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NPTI: New Periodic Emission Inspection to guarantee PN Emission Stability of all modern vehicles

Mayer, A.; Burtscher, H.; Lutz, T.; Hensel, V.

Periodic Technical Inspection of emission quality PTI was abandoned by most EU member states in 2014 following the EU-Directive 2014/45 which recommended to delegate emission quality to OBD. After Dieselgate this naïve dream was over and VERT proposed during the German Dieselgate Hearing Sept.2016 to re-introduce PTI for all vehicles with emission control by DPF and SCR. With the introduction of particulate filters on diesel as well as GDI engines, the measurement of particulate emissions during PTI or road-side checks however, became a nontrivial task. Opacity and smoke meters do not have sufficient sensitivity to identify particulate filter failures or tampering on new, low emission internal combustion engines. Recent studies conducted in the Netherlands, Switzerland and Belgium have shown that about 10% of passenger cars equipped with DPF have high PN emissions that could indicate a damaged or removed DPF. To address this problem, the VERT Association launched a New Periodic Technical Inspection (N-PTI) initiative to develop a simple, robust and tamper-proof method for checking the functionality of DPFs using particle number (PN) instruments. ... mehr

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Volltext §
DOI: 10.5445/IR/1000096846
Veröffentlicht am 25.07.2019
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Publikationstyp Vortrag
Publikationsdatum 16.05.2019
Sprache Englisch
Identifikator KITopen-ID: 1000096846
Veranstaltung 7th International Symposium on Ultrafine Particles, Air Quality and Climate (2019), Brüssel, Belgien, 15.05.2019 – 16.05.2019
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