||Analysis of hot/cold cycle requirements for heavy-duty vehicles /
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. ;
Automobiles--Motors--Exhaust gas. ;
Automobiles--Motors--Exhaust gas--Testing--United States. ;
Motor vehicles--Exhaust gas--Testing--United States.
Operating characteristic curve ;
Periodic variations ;
Statistical data ;
Kolmogorov-Smirnov tests ;
Gasoline engines ;
Diesel engines ;
New York ;
Heavy duty vehicles ;
Cold starts ;
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.
||72 p. : charts ; 28 cm.
EPA has recently been involved in the development of transient engine and chassis cycles from the CAPE-21 survey data. The CAPE-21 survey data was gathered from eighty-eight in-use trucks; forty-four in New York City and forty-four in Los Angeles. Vehicle speed, engine rpm, engine power, engine temperature, and various traffic and road describers were recorded on tape, at approximately one second intervals. Prior to the actual generation of the cycles, the need for a unique cold start cycle (engine and/or chassis) was investigated. This report summarizes this investigation.
Technical report. "July 1978." Cover title. "HDV 78-05."