IVL Svenska Miljöinstitutet

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Real-driving emissions from diesel passenger cars measured by remote sensing and as compared with PEMS and chassis dynamometer measurements - CONOX Task 2 report
IVL Svenska Miljöinstitutet.
2018 (Engelska)Rapport (Övrigt vetenskapligt)
Abstract [en]

In this study more than 200,000 emission data records for diesel passenger cars from remote sensing measurements carried out in Spain, Sweden, Switzerland and United Kingdom 2011-2017, were pooled to analyze particularly the real-world NOX emission performance of Euro 5 and Euro 6 cars.

The results show that average NOX emissions for diesel cars (by Euro class, make, engine family) as measured by remote sensing agree well with on-board emission (PEMS) measurements. Thus, remote sensing has proven a powerful tool for market surveillance and for complementing conventional real-world emission test methods.

The study shows that real-world NOX emissions from diesel cars remain virtually unchanged from Euro 1 to Euro 5, meaning that in real-world driving the average European diesel Euro 5 car emits 5-6 times more NOX in excess of the standard. Euro 6 diesel cars emit on average about half as much NOx as Euro 5, still Euro 6 emits on average about 5 times more NOx in excess of the standard. Ambient temperature has a strong effect on the emissions.

The data also demonstrates that the introduction of diesel particulate filters along with the Euro 5 emission standard has been very effective in reducing real-world PM emissions.

Abstract [sv]

Den här rapporten finns endast på engelska.

Ort, förlag, år, upplaga, sidor
IVL Svenska Miljöinstitutet, 2018.
Serie
C-rapport ; C294
Identifikatorer
URN: urn:nbn:se:ivl:diva-189OAI: oai:DiVA.org:ivl-189DiVA, id: diva2:1549608
Tillgänglig från: 2021-05-05 Skapad: 2021-05-05Bibliografiskt granskad

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