ASSESSMENT OF THE APPLICABILITY OF MECHANICAL ENERGY STORAGE DEVICES TO ELECTRIC AND HYBRID VEHICLES: VOLUME 1 - EXECUTIVE SUMMARY

This study assesses the ability of mechanical energy storage devices to improve the performance of electric vehicles. The power and energy required in a storage device to realize specific improvements upon current and near-term electric vehicle performance specifications are calculated. A review of candidate mechanical energy storage devices, concludes that only flywheels and, for some applications, hydraulic accumulators are practical in this context. With respect to each performance specification, data is presented on the vehicle-mass fraction of the mechanical energy storage system as a function of its specific energy and the overall vehicle mass. The study indicates that mechanical energy storage devices may or may not improve range, depending on the particular configuration of the vehicle and the driving cycle.

  • Corporate Authors:

    University of California, Livermore

    Lawrence Livermore National Laboratory
    Livermore, CA  United States  94550

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  United States  20585
  • Authors:
    • Schwartz, M W
  • Publication Date: 1979-5-1

Media Info

  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00305500
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: W-7405-ENG-48
  • Files: TRIS
  • Created Date: Feb 11 1980 12:00AM