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From NEDC to WLTP for Vehicles: The Impact on Fuel Efficiency Calculation and Algorithm Optimization

2022 International Conference on Data Analytics, Computing and Artificial Intelligence (ICDACAI), 2022
Dongchang Zhao, Rujie Yu
exaly   +2 more sources

WLTP Random Cycle Generator

2015 IEEE Vehicle Power and Propulsion Conference (VPPC), 2015
European light duty vehicle emission legislation is gradually shifting the focus from test procedures with merely static test cycles, towards procedures including Real Driving Emissions (RDE), as they are a mean to achieve the European (NOx) emission reduction target.
Kooijman, D.G.   +4 more
openaire   +2 more sources

NEDC - WLTP comparative testing

2016
In de aanloop naar de nieuwe typekeuringsprocedure voor het bepalen van de fabrieksopgave van de CO2-emissies, de WLTP (World Harmonised Light-duty Test Procedures), heeft TNO in opdracht van het ministerie van Infrastructuur en Milieu de voorstellen voor WLTP typekeuringsprocedures vergeleken met de bestaande NEDC typekeuringsprocedure.
Ligterink, Norbert E.   +2 more
openaire   +3 more sources

Correction algorithms for WLTP chassis dynamometer and coast-down testing [PDF]

open access: possible, 2015
The flexibilities allowed in the WLTP are necessary to allow efficient testing without having a lot of invalid tests. Nevertheless some of the flexibilities can influence the resulting fuel consumption to an extent which makes it worth considering the application of correction functions to compensate for deviations against the target values.
Ligterink, Norbert E.   +5 more
openaire   +2 more sources

The influence of wheel and tire aerodynamics in WLTP

2015
The geometric shape of passenger car wheels can have a large influence on the aerodynamic drag of a vehicle as it has been shown already in different publications. In combination, tire and rim cause approximately 25% of the overall drag. Until now, the challenge for aerodynamicists is to find the rim / tire combination with the best aerodynamic ...
Felix Wittmeier, Timo Kuthada
openaire   +1 more source

WLTP heizt die CO2-Debatte an

ATZ - Automobiltechnische Zeitschrift, 2014
Die Angaben zum Kraftstoffverbrauch nach den Vorgaben des Neuen Europaeischen Fahrzyklus (NEFZ) veraergern immer oefter die Autofahrer und die ersten Autohersteller stehen wegen des erheblichen Unterschieds zwischen Norm- und Realverbrauch vor Gericht.
openaire   +1 more source

Contribution of tires and wheels to the WLTP

2019
Starting in 1997, all fuel consumption and emission values in Europe were based on the so-called “New European Driving Cycle (NEDC)”. Although this cycle did not represent the typical vehicle-driver related fuel consumption values, it was very suitable for comparing cars and engines.
openaire   +1 more source

The challenges of WLTP emission regulations from the vehicle manufacturer’s point of view

2020
Sustainability is one of the basic principles of the Daimler AG corporate strategy and a benchmark for its success concerning the entire value chain - from suppliers to products. A central aspect of Mercedes-Benz Cars is the “path to zero-emission driving” that merges three paths leading to the future of mobility: the combination of very efficient high-
Roland Kemmler   +5 more
openaire   +1 more source

Impacts of WLTP Test Procedure on Fuel Consumption Estimation of Common Electrified Powertrains

SAE Technical Paper Series, 2019
<div class="section abstract"><div class="htmlview paragraph">The new European test procedure, called the worldwide harmonized light vehicle test procedure (WLTP), deviates in some details from the current NEDC-based test which will have an impact on the determination of the official EU fuel consumption values for the new vehicles.
Ali Solouk   +3 more
openaire   +1 more source

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