This paper describes the results of studies on the behavior of air-fuel ratios under feedback control, the effect of air-fuel ratio modulation on three-way catalyst conversion efficiency and emission test results with and without feed back control. This report describes the governing characteristics of an air-fuel ratio control system using an EF1 engine coupled to a ZrO2 type O2 sensor and feed back loop. The conversion efficiency characteristics of a conventional three-way catalyst, using systemtically modulated air-fuel ratios, and the resultant reduction of exhaust emissions with these systematic fluctuations and limited perturbations are also defined. /GMRL/

  • Supplemental Notes:
    • This paper is from Inter-Industry Emission Control, Report No. 3.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Kaneko, Y
    • Kobayashi, H
  • Publication Date: 1977

Media Info

  • Pagination: 24 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00158421
  • Record Type: Publication
  • Report/Paper Numbers: SAE 770197, SAE SP-414
  • Files: TRIS
  • Created Date: Oct 29 1977 12:00AM