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| Document title | UN R152: Proposal to amend the Peak Braking Coefficient reference | ||||||||||
| Date | 29 Jan 2021 | Argument for revising the PBC values used in the regulation based on technological progress in tyres and impact on road-friction parameters. | |||||||||
| Source(s) | CLEPA and OICA | ||||||||||
| Status | |||||||||||
| Rulemaking area(s) | |||||||||||
| Meeting(s) | |||||||||||
| Related documents | |||||||||||
| GRVA-09-18 | UN R152: Proposal for amendments (Informal GR review) | ||||||||||
| Downloads: | .pdf format | .pptx format | |||||||||
| Excerpts from session reports related to this document | |||||||||||
| GRVA | Session 9 | 1-5 Feb 2021 |
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. |
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