In-Service Conformity test on a Volvo FH420 LNG-diesel dual fuel truck with a Euro VI step-C certified engine
report
In the framework on the Netherlands in-service testing program for heavy-duty vehicles of the Ministry of Infrastructure and Water management TNO has conducted three on-road emission tests with PEMS on a N3 Euro VI Step-C truck conform Regulation EU No. 582/2011 [1] as amended by EU No. 2016/1718 [2], to verify that the vehicle meets the requirements concerning the applicable heavy duty vehicle in-service conformity emission regulations. • For the three valid tests the 90% cumulative exhaust emissions conformity factors for NOx, THC and CO are below the maximum allowed value of 1.5. • The 90% cumulative NOx conformity factors for test 1,2 and 3, determined according the work based method are 0.50, 0.33 and 0.32, and on average 0.38.
• The 90% cumulative NOx conformity factors for test 1,2 and 3, determined according the CO2 based method are 0.52, 0.33 and 0.33, and on average 0.39. Considering the demonstrated validity of the measurements, the results of the measurements are interpreted as plausible. During testing, no anomalies were encountered. The CF results show that for both work- and CO2 based window methods the limit of 1.5 was not exceeded for components NOx, CO and THC(with application of the emission limits set for PI engines according to (EU) No.133/2014[3]). The CF for PN has not yet been determined. This means the CF for PN are purely indicative and do not account for pass/fail. Notable is the strong decline in CF for PN during the course of the test program. It is unknown if a regeneration of the particulate filter took place before the start of the first test.
• The 90% cumulative NOx conformity factors for test 1,2 and 3, determined according the CO2 based method are 0.52, 0.33 and 0.33, and on average 0.39. Considering the demonstrated validity of the measurements, the results of the measurements are interpreted as plausible. During testing, no anomalies were encountered. The CF results show that for both work- and CO2 based window methods the limit of 1.5 was not exceeded for components NOx, CO and THC(with application of the emission limits set for PI engines according to (EU) No.133/2014[3]). The CF for PN has not yet been determined. This means the CF for PN are purely indicative and do not account for pass/fail. Notable is the strong decline in CF for PN during the course of the test program. It is unknown if a regeneration of the particulate filter took place before the start of the first test.
Topics
TNO Identifier
865303
Publisher
TNO
Collation
97 p.
Place of publication
Helmond