2021
DOI: 10.3390/app11125429
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Real Driving Emission Calibration—Review of Current Validation Methods against the Background of Future Emission Legislation

Abstract: Reducing air pollution caused by emissions from road traffic, especially in urban areas, is an important goal of legislators and the automotive industry. The introduction of so-called “Real Driving Emission” (RDE) tests for the homologation of vehicles with internal combustion engines according to the EU6d legislation was a fundamental milestone for vehicle and powertrain development. Due to the introduction of non-reproducible on-road emission tests with “Portable Emission Measurement Systems” (PEMS) in addit… Show more

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Cited by 20 publications
(16 citation statements)
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“…Pollutant emissions are mainly nitrogen-based, with nitrogen oxide (NO X ) as the main raw emission. Potential secondary emissions produced in the exhaust aftertreatment system (EATS) are ammonia (NH 3 ) and nitrous oxide (N 2 O), which, with the introduction of the EU7 legislation, are also expected to receive limit values that must be met in the real driving emissions type approval tests on the road [23][24][25]. Carbon-based pollutant emissions (carbon monoxide and hydrocarbons) can only result from lubrication oil consumption and are expected to be on a very low level.…”
Section: Introductionmentioning
confidence: 99%
“…Pollutant emissions are mainly nitrogen-based, with nitrogen oxide (NO X ) as the main raw emission. Potential secondary emissions produced in the exhaust aftertreatment system (EATS) are ammonia (NH 3 ) and nitrous oxide (N 2 O), which, with the introduction of the EU7 legislation, are also expected to receive limit values that must be met in the real driving emissions type approval tests on the road [23][24][25]. Carbon-based pollutant emissions (carbon monoxide and hydrocarbons) can only result from lubrication oil consumption and are expected to be on a very low level.…”
Section: Introductionmentioning
confidence: 99%
“…The exact scope of the planned adjustments in the transition from Euro 6 to Euro 7 is not yet known in detail. However, it is already clear that in addition to improved exhaust after-treatment systems and advanced measurement systems for the accurate measurement of very low concentrations of already limited and other new pollutants, extended or even new development structures and procedures need to be provided in some areas [37,38].…”
Section: Real Driving Emissionmentioning
confidence: 99%
“…Requirements for the distance shares for urban, rural, motorway as well as the geodetic profile of the traveled road with respect to the positive cumulated elevation gain as well as the absolute difference between the start and end of the trip define the general conditions of the route [4]. Looking forward to planned adjustments by the EU7 standard, potential restrictions and ranges for these limitations can be omitted or extended [16][17][18][19].…”
Section: Challenges Posed By Rdementioning
confidence: 99%
“…In addition, increasing vehicle variants with different powertrain modifications lead to an exponential growth of test cases to be considered [33]. As demonstrated on the right chart in Figure 1, this puts challenges onto the available test resources [16]. The introduction of new test facilities is required to keep up with the exponential growth in tests to be carried out.…”
Section: Challenges Posed By Rdementioning
confidence: 99%