Font Size: 

The European Commission approved a so-called Real Driving Emission (RDE) test in response to the criticisms to the current driving cycle used at chassis dyno for homologation purpose (NEDC): it is considered outdated and misleading since air pollutants in real driving conditions are higher than the certification thresholds. So, what’s at stake is the air quality which degraded continuously despite the ever-increasing severity of the regulations. Thus, from September 2017, the RDE test will become part of the type approval process for all cars sold in Europe. As its name points out, it will include “real world driving” using a portable emissions measurement system (PEMS).

The paper presents the RDE features as well as the challenges which comes with its implementation: PEMS mounting, testing environment, boundary conditions, repeatability, engine map requirements. The results presented in the paper issued from the existing cooperation on this topic between University of Pitesti and Renault Technologie Roumanie.

real driving emissions; portable emission measurement system