Reg. EC 1151/2017 Annex I subpar. 4.1. Annex I subpar 4.2 4.1.4. The frequency for product verification performed by the manufacturer saa>hall be based on a risk assessment methodology consistent with the international standard ISO 31000:2018 — Risk Management — Principles and guidelines and at least for Type 1 with a minimum frequency per COP family of one verification per 5 000 vehicles produced or once per year, whichever comes first. 4.2.2. A sample of three vehicles shall be selected at random in the COP family. After selection by the approval authority, the manufacturer shall not undertake any adjustment to the vehicles selected.
COP: current issues Jan Feb Mch Apr May Jun Jul Aug Sep Oct Nov Dez Situation if one has to finish within 5000 vehicles??? IP1 ~20 000 IP2 ~6 000 IP3 ~10 IP4 ~ 15 000 SOP How to finish??? ? ? ? Overlapping samples belonging to different statistics? SOP Production slot for vehicle 1-5000 Production slot for vehicle 10001-15000 First 3 vehicles are selected in advance Production slot for vehicle 5001-10000
UNECE WLTP COP task-Force Revision on testing Frequency Mandate of the CoP Taskforce The CoP Taskforce shall: .. introduce a harmonised procedure (e.g. statistical approach, sampling frequency etc.) to demonstrate Conformity of Production (CoP) for the Type 1 test in GTR 15 the Type 4 test in GTR 19, and the future UN Regulation WLTP; … Current EU: 1 sample per 5000 vehicles in an IP-family; at least once per year risk assesment necessary to analyze a sufficient number but high burden for small and large families << and >> 5000 vehicles / year 3
Limit number of samples per year for large families UNECE WLTP COP task-Force Revision on testing Frequency Proposal: Allow for COP-families under certain conditions for small families, e.g. Split IP-families due to exceedance of max. range (30g/km) Same engine, same drivetrain, same emission character but different engine power Same engine, same gearbox but 2WD/4WD Separate IP-families only due to gear ratios difference Extend to 2 year-period to finish the sample for <1000 veh/y … Limit number of samples per year for large families 4