Proposal to adapt the 06 and 07 series of amendments to Regulation No. 83 to Selective Catalytic Reduction (SCR) warning and inducement systems to current vehicles, emissions requirements and reagent infrastructure. In light of further vehicle weight reduction for CO2 optimization and the resultant vehicle packaging challenges, diesel cars will likely have smaller AdBlue® reagent tanks. For passenger cars, the warning indicator to refill AdBlue® has to be activated at 2,400 km of remaining reagent range which could result in very frequent refills of smaller reagent tanks. This proposal would allow for reagent refill inducement warnings as a percentage of tank capacity or as a function of the average driving range with a complete tank of fuel.
8. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2018/7 aimed at clarifying provisions on Selective Catalytic Reduction (SCR) systems. The expert from EC proposed editorial corrections (GRPE-76-34) to ECE/TRANS/WP.29/GRPE/2018/7. GRPE adopted the proposal as reproduced in Annex IV of the session report.
9. GRPE requested the secretariat to submit ECE/TRANS/WP.29/GRPE/2018/6 and Annex IV to the report to WP.29 and the Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2018 sessions as draft Supplements 11 and 7 to the 06 and the 07 series of amendments to UN Regulation No. 83.