| Main Title |
Second by Second Exhaust Emissions Data Recorded during Federal Test Procedures UDDS Runs (for Microcomputers). |
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Publisher |
Apr 94 |
| Year Published |
1994 |
| Report Number |
EPA/DF/DK-94/113; |
| Stock Number |
PB94-501780 |
| Additional Subjects |
Exhaust emissions ;
Automobile exhaust ;
Software ;
Data bases ;
Diskettes ;
Federal test procedure ;
Dynamometers ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB94-501780 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
4 diskettes |
| Abstract |
Second by second emission data for 80 FTP (Federal Test Procedures) UDDS Runs on 13 vehicles are included. Product gives the results of analyses using real-time dynamometer test emissions data from 13 passenger cars to examine variations in emissions during different speeds or modes of travel. The resulting data provided a way to separately identify idle, cruise, acceleration, and deceleration emissions for examining how emissions differ by vehicle speed during the cruise mode. To select a set of vehicles for the study, the hydrocarbon (HC)/time relationship was established for several vehicles operating on summer-grade fuel. Federal Test Procedure results were then produced and examined to identify normal emitters (clean vehicles). After these vehicles were selected, their second-by-second emission characteristics were analyzed. The FTP runs for cold start, hot start, and hot stabilized emissions (Bags 1, 2, and 3 of the FTP) were performed for each of the four driving cycles-acceleration, deceleration, idling, and cruise-and the fraction of overall emissions contributed by each mode was computed for the warmed-up portion of the driving cycle. A protocol was then developed for review of the FTP real-time data. Study results showed significant emissions differences relating to the travel mode. |
| Supplementary Notes |
Disk 1 through 3 contains data. Disk 4 contains Lotus 123 Spreadsheet. Files are compressed. |
| Availability Notes |
The datafile is on four 3 1/2 inch DOS diskettes, 1.44M high density. File format: ASCII text. Documentation included; may be ordered separately as PB94-180494. |
| NTIS Title Notes |
Data file. |
| Category Codes |
68A#; 85H; 43F; 91A |
| NTIS Prices |
CP D03 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
427631173 |
| Origin |
NTIS |
| Type |
CAT |
