Record Display for the EPA National Library Catalog


Main Title A brief treatise on the problems associated with using one vehicle to determine the dynamometer power absorption for a second similar vehicle /
Author Thompson, Glenn D.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
Publisher 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,
Year Published 1978
Report Number LDTP 78-03
Stock Number PB80-101975
OCLC Number 713646221
Subjects Automobiles--Motors--Exhaust gas ; Dynamometer ; Vehicle Emissions
Additional Subjects Motor vehicles ; Fuel consumption ; Exhaust emissions ; Dynamometers ; Road tests ; Error analysis ; Analysis of variance ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA LDTP-78-03 AWBERC Library/Cincinnati,OH 01/17/2024
ELCD  EPA LDTP-78-03 NVFEL Library/Ann Arbor, MI 04/25/2011 DISPERSAL
NTIS  PB80-101975 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10 pages ; 28 cm
The current EPA regulations for exhaust emission certification and fuel economy measurements allow a manufacturer the option of road testing a vehicle to determine a dynamometer adjustment which will subsequently be used for all vehicles of a similar class. In the process of using the road test results from one vehicle to determine the dynamometer adjustment for a second vehicle there is the potential for error. This report briefly discusses the magnitude of these possible errors. Two specific cases are considered. In the first case the error is assumed that good engineering practices are used. In the second case it is assumed that the potential for error is used in a systematic manner to result in a reduced loading for the second vehicle.
Cover title. "March 1978." "LDTP 78-03." At head of title: Technical Support Report.