Search Results

CO2 emissions from new passenger cars in the EU: Car manufacturers’ performance in 2015

This briefing paper summarizes and analyzes preliminary data for 2015 recently released by the European Environment Agency (EEA) on CO2 emissions from new passenger cars in the EU. The EEA data show...
Published 2016.06.22: Publication

Assessing real-world CO2 emissions using simulation and PEMS data

The Real Driving Emissions (RDE) testing procedure will introduce on-road testing as well as not-to-exceed emission limits for new passenger cars in Europe. However, for the time being, these on-road...
Published 2016.06.21: 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

On-board diagnostic (OBD) checks for inspection and maintenance in India

Poor air quality in India threatens the health of millions of people, and the country’s inspection and maintenance program, called Pollution Under Control (PUC), is struggling with outdated test...
Published 2016.06.07: Publication

Action plan for establishing ship emission control zones in China

On 4 December 2015, China’s Ministry of Transport (MOT) released an action plan for implementing Ship Emission Control Zones (ECZs) in three key coastal regions: the Yangtze River Delta Region (YRD...
Published 2016.05.27: Publication

Official vs. real-world road-load parameters in EU vehicle efficiency testing

On average, real-world fuel consumption and CO2 emissions of new European passenger cars exceeded official vehicle type-approval values by approximately 40 percent in 2014. This paper shows that...
Published 2016.05.09: Publication

Proposed new type-approval system for motor vehicles in the European Union

On 27 January 2016, the European Commission (EC) put forward a proposal that, if approved by the European Parliament and the Council of the European Union, would make fundamental and far-reaching...
Published 2016.04.29: Publication

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

First look: Results of post-VW diesel vehicle testing in France, UK

On April 7, the French government released initial results of the diesel emissions screening campaign it conducted in the wake of the revelations about VW's use of defeat devices. The UK and Germany...Further summary of initial results of diesel emissions screening tests being conducted in Europe in the wake of last year's revelations about VW's use of defeat devices.
Published 2016.04.28: Blog Post

First look: Results of the German transport ministry's post-VW vehicle testing

In September 2015, shortly after it became known that Volkswagen applied illegal defeat devices in some of its diesel vehicles, the German Ministry for Transport (BMVI) commissioned a series of...Germany, the UK, and France last week released results of testing they commenced after VW admitted to using defeat devices to circumvent emissions tests. The situation seems even worse than expected...
Published 2016.04.25: 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

Real-world fuel consumption of popular European passenger car models

Official fuel consumption values for new passenger cars in Europe are increasingly unrepresentative of real-world performance. The divergence between official and real-world fuel consumption more...
Published 2016.01.14: 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 future of vehicle emissions testing and compliance

A growing body of evidence indicates that one of the reasons for a rapidly growing discrepancy between official and real-world fuel consumption and emission values of new passenger cars is...
Published 2015.11.23: Publication

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

New revelations of Clean Air Act violations by Volkswagen [press statement]

The International Council on Clean Transportation once again commends the U.S. Environmental Protection Agency and the California Air Resources Board for their rigorous, effective work to enforce the...
Published 2015.11.03: News

Brazil is not ready for diesel cars

The Portuguese version of this blog was developed by Instituto de Energia e Meio Ambiente (IEMA). Sales of diesel passenger cars and commercial vehicles with capacity inferior to 1,000 kg have been...Brazil should hold the line and continue to ban sales of diesel passenger cars.
Published 2015.09.28: Blog Post

Testing the dirty diesels too

The new head of Secretariat of the Environment and Natural Resources (SEMARNAT), Rafeal Pacchiano Alamán, has announced that Mexico will undertake a real-world, in-use testing program for diesel...Mexico's newly announced real-world testing program for diesel vehicles is a great step. Unfortunately, we already know they won’t be clean. So there are other steps to take.
Published 2015.09.28: Blog Post

EPA's notice of violation of the Clean Air Act to Volkswagen [press statement]

Investigation into "defeat device" allegedly used to circumvent emissions tests began with ICCT-sponsored research on in-use emissions from diesel passenger cars Highlights the global need for...
Published 2015.09.18: News

Vehicle emissions testing in the EU: Why we are still struggling with the dead hand of the past—and what the future is likely to bring

The Committee on Climate Change (CCC) was established in 2008 to advise the British government on emissions targets and report to Parliament on progress made in reducing greenhouse gas emissions and...Manufacturers effectively exploit loopholes in the vehicle CO2 emissions test procedure. The WLTP will help, but can't solve the problem entirely; we need in-use conformity and on-road testing in the...
Published 2015.09.09: Blog Post

Pages