RECOMMENDED PRACTICE FOR DETERMINING EXHAUST EMISSIONS FROM HEAVY-DUTY VEHICLES UNDER TRANSIENT CONDITIONS

This recommended practice represents the completion of one phase of EPA's transient cycle development effort. The finalized chassis procedures detailed here parallel the engine test procedures recently published as subpart N of the Heavy-Duty Notice of Proposed Rulemaking (NPRM). The engine test will remain for EPA the primary means of determining transient heavy-duty emissions; however, the chassis test will be available when total-vehicle testing is desired (for example, for a radically new engine design, for in-use programs, or perhaps for future durability testing on in-service vehicles). This report contains a bibliography of EPA technical reports and contract reports which document various aspects of the chassis driving cycle and engine cycles' development.

• Corporate Authors:

  Environmental Protection Agency

  Standards Development & Support Branch, 2565 Plymouth Road
  Ann Arbor, MI  United States  48105
• Authors:
  • FRANCE, C J
  • CLEMMENS, W
  • WYSOR, T
• Publication Date: 1979-2

Media Info

• Pagination: 84 p.

Subject/Index Terms

• TRT Terms: Air pollution; Calibration; Dynamometers; Engines; Exhaust gases; Heavy vehicles; Inspection; Maintenance; Measurement; Performance tests; Trucks
• Old TRIS Terms: Cycles
• Subject Areas: Highways; Maintenance and Preservation; Motor Carriers; Vehicles and Equipment;

Filing Info

• Accession Number: 00314277
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: CPA-AA-SDSB-79-08, Technical Report
• Files: TRIS
• Created Date: Aug 27 2002 12:00AM