Refinement of the Legislative Test Cell Conditions Based on Local Real World Ambient Condition

Paper #:
  • 2017-01-0991

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0991
Citation:
Pathak, S., Singh, Y., sood, V., and Channiwala, S., "Refinement of the Legislative Test Cell Conditions Based on Local Real World Ambient Condition," SAE Technical Paper 2017-01-0991, 2017, doi:10.4271/2017-01-0991.
Pages:
12
Abstract:
Vehicles are tested in controlled and relatively narrow laboratory conditions to determine their type approval emission values and reference fuel consumption. Some studies have shown that real world driving emissions are much higher as compared to laboratory measurements. The difference was caused by two important factors, i.e. ambient conditions (temperature and altitude) and actual real-world driving cycles. For this reason, the European Commission had constituted a working group which developed a complementary Real-Driving Emissions (RDE) test procedure using the Portable Emissions Measurement Systems (PEMS). RDE test will verify gaseous pollutant and particle number emissions during a wide range of normal operating conditions on the road. In RDE test specific boundary conditions of the temperatures, classified as moderate (0 ≤Tamb < 30), Extended (low): -7 ≤Tamb < 0 and Extended (high): 30
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