Interlaboratory Cross-Check of Heavy-Duty Vehicle Chassis Dynamometers

2002-01-2879

10/21/2002

Event
SAE Powertrain & Fluid Systems Conference & Exhibition
Authors Abstract
Content
Six laboratories capable of chassis-testing heavy-duty vehicles participated in a crosscheck program designed to compare emissions results from a Ford L-9000. The single-axle vehicle was shipped to each laboratory and tested through a series of UDDS and steady-state cycles. The resulting data were compared statistically using reproducibility and repeatability analyses. Although one lab produced some results that significantly differed from the other five, the remaining labs produced comparable results. TPM, CO and THC were the most variable while NOX and CO2 were most stable. Lab differences included atmospheric and environmental conditions, road-load curve application and drivers. Comparison of steady state and transient tests suggest that driver variability is not a major factor.
Meta TagsDetails
DOI
https://doi.org/10.4271/2002-01-2879
Pages
11
Citation
Traver, M., Tennant, C., McDaniel, T., McConnell, S. et al., "Interlaboratory Cross-Check of Heavy-Duty Vehicle Chassis Dynamometers," SAE Technical Paper 2002-01-2879, 2002, https://doi.org/10.4271/2002-01-2879.
Additional Details
Publisher
Published
Oct 21, 2002
Product Code
2002-01-2879
Content Type
Technical Paper
Language
English