The purpose of this effort was to generate experimental data to support an assessment of the relationship between automobile fuel economy and emission control systems. Tests were made at both the engine and vehicle levels. Detailed investigations were made on cold-start emissions devices, exhaust gas recirculation systems, and air injection reactor systems. Based on the results of engine tests, an alternative emission control system and modified control strategy were implemented and tested in the vehicle. With the same fuel economy and NOx emissions as the stock vehicle, the modified vehicle reduced HC and CO emissions by about 20 percent. By removing the NOx emissions constraint, the modified vehicle demonstrated about 12 percent better fuel economy than the stock vehicle.

  • Corporate Authors:

    Jet Propulsion Laboratory

    California Institute of Technology, 4800 Oak Grove Drive
    Pasadena, CA  United States  91103

    National Highway Traffic Safety Administration

    Office of Research and Development, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142
  • Authors:
    • Dowdy, M W
    • Baisley, R L
  • Publication Date: 1979-2

Media Info

  • Pagination: 217 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00191739
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: JPL-PUB-78-21 Final Rpt., DOT-HS-808-808, DOT-TSC-N
  • Contract Numbers: DOT/TSC-RA-75-41
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jun 30 1979 12:00AM