On-road NOx and CO2 investigations of Euro 5 Light commercial vehicles
report
NOx emissions of vehicles contribute to the ambient NO2 concentration. To gain insight into those NOx emissions, TNO, commissioned by the Dutch Ministry of Infrastructure and the Environment, regularly performs real-world emission measurements on vehicles. The measurements mainly focus on vehicles with diesel engines as their real-world NOx emissions are higher than those of petrol engines.
This report describes real-world emission test results of ten Euro 5 compliant diesel commercial N1 class III vehicles. The vehicles were equipped with TNO’s Smart Emission Measurement System and their emission performance was subsequently screened while driving representative routes on the public road. One vehicle was tested in greater detail on a chassis dynamometer in a test laboratory.
The tested vehicles showed NOx emission levels that are five to six times higher than the type approval emission limit vale of 280 mg/km: Their average NOx emissions ranged from 1421 to 1670 mg/km. These measurement results confirm findings in another study of another European research institute , IIASA from Austria, which found comparable real-world NOx emissions of 1300 mg/km in a Remote Emission Sensing experiment.
This report describes real-world emission test results of ten Euro 5 compliant diesel commercial N1 class III vehicles. The vehicles were equipped with TNO’s Smart Emission Measurement System and their emission performance was subsequently screened while driving representative routes on the public road. One vehicle was tested in greater detail on a chassis dynamometer in a test laboratory.
The tested vehicles showed NOx emission levels that are five to six times higher than the type approval emission limit vale of 280 mg/km: Their average NOx emissions ranged from 1421 to 1670 mg/km. These measurement results confirm findings in another study of another European research institute , IIASA from Austria, which found comparable real-world NOx emissions of 1300 mg/km in a Remote Emission Sensing experiment.
TNO Identifier
528311
Publisher
TNO
Collation
26 p.
Place of publication
Delft