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Market surveillance of vehicle emissions: Best-practice examples with respect to the European Commission's proposed type-approval framework regulation

On January 27, 2016, the European Commission (EC) proposed a new motor vehicle type-approval framework that will, if adopted, make fundamental and far-reaching changes to the existing Framework...
Published 2017.07.13: Publication

Fiat-Chrysler, Renault-Nissan . . . who might be next?

The news earlier this month that the U.S. EPA had issued a Notice of Violation to Fiat-Chrysler for failing to inform the agency of several software "devices" that alter the behavior of the emissions...The current investigations might not prove that Fiat-Chrysler or Renault-Nissan used defeat devices per se, but these recalls confirm that automakers can do more than just the minimum necessary to...
Published 2017.01.30: Blog Post

[Press release] New Real-Driving Emissions regulation: A great step forward—though not yet far enough to fully control toxic nitrogen oxide emissions

Real-world NOx emissions from new diesel cars could still exceed the Euro 6 emission limit of 80 mg/km by a factor of three or more, even after the new RDE regulation takes effect, according to...
Published 2017.01.12: News

Real-Driving Emissions test procedure for exhaust gas pollutant emissions of cars and light commercial vehicles in Europe

Two legislative packages are currently under development to complete implementation of the new real-driving emissions (RDE) test procedure for measuring vehicle emissions in Europe. The goal is to...
Published 2017.01.12: Publication

Impact of improved regulation of real-world NOx emissions from diesel passenger cars in the EU, 2015−2030

NOx emissions from diesel cars in the EU have remained high, largely due to a growing gap between emission certification limits of Euro 4 and Euro 5 standards (measured in laboratory testing) and “...
Published 2017.01.12: Publication

On-road testing of CO2 and exhaust emissions from Euro 6 passenger cars in the EU

In 2015, the ICCT commissioned Emissions Analytics, a commercial test house specializing in testing real-world fuel consumption and emissions, to perform on-road testing of Euro 6-regulated gasoline...
Published 2016.11.14: Publication

Strengthening the regulation of defeat devices in the European Union

Although the language in the U.S. and EU regulations on vehicle emissions testing prohibiting defeat devices, and defining exemptions or exceptions, is very similar, the regulations have been...
Published 2016.08.12: Publication

Opel's admissions of defeat device calibrations

A little while ago I blogged about the widespread practice by automakers in the EU of reducing nitrogen oxide (NOx) emission controls at ambient temperatures below 10 °C–17 °C and after a hot restart...Opel admits to reducing vehicle emission controls based on conditions other than ambient temperature or restart. Opel says its “engines are in compliance” in Europe. But, once again, they would not...
Published 2016.06.15: Blog Post

The emissions test defeat device problem in Europe is not about VW

Ever since the VW defeat device scandal broke last September, the big question has been: Are other manufacturers also using defeat devices? Immediately following the first VW revelations, the French...The methods used by other manufacturers to tell when a vehicle is not on a test cycle may differ from VW's, but they are still improperly reducing the effectiveness of emission controls in the real...
Published 2016.05.12: Blog Post

Defeat device testing in the EU: So far, not so good

Conclusively determining whether or not a vehicle has a defeat device to circumvent emissions tests is difficult. Really difficult. That is because a defeat device, as defined in EU regulation, is:...The post-VW vehicle testing by Germany, the UK, and France suggest that defeat devices are being employed in Europe that have yet to be detected. But further testing is needed if the goal is to...
Published 2016.04.28: Blog Post

Defeat devices under the U.S. and EU passenger vehicle emissions testing regulations

The paper aims to illuminate a paradox: Volkswagen and other automakers have asserted that software managing the emissions control systems on some of their vehicles, which they acknowledge either is...
Published 2016.03.22: Publication

The European Real-Driving Emissions Regulation

Beginning in 2017, the European Union’s emissions type-approval procedure for passenger cars will include a new Real-Driving Emissions (RDE) test conducted using on-board portable emissions...
Published 2015.12.28: Publication

The future of vehicle emissions testing in Europe (and beyond)

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. We showed for the first...To solve the problem underlying the growing gap between certification-test and in-use CO2 and NOx emissions, we will have to go beyond just introducing a new test procedure.
Published 2015.11.23: Blog Post

The miseducation of the diesel car

I recently read an open letter in the Corriere della Sera by a VW engineer working on engine development and emissions (that’s what I call a hot seat!). The letter contains some pretty remarkable...The preliminary agreement on the EU's Real-Driving Emissions regulation is a missed opportunity to address the air-quality problem by forcing the technological adjustments required to bring real...
Published 2015.11.04: Blog Post

Policy solutions to reduce vehicle exhaust emissions under real-world driving conditions

Policymakers worldwide are looking for ways to address the challenge of controlling real-world emissions brought to forefront by the Volkswagen case. In this position brief, we propose a rapid and...
Published 2015.10.01: Publication