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Working Party on Noise and Tyres

Session 77

7-10 Feb 2023 | Geneva

Agenda Item 3. UN Regulation No. 51 (Noise of M and N categories of vehicles)

Documentation

Annotations

GRBP-76-10 Questions on documents GRBP/2022/4 and GRBP-75-37 (Monitoring phase of RD-ASEP from 1 July 2023)

GRBP-77-05 UN R51: Consolidated version of Supplement 8 to the 03 series of amendments

GRBP-77-07 A general approach how to handle noise measurement uncertainty

GRBP-77-08 Proposal for a Revision 2 to the general approach how to handle noise measurement uncertainty

GRBP-77-15/Rev.1 UN R51: RD-ASEP Monitoring Data sheet V4

GRBP-77-26 UN R51: Explanatory note regarding documents GRBP/2023/12 and GRBP-77-05

GRBP-77-28 Research on Measurement Methods for Heavy-Duty Vehicles in Multiple Driving Mode Conditions

GRBP/2023/12 UN R51: Proposal for corrections to the 03 series of amendments

GRBP will be informed about editorial corrections and clarifications to Supplement 7 to the 03 series of amendments to UN Regulation No. 51 that were prepared by the experts from the Informal Working Groups on Measurement Uncertainties (IWG MU) and on Additional Sound Emission Provisions (ASEP), as well as from the International Organization for Standardization (ISO).

GRBP-76-10 Questions on documents GRBP/2022/4 and GRBP-75-37 (Monitoring phase of RD-ASEP from 1 July 2023)

GRBP-77-05 UN R51: Consolidated version of Supplement 8 to the 03 series of amendments

GRBP-77-07 A general approach how to handle noise measurement uncertainty

GRBP-77-08 Proposal for a Revision 2 to the general approach how to handle noise measurement uncertainty

GRBP-77-13/Rev.1 UN R51: Proposal for corrections to Supplements 7 and 8 to the 03 series of amendments

GRBP-77-15/Rev.1 UN R51: RD-ASEP Monitoring Data sheet V4

GRBP-77-26 UN R51: Explanatory note regarding documents GRBP/2023/12 and GRBP-77-05

GRBP-77-28 Research on Measurement Methods for Heavy-Duty Vehicles in Multiple Driving Mode Conditions

At the previous session, the expert from the International Organization of Motor Vehicle Manufacturers (OICA) raised a number of practical questions on collecting and analysing test data for the Real Driving Additional Sound Emission Provisions (RD ASEP). GRBP invited contracting parties applying UN Regulation No. 51 to prepare proposals on this issue and agreed to revert to it at this session.

GRBP-77-05 UN R51: Consolidated version of Supplement 8 to the 03 series of amendments

GRBP-77-07 A general approach how to handle noise measurement uncertainty

GRBP-77-08 Proposal for a Revision 2 to the general approach how to handle noise measurement uncertainty

GRBP-77-10/Rev.1 Noise Measurement Uncertainties informal group status report to GRBP

GRBP-77-13/Rev.1 UN R51: Proposal for corrections to Supplements 7 and 8 to the 03 series of amendments

GRBP-77-28 Research on Measurement Methods for Heavy-Duty Vehicles in Multiple Driving Mode Conditions

GRBP/2023/12 UN R51: Proposal for corrections to the 03 series of amendments

GRBP will also receive a progress report of IWG MU.

GRBP-77-09 UN R51: Proposal for a Supplement 9 to the 03 series of amendments

GRBP-77-14 RD-ASEP: Organizational Questions regarding the Monitoring Phase