||Transient cycle arrangement for heavy-duty engine and chassis emission testing /
France, Chester J.
||Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
|| U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Air Pollution. ;
Vehicle Emissions. ;
Motor vehicles--Exhaust gas--Testing--United States. ;
Automobiles--Motors--Exhaust gas--Testing--United States.
Exhaust emissions ;
Periodic variations ;
Gasoline engines ;
Diesel engines ;
Statistical data ;
Air pollution ;
New York ;
Heavy duty vehicles ;
Transient cycles ;
Los Angeles(California) ;
New York City(New York)
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||iii, 42 p. : charts ; 28 cm.
Olson Laboratories, EPA's heavy-duty cycle development contractor, has generated various nominal 5-minute chassis and engine cycles from the CAPE-21 data base. The Emission Control Technology Division of EPA has in turn, selected the best cycle in each category for which cycles were generated (both chassis and engine cycles). The final step in ECTD's HD transient cycle development effort is the arrangement of these five minute cycles into one cycle which exhibits the proper trip characteristics as determined from the CAPE-21 survey data. The purpose of this report is to identify the cycle arrangement that has the proper trip characteristics and which also meets certain practical requirements. Chassis and engine cycle arrangements for both HD gasoline and diesel vehicles are developed. The equations necessary for exhaust emission calculations are also presented.
Technical report. "August 1978." Cover title. "HDV 78-04."