STEADY-STATE AND TRANSIENT A/F CONTROL REQUIREMENTS FOR COLD OPERATION OF A 1.6 LITER ENGINE WITH SINGLE-POINT FUEL INJECTION

An engine dynamometer test facility capable of controlling temperatures from 0 deg F to 150 deg F was used to investigate A/F control characteristics of a 1.6 liter engine with single point fuel injection. Two types of tests were run. In the first, the effect of induction system temperature on manifold wall wetting and transient A/F control was determined. In the second, a cold start procedure was developed to determine the effect of engine temperature on the percent of fuel which burns by observing exhaust A/F during steady state operation while the engine warms up. It was found that transient A/F control problems due to manifold wall wetting are much greater than steady state problems associated with incomplete fuel burning.

  • Availability:
  • Supplemental Notes:
    • Presented at the SAE International Congress and Exposition Detroit, Michigan, February 25-March 1, 1985.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Aquino, C F
    • Fozo, S R
  • Publication Date: 1984

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00399067
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 850509, HS-038 588
  • Files: HSL, USDOT
  • Created Date: Aug 31 1985 12:00AM