Correlation of I/M240 and FTP emissions for Alternative Motor Fuels Act test vehicles

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · SAE Special Publication

DOI:https://doi.org/10.4271/941901· OSTI ID:81261

Kelly, K J

The National Remewable Energy Laboratory (NREL) is managing a series of light duty vehicle chasis dynamometer chasis tests on alternative fuel vehicles for the US Department of Energy (DOE). This testing program is part of a larger demonstration of alternative fuel vehicles that was mandated by the Alternative Motor Fuels Act of 1988 (AMFA). In Phase I of the AMFA emissions test program (AMFA I) 18 vehicles were tested by three laboratories. All the vehicles tested were 1991 model year. In Phase II of the program (AMFA II), the number of vehicles was increased to nearly 300, including M85 Dodge Spirits, E85 Chevrolet Luminas, and compressed natural gas Dodge passenger vans. Phase II testing includes a Federal Test Procedure (FTP) test, followed by two of the EPA`s Inspection/Maintenance (I/M240) tests. It is concluded that the I/M240 test is not an appropriate comparison to the FTP. Further the I/M 240 test is not as reliable as the FTP in estimating the `real world` emissions of these relatively low emission vehicles. 7 refs., 10 figs., 8 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 81261
• Report Number(s): CONF-9410173--
• Journal Information: SAE Special Publication, Journal Name: SAE Special Publication Journal Issue: 1053; ISSN SAESA2
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CARBON MONOXIDE
EXHAUST GASES
FUEL CONSUMPTION
FUEL SUBSTITUTION
GASOLINE
HYDROCARBONS
INSPECTION
NITROGEN OXIDES
NUMERICAL DATA
TESTING
US DOE