Text prepared by the experts of TF TPMSTI in order to align with the provisions of European Union Regulation 2019/2144 and to introduce the TPMS requirements for all vehicle categories, including trailers. The proposal addresses the communication interface protocol of TPMS between towing and towed vehicles of categories N2, N3 and O3, O4, respectively (described in Annex 5 on the basis of the ISO bus requirements) in alignment with UN R13 and ISO updates. The proposal further corrects and clarifies provisions across TPMS, TPRS and CTIS.
25. The experts from the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI) reported on their progress (GRBP-75-11) and introduced a proposal that aimed at implementing the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS) (ECE/TRANS/WP.29/GRBP/2022/2 and GRBP-75-10). The expert from CLEPA suggested further amendments (GRBP-75-33 and GRBP-75-34).
26. GRBP adopted the proposal, as amended by GRBP-75-10 and GRBP-75-33, and requested the secretariat to submit it for consideration and vote at the June 2022 sessions of WP.29 and AC.1 as draft Supplement 2 to the 01 series of amendments to UN Regulation No. 141.
25. On behalf of the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI), the expert from EC briefed GRBP on their progress (GRBP-74-25) and proposed amendments that aimed to align the transitional provisions in UN Regulation No. 141 with those in European Union Regulation 2019/2144 (ECE/TRANS/WP.29/GRBP/2021/19). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 1 to the 01 series of amendments to UN Regulation No. 141.
26. The expert from TF TPMSTI presented further amendments to UN Regulation No. 141 that introduced an alternative procedure for type approval of trailers (vehicles of categories O3 and O4), regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS) (ECE/TRANS/WP.29/GRBP/2021/20). GRBP adopted these proposals, as amended by GRBP-74-37, and requested the secretariat to submit them for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as part of draft Supplement 1 to the 01 series of amendments to UN Regulation No. 141.
27. GRBP generally supported GRBP-74-26 and invited TF TPMSTI to submit it to the next session in the form of an official document.
48. The GRBP Chair reported on the results achieved by GRBP at its seventy-third session (for details, see the report of the session ECE/TRANS/WP.29/GRBP/71).
49. He mentioned that GRBP had adopted modifications to the draft 01 series of amendments to UN Regulation No. 141 (Tyre pressure monitoring system). He recalled that the draft 01 series of amendments would still be addressed by WP.29 this week (ECE/TRANS/WP.29/2021/10) and encouraged the World Forum to consider instead a revised consolidated proposal ECE/TRANS/WP.29/2021/10/Rev.1 under agenda item 4.6.9.
50. He also pointed out that GRBP had agreed to update the Terms of Reference of its two IWGs on Measurement Uncertainties (MU) and on Wet Grip Performance for Tyres in a Worn State (WGWT). WP.29 noted that the revised Terms of Reference were annexed to the report of GRBP at its seventy-third session.
51. WP.29 endorsed the updates of the Terms of Reference of the IWG MU and IWG WGWT.
78. The World Forum considered draft amendments under agenda items 4.6.1 to 4.6.7. and recommended their submission to AC.1 for voting, subject to the following corrections of ECE/TRANS/WP.29/2021/8 under agenda item 4.6.6 (WP.29-183-06):
In paragraph 4.4.1., replace “markings” with “approval mark”.
In paragraph 9.1., delete from the proposal (i.e. keep the paragraph in its current form).
79. The Chair of GRBP presented draft amendment proposals contained in documents ECE/TRANS/WP.29/2021/3, ECE/TRANS/WP.29/2021/10 and Rev.1, ECE/TRANS/WP.29/2021/11 under agenda item 4.6.8 to 4.6.10., to amend UN Regulations Nos. 41, 141 and 142. The World Forum recommended their submission to AC.1 for voting.
19. GRBP took note of the activities of the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI) (GRBP-73-13) and addressed amendment proposals on the requirements for the communication interface between the towing and towed vehicles that had been prepared by TF TPMSTI (ECE/TRANS/WP.29/GRBP/2021/6 and GRBP-73-03).
20. GRBP adopted the proposals and requested the secretariat to include them in a revised document ECE/TRANS/WP.29/2021/10/Rev.1 for consideration and vote at the March 2021 sessions of WP.29 and AC.1 as part of a draft new 01 series of amendments to UN Regulation No. 141.
| GRBP/2020/20 | |
| GRBP/2021/6 | |
| GRBP-73-03 | |
| TPMSTI-19-02 | |
| GRBP/2021/19 | |
| GRBP/2021/20 | |
| GRBP-74-26 | |
| WP.29/2021/10 | |
| GRBP/2022/2 |