JRC contracted Ricardo-AEA. Presentation provided by B. Giechaskiel.
Heavy Duty include regeneration PN measurements – continuous and periodic, however, PN measurements during regeneration are currently excluded from light duty emissions requirements.
Regen measurements with 10nm and 23nm CPCs show no indication of artefact. The artefact shows up in the 6nm measurements.
Considering the PN-PEMs project for RDE in Europe, useful to consider how regeneration in real driving situation compares to regeneration in a laboratory.
Clear need identified to ensure pre-conditioning occurs prior to testing post-regeneration.
Identified need to consider regen from multi-device aftertreatment systems (eg either LNT or SCR and DPF.
Essential to use Euro 6 vehicles .
JRC test plan (under revision) for diesel regeneration aims to start Sept 2014 in parallel with PN-PEMS. JRC will use the WLTC as the cycle for study basis.
Further discussions on issues with measuring regeneration on GPF (passive rather than active regen) – agreed to review in 1 month by web conference and tentatively to cancel the GRPEPMP session.