Topics / In-use NOx emissions

Most Recent

In September, China’s Ministry of Environmental Protection issued the first national standard for portable emission measurement system (PEMS) testing of heavy-duty vehicles (HDVs). This regulation is a supplement to all existing requirements under the China V standard, and it requires additional on-road PEMS testing for new and in-use China V HDVs.

Compares official laboratory-test and on-road nitrogen oxide (NOx) emissions for 541 Euro 5 and Euro 6 diesel passenger cars, representing 145 of the most popular European models.

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.

2016.07.15
On June 28, more than 9 months after the "Dieselgate" story broke, Volkswagen agreed to a $14
Blog Post
2016.06.15
A little while ago I blogged about the widespread practice by automakers in the EU of reducing nitrogen oxide (NOx) emissio
Blog Post
2016.06.04

A lunch briefing on vehicle emissions testing schemes in the EU and U.S., with discussion of potential reforms in the EU.

Event
2016.05.12
Ever since the VW defeat device scandal broke last September, the big question has been: Are other manufacturers also using defeat devices?
Blog Post
2016.04.28
Conclusively determining whether or not a vehicle has a defeat device to circumvent emissions tests is difficult. Really difficult.
Blog Post
2016.04.28
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 followed suit last week.
Blog Post
2016.04.25
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 laboratory and on-road vehicle tests in ord
Blog Post
2016.03.22

Reviews provisions of the U.S. and EU regulations that define and prohibit defeat devices, as well as automakers' public statements in the aftermath of VW's admission that it used such defeat devices, as context for evaluating reform proposals.

Publication: Briefing
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
2015.10.01

Proposes a rapid, comprehensive policy response not only to deal with defeat devices but also to identify vehicle models with high real-world emissions relative to test-cycle performance and improve current compliance and enforcement programs.

Publication: Briefing

Pages