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| Document Title | UN R152: Proposal to amend the Peak Braking Coefficient reference | ||||||||
| Reference Number | GRVA-09-17 | ||||||||
| Date |
29 Jan 2021
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| Summary | 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 | ||||||||
| Rulemaking Area(s) | UN R152 Light Vehicle AEBS | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRVA-09-18 | UN R152: Proposal for amendments | ||||||||
| Downloads | |||||||||
| UNECE server | .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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