[blackwasp]

The European Union has implemented on-road emission testing of vehicles from today (September 1, 2017) for all new cars on sale. The Real Driving Emissions test procedure (RDE), as the tests are known, have been introduced to reduce the discrepancies between the current laboratory tests and actual on-road emissions from vehicles.

The new rules will be applicable to all new car models from September 2017. Manufacturers will have to make existing models compliant with the tests between September 2018 and January 2019.

This new procedure is an aftermath of the Volkswagen emissions scandal of 2015. It will use portable emission measuring systems (PEMS) attached to the vehicles. There have been no changes made to the emission limits under Euro 6 for light vehicles and Euro VI for heavy vehicles. However, vehicles with a gap in laboratory testing and RDE will not be allowed on the roads.

The European Commission claims that despite the introduction of stricter emission norms since 1991 (Euro norms), the resultant reduction in exhaust particulate matter (pm) and other pollutants has been lesser than expected. This is due to the difference between laboratory and real-life tests. It is particularly higher in the case of diesel vehicles.

Highlights of the changes. Note that current test is the New European Driving Cycle (NEDC) while the newer one is the Worldwide Harmonised Light Vehicle Test Procedure (WLTP):


An example of portable emission measuring system:


Link to Team-BHP News

[srishiva]

Welcome move. I would like to see the results of the tests at the earliest. Would be surprising if any diesel vehicles pass these tests.

[abhishek46]

What an excellent way to test emissions!

The Indian Authorities should immediately replicate the same in India as well. It has been reported in other threads, how actual emissions are much more than the 'Lab' Tests.

This kind of test setup was the need of the hour.

[volkman10]

All Volvo Cars Now Tested Under WLTP - become one of the first carmakers to have its entire model range tested under the new procedure.

The WLTP test is a bench procedure which comprises tests for vehicles conducted at four different speeds. During the testing, each car must execute a series of maneuvers, including stop, braking, and acceleration.

The test seeks to find relevant data pertaining to fuel consumption, CO2 emissions, pollutant emissions, or energy consumption values for alternative powertrains.

Link

[volkman10]

Volkswagen in trouble due to emissions but for a different reason now

Half of VW models in Germany not compliant with new pollution standard

Volkswagen’s top-selling Golf model is among the vehicles still waiting to be cleared by authorities.

German carmaker Volkswagen said only half of its VW branded passenger car models in Germany are compliant with a new pollution standard

The new tests are more cumbersome and take two to three times longer than in the past, even limited edition models need to be tested separately

Nonetheless delays will cause profitability of the brand to drop to around 2 percent in the third quarter, from 5.5 percent in the second quarter

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