Emissions and Fuel Efficiency Testing

The Air Quality Program performs emissions and fuel consumption testing of a broad range of on-road and off-road vehicles using state-of-the-art testing equipment and facilities.

The Air Quality Program performs emissions and fuel consumption testing of a broad range of on-road and off-road vehicles using state-of-the-art testing equipment and facilities. Equipment includes portable emissions measurement systems (PEMS), filter sampling dilution systems, and ambient monitors. Testing under environmentally controlled conditions is performed in TTI’s newly-opened Environmental and Emissions Research Facility. Real-world testing is performed at various test tracks owned by TTI. Specific focus areas of this research include: 

  • testing of emissions control technologies
  • testing of fuel efficiency improvement technologies
  • real-world, in-use PEMS testing on a broad range of vehicle types
  • filter sample collection and analysis for air toxics and particulate matter
  • fuel efficiency testing including procedures such as the SAE J1321 protocol
  • testing in a drive-in environmental chamber
  • developing drive cycles to simulate real-world driving conditions
  • testing on test tracks to simulate real-world driving conditions

Selected Projects