Main Title |
Light-duty vehicle driveability procedure investigation / |
Author |
Williams, W. C.
|
CORP Author |
Amoco Oil Co., Naperville, IL. Research and Development Dept.;Environmental Protection Agency, Ann Arbor, MI. Motor Vehicle Emission Lab. |
Publisher |
Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Characterization and Applications Branch, |
Year Published |
1981 |
Report Number |
EPA-460/3-81-009; EPA-68-03-2875 |
Stock Number |
PB81-210270 |
OCLC Number |
756044829 |
Subjects |
Automobiles--Motors--Exhaust gas--Testing ;
Automobiles--Performance
|
Additional Subjects |
Automobiles ;
Performance evaluation ;
Starting ;
Stalling ;
Acceleration ;
Vibration ;
Automotive fuels ;
Automobile engines ;
Light duty vehicles ;
Driveability ;
NTISEPAMAP
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELCD |
EPA 460-3-81-009 |
|
NVFEL Library/Ann Arbor, MI |
10/11/2011 |
NTIS |
PB81-210270 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
[iv], 40, [39] p. : charts ; 28 cm. |
Abstract |
The EPA's interest in driveability stems from evidence that adjustments of some vehicle engine settings to values other than those recommended by the manufacturer can improve driveability during cold start and warmup driving but often exhaust emissions and/or fuel economy suffer as a result. Because of this, EPA may eventually consider issuing driveability guidelines or standards. Such regulations must be based on quantitative test methods but current industry test procedures are primarily subjective. Consequently EPA awarded a contract to determine whether an objective procedure could be developed for assessing vehicle cold start and warmup driveability. Nearly 200 driveability tests were conducted with this car on chassis dynamometers using various driving cycles and ambient test temperatures. Throughout each test the instrument output signals and the trained raters' evaluations of performance were computer recorded. A series of computer programs were developed to identify and measure the severity of several driveability problems. |
Notes |
Includes bibliographical references (p. 40). "EPA-460/3-81-009." "April, 1981." "Contract No. 68-03-2875"--T.p. "EPA Project Officer: J. P. Whitehead"--T.p. |