The effect of CVS test parameters other than temperature on exhaust emissions was determined. Dynamometer inertia weight, road load horsepower, vehicle engine tune adjustments and smoothing the emission test driving schedule parameters were evaluated. Actual vehicle road load horsepower was measured by coast-down time and engine manifold vacuum. Tests were performed on 50 1968 through 1975 model year vehicles. 1975 and Modified 1972 Federal Test Procedures were used. Observed differences in exhaust emission and fuel economy test results were tested for statistical significance.

  • Corporate Authors:

    Automotive Environmental Systems, Incorporated

    7300 Bolsa Avenue
    Westminster, CA  United States  92683

    California Air Resources Board

    1001 I Street, P.O. Box 2815
    Sacramento, CA  United States  95812
  • Authors:
    • Runner, T
  • Publication Date: 1976-2

Media Info

  • Pagination: 136 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00136511
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Final Rpt., ARB-R-4-726-76-42
  • Contract Numbers: ARB-4-726
  • Files: TRIS
  • Created Date: Jul 13 1976 12:00AM