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 GRPE PMP session.