Demonstration of Tier 2 Emission Levels for Heavy Light-Duty Trucks

2000-01-1957

06/19/2000

Event
CEC/SAE Spring Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
The U.S. Environmental Protection Agency initiated a program to demonstrate feasibility of the Tier 2 emissions standards for the largest vehicles regulated under the new standards. Advanced emission control systems were developed and evaluated using a large 1999 sport utility vehicle and a large 1999 light-duty pickup truck. The trucks were originally certified to California LEV-I or Federal Tier 1 emission standards. Advanced, high-cell density, ceramic and metallic substrate three-way catalysts were thermally aged to the equivalent of 80,000 km (50,000 miles) and integrated into the exhaust systems for evaluation. Low mass, thermally insulated exhaust system components were fabricated and evaluated. Engine control strategies were modified via ROM-emulation and powertrain control module (PCM) flash reprogramming. Both of the tested trucks demonstrated FTP emissions at levels below 2004 U.S Federal Tier 2 emissions standards.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-1957
Pages
17
Citation
McDonald, J., and Jones, L., "Demonstration of Tier 2 Emission Levels for Heavy Light-Duty Trucks," SAE Technical Paper 2000-01-1957, 2000, https://doi.org/10.4271/2000-01-1957.
Additional Details
Publisher
Published
Jun 19, 2000
Product Code
2000-01-1957
Content Type
Technical Paper
Language
English