| UN R138: Proposal to amend GRBP/2024/2 |
| Reference Number: GRBP-79-34/Rev.2 |
|
Updated proposal for a 02 series of amendments to specify the working principles of an Acoustic Vehicle Alerting System (AVAS) and to reduce measurement uncertainties during the measurement of the one third octave bands. |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 08 Feb 24 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 138 | Quiet Road Transport Vehicles |
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| UN R117: Overview of current documents |
| Reference Number: GRBP-79-35/Rev.1 |
| Submitted by: ETRTO |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 09 Feb 24 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: New design C3 SRTTs - Snow performance; Additional Explanations |
| Reference Number: GRBP-79-36 |
| Submitted by: ETRTO |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 03 Feb 24 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Tyre Abrasion Study for vehicles of category M & N |
| Reference Number: GRBP-79-37 |
| Submitted by: OICA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 03 Feb 24 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R41: Introduction to the proposed interpretation documents |
| Reference Number: GRBP-79-38 |
| Submitted by: IMMA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 03 Feb 24 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| Click here to view the full document file |
| Work on Exterior Acoustic Signaling |
| Reference Number: GRBP-79-39 |
| Submitted by: OICA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 03 Feb 24 |
| Relevant to: WP.29 Discussion Topic | Exterior Acoustic Signalling |
| Click here to view the full document file |
| TF Vehicles' Sound: Status Report |
| Reference Number: GRBP-79-40 |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 03 Feb 24 |
| Relevant to: WP.29 Discussion Topic | Vehicle Sound |
| Click here to view the full document file |
| UN R138: Proposal to amend GRBP/2024/2 |
| Reference Number: GRBP-79-41 |
| Submitted by: Australia |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 05 Feb 24 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 138 | Quiet Road Transport Vehicles |
| Click here to view the full document file |
| List of relevant GRBP Regulations for software updates |
| Reference Number: GRBP-79-42 |
| Submitted by: France |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 05 Feb 24 |
| Relevant to: UN Regulation No. 9 | Three-Wheeled Cycle Noise, UN Regulation No. 41 | Motorcycle Noise, UN Regulation No. 51 | Vehicle Noise Emissions, UN Regulation No. 63 | Two-wheeled Moped Noise, UN Regulation No. 64 | Temporary-use Tires, UN Regulation No. 142 | Tyre Installation, UN Regulation No. 138 | Quiet Road Transport Vehicles, UN Regulation No. 141 | Tyre Pressure Monitoring Systems, UN Regulation No. 165 | Audible Reversing Warning Systems, and UN Regulation No. 156 | Software Update Processes and Management Systems |
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| UN R51: Proposal for a supplement 11 to the 03 series of amendments |
| Reference Number: GRBP-79-43 |
|
In introducing ASEP in Annex 7 in 2016, the scope was limited to vehicles with internal combustion engines (ICE) based on the experience of variabilities in the exhaust silencing systems. Electric driven vehicles have been exempted from ASEP. For electric driven vehicles the new UN Regulation No. 138, dealing with the reduced audibility of these vehicles, was worked out until 2017. At that moment no one expected sound enhancement systems beyond the scope and aim of UN R138. This proposal is an approach to address the concern that electric vehicles might be equipped with sound enhancement systems beyond the scope and aim of UN R138. This proposal does not require any changes to UN R138.01. This proposal is given as a supplement to enable the quickest entry into force, providing all manufacturers clear direction on the design of sound enhancement systems. |
| Submitted by: OICA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 06 Feb 24 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R138: Position paper on the proposed 02 series of amendments |
| Reference Number: GRBP-79-44 |
| Submitted by: OICA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 07 Feb 24 |
| Relevant to: UN Regulation No. 138 | Quiet Road Transport Vehicles |
| Click here to view the full document file |
| ASEP / RD-ASEP Study |
| Reference Number: GRBP-79-45 |
| Submitted by: OICA |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 06 Feb 24 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Wet Grip on Worn Tyres informal group status report to GRBP |
| Reference Number: GRBP-79-46 |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 06 Feb 24 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Tyre Abrasion task force status report to GRBP |
| Reference Number: GRBP-79-47/Rev.1 |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 08 Feb 24 |
| Relevant to: UN Regulation No. 186 | Tyre abrasion |
| Click here to view the full document file |
| Noise Measurement Uncertainties: Proposal to amend GRBP/2024/8 |
| Reference Number: GRBP-79-48/Rev.1 |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 08 Feb 24 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for amendments to the working document GRBP/2024/12 |
| Reference Number: GRBP-79-49 |
| Submitted by: France |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 08 Feb 24 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for amendments to document GRBP/2024/4 |
| Reference Number: GRBP-79-50 |
| Submitted by: France |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 08 Feb 24 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Report of the 79th (February 2024) GRBP session |
| Reference Number: GRBP/77 |
| Meeting Sessions: 79th GRBP session (6-9 Feb 2024) |
| Document date: 05 Mar 24 |
| Click here to view the full document file |
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Informal Working Group: A group of experts authorized to develop proposals for consideration by WP.29 without being bound by formal UN rules of procedure.
Standard Reference Test Tyre