Record Display for the EPA National Library Catalog

RECORD NUMBER: 33 OF 271

OLS Field Name OLS Field Data
Main Title Comparison of fuel economy values from the preconditioning and measuring cycles of the highway fuel economy test procedure /
Author Torres, Myriam.
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 78-10
Stock Number PB-298 170
OCLC Number 716211203
Subjects Automobiles--Fuel consumption--Measurement. ; Automobiles--United States--Fuel consumption. ; Trucks--United States--Fuel consumption.
Additional Subjects Automobiles ; Fuel consumption ; Road tests ; Statistical data ; Applications of mathematics ; Light duty vehicles ; Fuel economy
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100WY0B.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD  EPA LDTP-78-10 NVFEL Library/Ann Arbor, MI 05/04/2011
NTIS  PB-298 170 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 6, [7] p. : charts ; 28 cm.
Abstract
The Highway Fuel Economy Dynamometer Procedure consists of driving the test vehicle over two highway driving cycles with fifteen seconds of idle between them. The first cycle is for preconditioning and the second is for fuel economy determination. This procedure is designed to follow the Federal Emission Test Procedure. If, however, it cannot be scheduled within three hours of the FTP, the vehicle will be re-driven over one cycle of the EPA Urban Dynamometer Driving Schedule, known as the LA-4, before running the two highway driving cycles. Since the vehicles are driven either over a FTP or a LA-4 prior to the highway fuel economy test, the vehicles may already be in a stabilized condition during the first cycle. Therefore, a study was conducted to determine if it is necessary to run the second highway cycle. This report presents summary statistics of the absolute and relative % differences between the fuel economy determinations of the two cycles and compares these differences to the time elapsed between the end of the FTP (or LA-4) and the start of the highway test.
Notes
Includes bibliographical references (p. 6). Technical report. Cover title. "LDTP 78-10." "May, 1978."