Off-Cycle Exhaust Emissions from Modern Passenger Cars with Properly-Functioning Emissions Controls University of Michigan

Format:

Book

Conference/Event

Author/Creator:

Goodwin, R. W. (Robert W.), author.

Conference Name:

International Congress & Exposition (1996-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

Real-world tailpipe emissions from properly-functioning, model year 1991-94 conventional gasoline-fueled cars associated with vehicle operations not emphasized in the FTP are analyzed. Tailpipe emissions are expressed as the product of three factors: fuel rate, engine-out emissions index, and catalyst pass fraction, which are modeled using empirical data from the FTP-Revision Project and applied to in-use driving survey data to estimate real-world emissions. Average tailpipe emissions due to fuel enrichment in warmed-up vehicles are estimated to be 8 g/mile for CO, and 0.3 g/mile for HC. For NOx, the contribution due to incremental loads on the engine (id est air conditioner, grade, high acceleration, and high speed) that are not accounted for in the FTP but are encountered in real-world driving are estimated to be roughly 0.3 g/mile

Notes:

Vendor supplied data

Publisher Number:

960064

Access Restriction:

Restricted for use by site license