| 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 ;
Trucks--Fuel consumption
|
| Additional Subjects |
Automobiles ;
Fuel consumption ;
Road tests ;
Statistical data ;
Applications of mathematics ;
Light duty vehicles ;
Fuel economy
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELBD ARCHIVE |
EPA LDTP-78-10 |
|
AWBERC Library/Cincinnati,OH |
01/09/2024 |
| ELCD |
EPA LDTP-78-10 |
|
NVFEL Library/Ann Arbor, MI |
05/04/2011 |
DISPERSAL |
| NTIS |
PB-298 170 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6, [7] pages : 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 (page 6). Technical report. Cover title. "LDTP 78-10." "May, 1978." |
