Title
Emission performance of a diesel plug-in hybrid vehicle
Author
Kadijk, G.
Buskermolen, E.G.
Spreen, J.S.
Publication year
2015
Abstract
NOx emissions of diesel plug-in hybrid passenger car considerably higher than NOx emissions of petrol plug-in hybrids On behalf of the Dutch Ministry of Infrastructure and the Environment TNO conducted a study on the real-world emission performance of a Euro 5 diesel plug-in hybrid diesel passenger car. The study reveals that NOx emissions of the tested vehicle on average are significantly higher than the NOx emissions of plug-in hybrid petrol cars and conventional petrol cars. The tested plug-in hybrid diesel vehicle has a real-world NOx emission that ranges from 400 to 600 mg/km, while a plug-in hybrid petrol car emits on average 20 mg of NOx per kilometer. The real-world NOx emissions of modern diesel engine are up to 30 times higher than those of petrol engines. This is mainly caused by the fact that NOx emissions of Euro 5 diesel engines are significantly higher under real-world conditions than would be expected on the basis of the Euro 5 type approval standard. Moreover, at 180 mg/km the Euro 5 NOx limit value for diesels is less stringent than that for petrols, which lies at 60 mg/km. As a consequence, plug-in hybrids fitted with a diesel engine are less environmentally-friendly than plug-in hybrids with a petrol engine or conventional petrol cars.
Subject
ELSS - Earth, Life and Social Sciences
Urban Mobility & Environment
Urbanisation
Mobility & Logistics
Traffic
STL - Sustainable Transport & Logistics
To reference this document use:
http://resolver.tudelft.nl/uuid:af7661ae-fb5a-4b45-95fa-0d809bb6b042
TNO identifier
526263
Report number
TNO 2015 R10858
Publisher
TNO, Delft
Document type
report