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Working Party on Noise and Tyres
Session 78
30 Aug-1 Sep 2023 | Geneva
Agenda Item 7. (c) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)
Documentation
Annotations
GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-05 UN R117: Proposal for Supplement 2 to the 04 series of amendments
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-15 Worn Tyres: Proposal for revised Terms of Reference for the working group
GRBP-78-15 Worn Tyres: Proposal for revised Terms of Reference for the working group
GRBP-78-16 Worn tyres: Status report of the working group
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-06 UN R117: ETRTO and STEER Analysis of Measurement Uncertainty

GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in Worn State (IWG WGWT).

GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-05 UN R117: Proposal for Supplement 2 to the 04 series of amendments
GRBP-78-05 UN R117: Proposal for Supplement 2 to the 04 series of amendments
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-15 Worn Tyres: Proposal for revised Terms of Reference for the working group
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP/2023/19 UN R117: Proposal for Supplement 2 to the 04 series of amendments
GRBP-78-06 UN R117: ETRTO and STEER Analysis of Measurement Uncertainty

GRBP is invited to address a proposal by IWG MU which introduces measures to reduce variability.

GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-04 UN R117: C2 noise temperature correction update
GRBP-78-05 UN R117: Proposal for Supplement 2 to the 04 series of amendments
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-07 Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
GRBP-78-15 Worn Tyres: Proposal for revised Terms of Reference for the working group
GRBP-78-15 Worn Tyres: Proposal for revised Terms of Reference for the working group
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-28/Rev.1 New design C3 standard reference test tyres
GRBP-78-33 UN R117: Proposal for amendments
GRBP-78-06 UN R117: ETRTO and STEER Analysis of Measurement Uncertainty

GRBP will recall that, at its previous meeting, the expert from the American Automotive Policy Council (AAPC) briefly introduced GRBP-77-23 and that GRBP agreed to address the issue in detail at this session.

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