HEAVY-DUTY GASOLINE ENGINE EMISSION SENSITIVITY TO VARIATIONS IN THE 1984 FEDERAL TEST CYCLE

An attempt at quantification of emission sensitivity of heavy-duty gasoline engines to variations in the 1984 Federal Certification transient test cycle was made. A brief overview of the Federal Test Procedure is presented, followed by emission test results from several dynamometer controller miscalibration modes. In general, the results indicated that certain modes of controller calibration can produce significant emission variations well within the limits of the 1984 FTP validation criteria. The data indicated that some validation criteria require tightening or respecification to assure repeatable test results.

• Supplemental Notes:
  • Prepared for SAE Meeting October 20-23, 1980.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Cox, T P
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: 20 p.
• Serial:
  • Society of Automotive Engineers Preprint
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Calibration; Dynamometers; Exhaust gases; Gasoline engines; Internal combustion engines; Sensitivity; Test procedures; Variables
• Old TRIS Terms: 1984Federal test cycle; Cycles; Heavy duty gasoline engines
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00335112
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 801370
• Files: TRIS
• Created Date: Oct 28 1981 12:00AM