engineering | 2003



    Diesel and turbo-electric streamliners

    Kahler, C.P. | Engineering Index Backfile | 1938


    Diesel and turbo-electric streamliners

    Kahler, C.P. | Engineering Index Backfile | 1938