Argument for revising the PBC values used in the regulation based on technological progress in tyres and impact on road-friction parameters.
89. The expert from OICA introduced GRVA-09-18 and mentioned GRVA-09-17 explaining an issue related to the PBC reference in UN Regulation No. 152. She explained that deceleration of nine m/s2 were the basis for calculation of performance criteria and that therefore a PBC value of 0.9 was not sufficient. She mentioned a revised proposal contained in GRVA-09-18/Rev.1 (document not available) to be discussed until the next session of GRVA.
90. The expert from Germany supported the proposed way forward. The expert from Canada raised a study reservation. The experts from Korea and the European Commission supported the OICA proposal.
91. GRVA agreed to resume consideration of this item at its next session.
89. The expert from OICA introduced GRVA-09-18 and mentioned GRVA-09-17 explaining an issue related to the PBC reference in UN Regulation No. 152. She explained that deceleration of nine m/s2 were the basis for calculation of performance criteria and that therefore a PBC value of 0.9 was not sufficient. She mentioned a revised proposal contained in GRVA-09-18/Rev.1 (document not available) to be discussed until the next session of GRVA.
90. The expert from Germany supported the proposed way forward. The expert from Canada raised a study reservation. The experts from Korea and the European Commission supported the OICA proposal.
91. GRVA agreed to resume consideration of this item at its next session.