Improvements of fuel economy of passenger cars and light- and heavy-duty trucks are being considered using a flywheel energy storage system concept to reduce the amount of mechanical energy produced by the thermal engine recovering the vehicle kinetic energy during braking and then assisting torque requirements. The mechanical system has an overall efficiency over a full regenerative cycle of about 70%, about twice the efficiency of battery-based hybrids rated at about 36%. The technology may improve the vehicle fuel economy and hence reduced CO₂ emissions by more than 30% over driving cycles characterized by frequent engine start/stop, and vehicle acceleration, brief cruising, deceleration and stop.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improvements of Vehicle Fuel Economy Using Mechanical Regenerative Braking


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2010 Annual Brake Colloquium And Engineering Display ; 2010



    Publication date :

    2010-10-10




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Improvements of vehicle fuel economy using mechanical regenerative braking

    Boretti,A.A. / Univ.of Ballarat,AU | Automotive engineering | 2011



    Fuel economy goals for vehicles with regenerative braking energy storage systems

    Gilmore,D.B. / Univ.of Queensland,Dep.of Mechanical Engineering,AU | Automotive engineering | 1992