| Main Title |
Tire-dynamometer roll effects / |
| Author |
Burgeson, Richard N.
|
| CORP Author |
Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch. |
| Publisher |
U.S. Environmental Protection Agency, Office of Air and Waste Mangement, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch, |
| Year Published |
1978 |
| Report Number |
EPA-AA-LDTP-77-4 |
| Stock Number |
PB80-142839 |
| OCLC Number |
173418807 |
| Subjects |
Dynamometers ;
Tire Testing ;
Rolling Resistance
|
| Additional Subjects |
Automobiles ;
Tires ;
Dynamometers ;
Rolling contact loads ;
Rolling friction ;
Aerodynamic loads ;
Analysis of variance ;
Data acquisition ;
Fuel consumption ;
Exhaust emissions ;
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELCD |
EPA AA-LDTP-77-4 |
|
NVFEL Library/Ann Arbor, MI |
08/27/2013 |
| NTIS |
PB80-142839 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
22, [44] p. : charts ; 28 cm. |
| Abstract |
The Federal Government currently determines light-duty vehicle fuel economy and emissions on the twin small-roll dynamometer. The geometry of the dynamometer-vehicle system is one which cannot be duplicated under actual driving conditions because only the rear tires are placed on the dynamometer and the surface upon which they are placed is curved. Recently, questions have been raised as to the validity of the assumption that two tires on the dynamometer equals four tires on the road with regard to all tire construction types. However, it has been suggested that when radial tires are operated on the twin small-roll dynamometer they exhibit higher rolling resistance than the other construction types under the same conditions. Lack of information prompted an in-house investigation into the effects of the twin-small-roll dynamometer on tires. |
| Notes |
Includes bibliographical references (p. 22). Technical report. Cover title. "LDTP - 77-4." "March 1978." |
| Place Published |
Ann Arbor, Mich. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Air and Waste Mangement. Office of Mobile Source Air Pollution Control. Emission Control Technology Division. Standards Development and Support Branch. |
| NTIS Title Notes |
Technical rept.. |
| PUB Date Free Form |
Mar 78 |
| Category Codes |
13F; 14B; 85H |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
200/05 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| Control Number |
323775009 |
| OCLC Time Stamp |
20110412103417 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01265cam 2200301Ka 45020 |
