Topics / Worldwide harmonized light vehicles test procedure

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A report investigating the real-world emissions of four Euro 6 passenger cars—one gasoline and three diesel vehicles with different aftertreatment technologies, tested under variable conditions. The investigation was conducted by the Laboratory of Applied Thermodynamics, of the Aristotle University of Thessaloniki, and its spin-off company, Emisia.

Outlines the current procedure for the determination of fuel consumption, carbon dioxide (CO2) emissions, electric energy consumption, and electric range, specifically for PHEVs in Europe, highlights the most relevant changes expected with the introduction of the new Worldwide Harmonized Light Vehicles Test Procedure (WLTP) and discusses key differences between the EU and U.S. test procedures for PHEVs.

Results of a project by the International Centre of Automotive Technology (ICAT), in India, to conduct laboratory and on-road testing of three in-use vehicles, using a portable emissions measurement system, over a variety of drive cycles and routes.

2017.08.29

A report investigating the real-world emissions of four Euro 6 passenger cars—one gasoline and three diesel vehicles with different aftertreatment technologies, tested under variable conditions. The investigation was conducted by the Laboratory of Applied Thermodynamics, of the Aristotle University of Thessaloniki, and its spin-off company, Emisia.

Publication: Consultant report
2017.07.28

Outlines the current procedure for the determination of fuel consumption, carbon dioxide (CO2) emissions, electric energy consumption, and electric range, specifically for PHEVs in Europe, highlights the most relevant changes expected with the introduction of the new Worldwide Harmonized Light Vehicles Test Procedure (WLTP) and discusses key differences between the EU and U.S. test procedures for PHEVs.

Publication: Briefing
2017.06.26

Results of a project by the International Centre of Automotive Technology (ICAT), in India, to conduct laboratory and on-road testing of three in-use vehicles, using a portable emissions measurement system, over a variety of drive cycles and routes.

Publication: Consultant report
2016.11.14
In late 2015, in the immediate aftermath of the revelations about Volkwagen's cheating on vehicle certification tests in the United States, we commissioned Emissions Analytics, a commercial tes
Blog Post
2016.05.09

Highlights the effects of disparities between real-world data and official road-load coefficients, used to set up vehicle type-approval test equipment, on fuel consumption and CO2 ratings for European passenger cars.

Publication: White paper
2015.11.23
At the ICCT we have been analyzing the growing gap between official and real-world vehicle fuel consumption and CO2 emissions of passenger cars in Europe for a few years now.
Blog Post
2015.11.23

Analyzes and compares new-vehicle type-approval procedures in the EU and U.S. with an eye toward demonstrating how best to align regulatory requirements, customer expectations, and environmental performance.

Publication: White paper
2014.10.30
Over the last few weeks, we published two major reports on the real-world emission behavior of passenger cars in Europe.
Blog Post
2014.10.29

Identifies and quantifies impacts on type-approval values of the EU's anticipated transition from the NEDC to the WLTP. Notably, the effects of the new driving cycle and the new definition of vehicle test masses result in a target of 100 g CO2/km for 2020.

Publication: Working paper
2013.11.22

On November 14, the formal text for the WLTP was adopted. If confirmed by the World Forum for Harmonization of Vehicles Regulations, the WLTP will be ready for implementation by individual countries.

Publication: Policy update

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