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Global overview of on-board diagnostic (OBD) systems for heavy-duty vehicles

On-board diagnostic (OBD) systems monitor the performance of engine and aftertreatment components, including those responsible for controlling emissions. The OBD system is designed to help ensure...
Published 2015.02.09: Publication

Which vehicle emissions test cycle is most demanding?

After we published our new test cycle conversion factors, a question came up: which of the test cycles is the most demanding, in terms of its impacts on fuel efficiency or CO2 emissions, and how much...Even though it’s a simple enough question, it has no simple answer, since the new conversion factors vary with vehicle efficiency and are different for gasoline and diesel engines. However, in our...
Published 2015.02.06: Blog Post

[Pressemitteilung] Reale Emissionen moderner Diesel-Autos sieben Mal höher als gesetzlich erlaubt

Die realen Stickoxidemissionen moderner Diesel-Pkw liegen durchschnittlich sieben Mal höher als laut der seit September 2014 geltenden Abgasnorm Euro 6 erlaubt. Zu dieser Schlussfolgerung gelangt...
Published 2014.10.11: News

A trend that can’t continue: The gap between official and real CO2 reductions from Europe’s passenger car fleet keeps growing

Our report last year documenting the worsening gap between official, test-based CO2 emissions from Europe’s passenger cars and what drivers actually experience on the road received a lot of attention...We've just released an update to our study of the discrepancy between offiical and real-world CO2 emissions from passenger cars in the EU. The bad news: the gap continues to increase, and at an...
Published 2014.09.28: Blog Post

The 4th Sino-US Workshop on Motor Vehicle Pollution Prevention and Control

On June 9-10, 2014, the International Council on Clean Transportation (ICCT) and the Vehicle Emission Control Center of the Ministry of Environmental Protection (VECC-MEP) co-sponsored the 4th Sino-...
Published 2014.06.30: Event

To fine or not to fine? Implementing standards

On May 7, China’s Ministry of Industry and Information Technology (MIIT) released its proposed Enforcement Rule for New Passenger Car Corporate-Average Fuel Consumption Standard for public comment....China’s Ministry of Industry and Information Technology (MIIT) has released its proposed Enforcement Rule for New Passenger Car Corporate-Average Fuel Consumption Standard for public comment. One...
Published 2014.06.25: Blog Post

ICCT对《加强乘用车企业平均燃料消耗量管理》征求意见稿的评论

工业和信息化部于5月7日在其网站上发布了《关于加强乘用车企业平均燃料消耗量管理的通知》(下称《监管办法》提案)并向社会公开征集意见。我们认为《监管办法》是整个乘用车第三阶段(以及以后标准)体系的关键环节,没有监管办法的标准不能称之为完整的标准,对车队油耗水平的改善的效果具有很大不确定性。纵观欧美等发达国家的车辆能效或温室气体排放标准体系,都是将标准值、核算体系、灵活达标机制和监管、...工业和信息化部于5月7日在其网站上发布了《关于加强乘用车企业平均燃料消耗量管理的通知》并向社会公开征集意见。我们认为《监管办法》是整个乘用车第三阶段(以及以后标准)体系的关键环节,没有监管办法的标准不能称之为完整的标准,对车队油耗水平的改善的效果具有很大不确定性。
Published 2014.06.25: Blog Post

China Phase 3 new passenger car fuel consumption: Proposed implementation rule

China’s Ministry of Industry and Information Technology (MIIT) released its proposed implementation rule for the China Phase 3 new passenger car fuel consumption standard (GB 27999-2011) on May 7....
Published 2014.06.20: Publication

Bought a tiger, got a Hello Kitty? How to fix vehicle fuel economy fraud in China

China’s most powerful government-controlled television broadcaster, CCTV, is famous for sensational stories exposing product-quality issues. Its March 15 show made auto industry PR specialists in...China’s powerful government-controlled broadcaster, CCTV, not long ago did a show on vehicle fuel economy fraud, and that has made auto industry PR specialists uneasy. Here's how to calm their poor...
Published 2014.05.30: Blog Post

भारत में वाहनीय प्रदूषण को नियन्त्रण में लाना अनिवार्य

प्रेस विज्ञाप्ति, 7 नवम्बर 2013   जल्द से जल्द अतिनिम्न सल्फर ईंधनों और भारत प्रक्रम (बी.एस.) VI वाहनीय उत्सर्जन मानकों को लागू करने से वायु प्रदूषण प्रभावशाली तरीके से कम होगा, जिससे जनस्वास्थ्य को...
Published 2013.11.08: News

India's vehicle emissions control program

Rising transportation activity—the ever-increasing demand to move more people and goods further and faster—is both a cause and an effect of India’s rapid economic growth. As necessary as the increase...
Published 2013.11.05: Publication

On-road vehicle emissions remote sensing

The ICCT commissioned this guidance document to inform policy makers of good practices in vehicle remote sensing (RS). Its purpose is to educate policy makers about RS applications, reflect upon...
Published 2013.10.11: Publication

Vehicle emissions compliance for LDVs in India

Compliance and enforcement programs aim to ensure that, even after a period of use, vehicle emissions of criteria pollutants (primarily particulates, nitrogen oxides, hydrocarbons, and carbon...
Published 2013.08.21: Publication

Cleaning up a General Mess

A couple of weeks ago, news came out in India that General Motors’ Tavera SUVs had not been meeting emission standards since 2005. It seems that certain GM employees kept special “lower emission”...GM has had to recall more than 100,000 of its Tavera SUVs, suspend production of other models, and fire a raft of executives in the U.S. and India. A simple in-use compliance testing program could...
Published 2013.08.16: Blog Post

Cleaning up the diesel vehicles already on the road

Older diesel vehicles are prime culprits when it comes to both urban air pollution and climate change. Although they usually make up only a small percentage of all the vehicles in a region, they...Old diesel vehicles are prime culprits when it comes to both urban air pollution and climate change. Although they usually make up only a small percentage of all the vehicles in a region, they can...
Published 2013.08.02: Blog Post

Best practices in emission control of in-use heavy-duty diesel vehicles

This report summarizes policy approaches to controlling in-use emissions from heavy-duty vehicles (HDVs), including freight trucks, buses, municipal government and other service fleets. HDVs, while...
Published 2013.08.02: Publication

EU consumer organizations asking for more realistic vehicle testing

CO2 emission values for type approval of new cars are determined under laboratory conditions. But real-world driving cannot be perfectly simulated in the laboratory; for example, in laboratory...BEUC, FIA, and ANEC are demanding that the European Commission address the growing gap between type-approval and real-world CO2 emissions and fuel consumption.
Published 2012.12.14: Blog Post

Complexifying the report on the Fusion and C-Max hybrids a little

First Hyundai and Kia, now Ford? Last week Consumer Reports questioned the official estimates of fuel economy for Ford's new Fusion and C-Max hybrids, reporting that in their tests "the Fusion Hybrid...Hyundai, Kia—now Ford? Maybe, but some additional aspects to this situation with the Fusion and C-Max hybrids are worth calling to light.
Published 2012.12.11: Blog Post

Trust (or don't), but verify

The recent disclosure that Hyundai and Kia had overstated fuel economy for many vehicles illustrates why and how compliance and enforcement measures are important parts of vehicle emissions...The recent disclosure that Hyundai and Kia had overstated fuel economy illustrates why and how compliance and enforcement measures are important, and why we should worry about that.
Published 2012.11.08: Blog Post

Laboratory versus real world: Discrepancies in NOx emissions in the EU

Last week we published the new edition of our pocketbook of European Vehicle Market Statistics. For those interested in road vehicles and their impact on our climate and air quality, the pocketbook...NOx emissions from gasoline cars in the EU have decreased significantly since 2000. Not so for diesel cars, and the increasing numbers of diesel vehicles is intensifying the resulting health problems...
Published 2012.11.07: Blog Post

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