| RDASEP Data Analysis task force: Summary of the 15th (July 2026) session |
| Reference Number: RDASEP-TFDA-15-04 |
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Task Force Data Analysis held an online meeting on 7 July 2026. The group discussed database analysis, including insufficient data for higher performance and acceleration, and agreed that more data are needed. When new data are generated, operation conditions should focus on higher performances covering the ASEP range, higher accelerations up to and exceeding 5 m/s, pass-by runs with gear shifting, and low speed measurements in the UN R117 AVAS control range. The group reviewed proposals to the TF-Editing based on draft UN R51.04 and agreed some changes, with review results to be uploaded as Rev.1. A question regarding the phrase “but no more than 2.0 m/s” in paragraph 3.1.2.1.4.3 regarding vehicles with only one gear ratio was noted as issue #23 pending further review. |
| Meeting Sessions: 15th RDASEP-TFDA session (7 Jul) |
| Document date: 08 Jul 26 |
| 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 |
| Tyre Abrasion task force updated timelines |
| Reference Number: TA-50-05 |
| Meeting Sessions: 50th TA session (6 Jul) |
| Document date: 06 Jul 26 |
| Relevant to: UN Regulation No. 186 | Tyre abrasion test method development |
| Click here to view the full document file |
| Tyre abrasion task force: Participants list from the 49th session |
| Reference Number: TA-49-05 |
| Meeting Sessions: 49th TA session (3 Jun) |
| Document date: 03 Jul 26 |
| Relevant to: UN Regulation No. 186 | Tyre abrasion test method development |
| Click here to view the full document file |
| Tyre Abrasion: Minutes of the 49th (June 2026) session |
| Reference Number: TA-49-04/Rev.1 |
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Draft minutes of the 49th session of the Task Force on Tyre Abrasion (TFTA), held June 3rd, 2026 (9:00–12:00 CET). Previous meeting minutes were approved. Action item TA-48-1: ETRTO to check feasibility to upload acceleration calculation examples on TFTA wiki. ETRTO confirmed feasibility assessment completed; example files could be moved to TFTA wiki with a disclaimer that TFTA is not responsible for example content. Action item TA-49-1: ETRTO will prepare disclaimer to be reviewed and validated by TFTA during 50th session. Agenda adopted. ETRTO presented comments on updated Gantt prepared by UTAC per document TA-49-03. TFTA agreed to evaluate data analysis per tyre segment when data available. JASIC requested more time to review and provide feedback next session. ETRTO and JATMA tyre manufacturers ready to make selected tyres available; first orders and deliveries started last week of May. Training session on best practices organized 2nd half of June. Action item TA-48-2: SWG on data assessment to redefine scope and mandate. SWG leader presented amendment proposal per document TA-49-02. TFTA agreed with SWG scope and mandate per TA-49-02/Rev.1. ETRTO stated mileage potential work should address all TFTA members and tyre manufacturers associations at UN level. JRC studying tread depth divided by abrasion index approach. Topic readdressed next TFTA. ETRTO noted test campaign running; final results expected Q4 2026 including 2nd set Normal and 3PMSF temperature behavior tests and pressure impact test. Action item TA-49-2: EC and JRC will reflect by next TFTA session how annex 4 would be impacted considering C2 tyres. TFTA co-chair suggested extraordinary brainstorming session end September/beginning October 2026 for C3 tyre abrasion test method development. Next meetings: 50th session July 6 (9:00–12:00 CET); 51st session August 25 (9:00–12:00 CET). |
| Meeting Sessions: 49th TA session (3 Jun) |
| Document date: 03 Jul 26 |
| Relevant to: UN Regulation No. 186 | Tyre abrasion test method development |
| Click here to view the full document file |
| Tyre abrasion: Data assessment status report |
| Reference Number: TA-50-02 |
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The Tyre Abrasion Task Force has completed tyre selection for the Confirmation plan 2026 and informed candidate test facilities. Tyre availability and shipments remain ongoing. Data collection and compilation for data assessment awaits test commencement. The SWG on Data Assessment has agreed to transfer discussions regarding exclusion criterion for high variability tyres and acceleration corrections to TAPP upon its resumption of meetings. |
| Meeting Sessions: 50th TA session (6 Jul) |
| Document date: 03 Jul 26 |
| Relevant to: UN Regulation No. 186 | Tyre abrasion test method development |
| Click here to view the full document file |