Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.

The Task Force on Vehicles’ Sound (TF-VS) was established to review sound emissions regulations for M, N, and L category vehicles under UN Regulations 51, 9, 28, 41, 59, 63, 92, 117, and 138. The TF-VS will identify available studies, analyze data including Phase 3, review interactions between vehicle sound emissions and environmental noise, and propose improvements. THe group is chaired by France with OICA as Secretary and will focus initially on M and N vehicles.

Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.

The purpose is to ensure that the target test speed is either 10 km/h, or 20 km/h, in forward motion, or 6 km/h in reverse motion and that the tolerances given by the regulation are linked to the testing and not used for more favorable testing speed.

Request for additional data and information in the event of a future, similar, proposal under the 1998 Agreement, which would require ensuring compatibility with other enforcement systems.

This revised document intended to present to amend 117 the timetable for the work related to Regulation No. 117 has been shifted with approximately 12 months for this part.
The aim of the IWG is to propose harmonized measures for evaluating systematic errors and random errors to improve the test procedures to reduce measurement uncertainties

IWG on Measurement Uncertainties identified the temperature behaviour of tyre rolling sound component as a contributor to the measurement uncertainty of pass-by noise tests. Since in UN Reg. No.117 a temperature correction of tyre rolling sound is already established the group investigated an adoption of the existing calculation procedure. Due to the different testing conditions in UN Reg. No.117, new scientific investigations and industry data in pass-by testing the group worked out a temperature correction, which is adopted to the requirements of UN Reg. No.51.

IWG proposal to introduce to establish a cross-reference to the Ice Grip test method and to introduce the same pictogram that will be included in the UN Regulation 117

Introduces Real Driving Additional Sound Emission Provisions (RD-ASEP) for vehicles of categories M1 and N1 covering driving conditions outside of normal driving with higher accelerations and vehicle speeds up to 100 km/h

TF TPMSTI implements the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS)

TFVS analyses of the feasibility of further limit value reductions and their effectiveness in real traffic conditions.

Comments on the proposals prepared by BIPAVER, France and Netherland to align the test procedures for retreaded tyres with the latest amendments to R30, R54 and R117.

This proposal aligns with the “Alpine symbol” location that is not restricted to the lower area of the tyre as prescribed in UN Regulation No. 117, especially considering the larger dimensions of the “Snow Grip Marking for Studded Tyres"

IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12

Summary of GRBP-74-06

Corrections and alignment to document ECE/TRANS/WP.29/GRBP/2021/15

Proposal from the TPMSTI task force to update draft provisions for performance testing of Tyre Pressure Monitoring System/Tyre Pressure Refill System/Central Tyre Inflation System and for an alternative procedure for type approval of subject trailer(s).

Presentation on proposed amendments to align with the latest amendments made on UN Reg 41 and to reduce the number and amount of different exhaust types to be approved by NORESS manufacturers

IWG to propose amendments to UN R117

Proposal to amend ECE/TRANS/WP.29/GRBP/2021/23