Test Variability of Emission and Fuel Economy Measurements Using The 1975 Federal Test Procedure Environmental Protection Agency

Format:

Conference/Event

Author/Creator:

Paulsell, C. Don, author.

Conference Name:

International Automobile Engineering and Manufacturing Meeting (1974-10-21 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1974

Summary:

Several sets of repetitive test data using the 1975 Federal Test Procedure ('75 FTP) have been analyzed to establish the variability of each component measured during each phase of the test.The variability characteristics of four different emission control systems have been discussed and compared. The overall variabilities of the '75 FTP composite values have been assessed at ±6% for hydrocarbons and CO, ±3% for NOx, and ±1% for CO2.The extremely repeatable behavior of the CO2 emissions is utilized to calculate the fuel economy during the test. This calculation is discussed and some fuel economy results from repetitive tests are presented

Notes:

Vendor supplied data

Publisher Number:

741035

Access Restriction:

Restricted for use by site license