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UN R152: Proposal to amend the Peak Braking Coefficient reference
Document GRVA-09-17
29 January 2021

Argument for revising the PBC values used in the regulation based on technological progress in tyres and impact on road-friction parameters.

Submitted by CLEPA and OICA
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Previous Documents, Discussions, and Outcomes
7. | Advanced Emergency Braking Systems

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.

Related and Previous Documents
GRVA-09-18
Relates to UN R152 |