GAR | GRSG/2017/16

Document Title: UN R75: Proposal for amendments

Document Reference Number: GRBP/2023/7

Description:

Proposal to explicitly allow other technical measurement solutions of the tyre overall width by removing the words “by calliper”, add the definition of “special tyre”, clarify the definition of “snow tyre”, to enable the case of a “special tyre” fulfilling the definition of a “snow” tyre, clarify application of the suffix “M/C”, and make editorial corrections and clarifications.

Submitted by: ETRTO

Meeting Session: 77th GRBP session (7-10 Feb 2023)

Document date: 25 Nov 22 (Posted 25 Nov 22)

Document status: Formal GR review change

This document concerns UN Regulation No. 75 | Motorcycle and Moped Tires.

Document Title: UN R54: Proposal for amendments

Document Reference Number: GRBP/2023/11

Description:

Proposal to address the following:

1. “Special use” tyres with nominal rim diameters larger than those listed in the present table (rim diameters up to 42, section widths up to 750 mm and overall diameters over 2 meters) and with speed symbols F and above have been announced in the European market as original equipment of N3G “special purpose vehicles” (i.e., special high speed self-propelled vehicles for agricultural and forestry use, like wood choppers).

2. Existing multi-purpose tyres (MPT) (classified as “special use tyres” as per paragraphs 2.5.3. and 3.1.13.), already type approved since years, have a tread pattern with lugs or cleats in addition to those with blocks, as evidenced by the attached slide showing some examples. It is proposed to amend paragraph 6.3.1. by clarifying that lugs and cleats are possible shapes of the mentioned blocks.

3. Testing tyres with very large overall diameters, sometimes over 2 m, on a test drum with a diameter of 1.70 m ± 1 % would be unpracticable. For practical reasons most of those
tyres are regularly tested on drums with a diameter of 3 m or even larger. The proposal carries equivalence provisions from UN R106 to justify the equivalence of the test method as required by Annex 7 in point 4 “Equivalent test methods" and clarifies based on UN R117 the formula already used indirectly.

4. Some commercial vehicles are often used in the market at a reduced speed of 70 km/h with a load-capacity of the tyres increased as per load/speed combination defined in the table of Annex 8. The proposal would allow use of the speed category symbol E (but restrict it to “additional service description”) to provide this information.

5. Considering that 32 km/h is already a floor value for the test-drum speed for diagonal tyres, ETRTO proposes not to apply to E speed category symbol tyres the linear decrease of
the test-drum speed in function of the decrease of the speed category symbol by keeping, for safety reasons, the same test-drum speed as for F speed category symbol tyres, i.e., 32 km/h).

6. In the case of additional service descriptions mentioned in paragraph 6.2.5.1., it is proposed not to perform the additional load/speed test because the load-capacity approximates with a negligeable difference the reduction or the increase in percentage of the nominal load/speed combination applicable to the nominal speed category symbol (see Annex 8).

7. Type approval applications for radial tyres with load capacity index greater or equal to 122 and without the additional marking “LT”, or “C” have been done in the past for the speed category symbol N for which the load/speed endurance test procedure is not described in Annex 7, Appendix 1. To type approve such tyres the test speed was separately defined by the different involved Type Approval Authorities. In order to harmonize the test procedure to be used for the type approval of such tyres, it is proposed to amend the Annex 7, Appendix 1 by introducing testing conditions in line with the rule applied for defining the test speed of radial tyres with load capacity index greater or equal to 122 (i.e. starting from 32 km/h set for F speed category symbol, the test speed is increased by 8 km/h respect to the one set for the previous speed category symbol).

8. The definition of “snow tyre” is amended to clarify that “snow tyres” are not only suitable for the use in snow conditions but also on mud and by replacing the term “maintain vehicle motion” (i.e. keeping the vehicle speed and direction of movement constant) by a more general concept of “controlling vehicle motion” (i.e. also being able to change the vehicle speed and direction of movement as intended).

9. It is proposed to explicitly allow other technical measurement solutions of the tyre overall width by removing the words “by caliper” which fix a technical limitation. The removal of this technical limitation would be advisable following the principle of not stopping the technical innovations.

10. Editorial corrections are introduced to ensure that the terms “load-capacity” and “speed category symbol” are used consistently throughout the text and to remove some typing mistakes present in the current text.

Submitted by: ETRTO

Meeting Session: 77th GRBP session (7-10 Feb 2023)

Document date: 25 Nov 22 (Posted 25 Nov 22)

Document status: Formal GR review change

This document concerns UN Regulation No. 54 | Commercial Vehicle Tyres.

Document Title: GTR 20: Questions on the presentation “Venting of Gases Test for Electric Vehicles”

Document Reference Number: EVS-25-E2TG-0301

Submitted by: JASIC

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.
This submission is related to the following document(s):

EVS-25-E2TG-0300 | GTR 20: Venting of Gases Test for Electric Vehicles Available formats: pdf

Document Title: Presentation list for the 25th EVS informal group session

Document Reference Number: EVS-25-A02

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.

Document Title: GTR 20: Vibration Profile task force status report

Document Reference Number: EVS-25-E3VP-0100

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.

Document Title: GTR 20: Thermal Propagation task force status report

Document Reference Number: EVS-25-E1TP-0100

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.

Document Title: GTR 20: Replies to questions on gas emissions

Document Reference Number: EVS-25-K04

Description:

JRC replies to the questions received from the 24th EVS informal group session on the presentation “Gas emissions from thermal runaway and propagation of Li-ion battery cells in short stack and module experiments”.

Submitted by: JRC

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.
This submission is related to the following document(s):

EVS-24-E1TP-0401 | Gas emissions from thermal runaway and propagation of Li-ion battery cells in short stack and module experiments Available formats: pdf

Document Title: GTR 20: Gas emissions in thermal runaway propagation experiments

Document Reference Number: EVS-25-E2TG-0400

Submitted by: EC

Meeting Session: 25th EVS session (29 Nov-2 Dec)

Document date: 25 Nov 22 (Posted 25 Nov 22)

This document concerns GTR No. 20 | Electric Vehicle Safety.

Regulation:	UN Regulation No. 41 \| Motorcycle Noise
Document:	Revision 2 \| Amendment 11
Corresponds to:	04 series of amendments \| Supplement 10 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/77 Proposal to correct some references, which need to be updated as a consequence of document WP.29/2020/70, adopted at the June 2020 WP.29 session, notably Paragraph 5.4.1 renumbered as paragraph 5.5.1. Paragraphs 5.4. and 5.5. respectively renumbered as paragraphs 5.5. and 5.6.

Regulation:	UN Regulation No. 30 \| Pneumatic Tires
Document:	Revision 3 \| Amendment 10
Corresponds to:	02 series of amendments \| Supplement 24 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/75 Proposal to amend the extended mobility tyre (EMT) symbol following the detection of dimensional inconsistencies within the International Organization for Standardization Working Group (ISO) TC31/SC3/WG19, where the dimension “0,33h” was judged wrong and constituting an unnecessary over constraint and to amend the inflation value to be used for the tyre conditioning when assessing the “flat tyre running mode” of “run flat tyres” and of “extended mobility tyres”.

Regulation:	UN Regulation No. 24 \| C.I. Engine Emissions and Net Power
Document:	Revision 2 \| Amendment 6
Corresponds to:	03 series of amendments \| Supplement 6 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/67 Proposal to clarify the scope and application of the regulation.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Amendment 4
Corresponds to:	00 series of amendments \| Supplement 3 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/15 Proposal to improve the Appendix 2 Annex 3 for assessing robustness against false reaction, to introduce new provisions for automatic deactivation of AEBS, and to improve the text in other instances.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Revision 1 \| Amendment 3
Corresponds to:	02 series of amendments (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/18 Proposal to introduce provisions under a car-to-bicycle test scenario.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Revision 1 \| Amendment 2
Corresponds to:	01 series of amendments \| Supplement 2 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/16 Proposal to improve the Appendix 2 Annex 3 for assessing robustness against false reaction, to introduce new provisions for automatic deactivation of AEBS, and to improve the text in other instances.

Regulation:	UN Regulation No. 106 \| Tires for Agricultural Vehicles
Document:	Revision 2 \| Amendment 9
Corresponds to:	00 series of amendments \| Supplement 19 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/7 Proposal for alternative language regarding markings to avoid use of the term “moulded” which could be interpreted as a technical design restriction and to add a reference to “log-skidder” tyres.

Regulation:	UN Regulation No. 75 \| Motorcycle and Moped Tires
Document:	Revision 2 \| Amendment 6
Corresponds to:	00 series of amendments \| Supplement 19 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/6 Proposal to Change the definition of the tyre size designation by including prefixes and suffixes as well as the code for the tyre structure Clarify the use of sizes listed in Annex 5 Move the definition of “reinforced” into a paragraph that is not subordinated to the definition of “Structure of a tyre” Correct references and typographical errors Rearrange paragraphs and amendments in order to increase readability Delete an unnecessary cross-reference to UN Regulation No. 54 Change the definition of “bias-belted” Amend the definition of “snow tyres” by replacing “ordinary (road-type) tyres” (which is not defined) by “normal tyre”, removing the note that snow tyres generally have more widely spaced ribs or blocks Include a general provision addressing the gap between the effective date of entry into force and the date of notification of the adoption of the Supplement to the Contracting Parties Keep the restriction of measurement of overall diameter after load/speed test only to diagonal tyres (For radial the variation of outer diameter of the tyre, measured six hours after the load/speed performance test as specified in paragraph 2 of Annex 7, is far below ±3.5 per cent from the outer diameter as measured before the test.) Remove use of the word “moulding” Resolve conflicting provisions in Annex 2 concerning the minimum size of the approval mark Clarify that mounting motorcycle tyres on motorcycle rims is the standard configuration and that “M/C” marking is optional for the sizes listed in Annex 5.

Regulation:	UN Regulation No. 41 \| Motorcycle Noise
Document:	Revision 2 \| Amendment 11
Corresponds to:	04 series of amendments \| Supplement 10 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/77 Proposal to correct some references, which need to be updated as a consequence of document WP.29/2020/70, adopted at the June 2020 WP.29 session, notably Paragraph 5.4.1 renumbered as paragraph 5.5.1. Paragraphs 5.4. and 5.5. respectively renumbered as paragraphs 5.5. and 5.6.

Regulation:	UN Regulation No. 30 \| Pneumatic Tires
Document:	Revision 3 \| Amendment 10
Corresponds to:	02 series of amendments \| Supplement 24 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/75 Proposal to amend the extended mobility tyre (EMT) symbol following the detection of dimensional inconsistencies within the International Organization for Standardization Working Group (ISO) TC31/SC3/WG19, where the dimension “0,33h” was judged wrong and constituting an unnecessary over constraint and to amend the inflation value to be used for the tyre conditioning when assessing the “flat tyre running mode” of “run flat tyres” and of “extended mobility tyres”.

Regulation:	UN Regulation No. 24 \| C.I. Engine Emissions and Net Power
Document:	Revision 2 \| Amendment 6
Corresponds to:	03 series of amendments \| Supplement 6 (Entered into force on 7 Jan 2022)
Based on:	Document WP.29/2021/67 Proposal to clarify the scope and application of the regulation.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Amendment 4
Corresponds to:	00 series of amendments \| Supplement 3 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/15 Proposal to improve the Appendix 2 Annex 3 for assessing robustness against false reaction, to introduce new provisions for automatic deactivation of AEBS, and to improve the text in other instances.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Revision 1 \| Amendment 3
Corresponds to:	02 series of amendments (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/18 Proposal to introduce provisions under a car-to-bicycle test scenario.

Regulation:	UN Regulation No. 152 \| Automatic Emergency Braking for M1/N1 vehicles
Document:	Revision 1 \| Amendment 2
Corresponds to:	01 series of amendments \| Supplement 2 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/16 Proposal to improve the Appendix 2 Annex 3 for assessing robustness against false reaction, to introduce new provisions for automatic deactivation of AEBS, and to improve the text in other instances.

Regulation:	UN Regulation No. 106 \| Tires for Agricultural Vehicles
Document:	Revision 2 \| Amendment 9
Corresponds to:	00 series of amendments \| Supplement 19 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/7 Proposal for alternative language regarding markings to avoid use of the term “moulded” which could be interpreted as a technical design restriction and to add a reference to “log-skidder” tyres.

Regulation:	UN Regulation No. 75 \| Motorcycle and Moped Tires
Document:	Revision 2 \| Amendment 6
Corresponds to:	00 series of amendments \| Supplement 19 (Entered into force on 30 Sep 2021)
Based on:	Document WP.29/2021/6 Proposal to Change the definition of the tyre size designation by including prefixes and suffixes as well as the code for the tyre structure Clarify the use of sizes listed in Annex 5 Move the definition of “reinforced” into a paragraph that is not subordinated to the definition of “Structure of a tyre” Correct references and typographical errors Rearrange paragraphs and amendments in order to increase readability Delete an unnecessary cross-reference to UN Regulation No. 54 Change the definition of “bias-belted” Amend the definition of “snow tyres” by replacing “ordinary (road-type) tyres” (which is not defined) by “normal tyre”, removing the note that snow tyres generally have more widely spaced ribs or blocks Include a general provision addressing the gap between the effective date of entry into force and the date of notification of the adoption of the Supplement to the Contracting Parties Keep the restriction of measurement of overall diameter after load/speed test only to diagonal tyres (For radial the variation of outer diameter of the tyre, measured six hours after the load/speed performance test as specified in paragraph 2 of Annex 7, is far below ±3.5 per cent from the outer diameter as measured before the test.) Remove use of the word “moulding” Resolve conflicting provisions in Annex 2 concerning the minimum size of the approval mark Clarify that mounting motorcycle tyres on motorcycle rims is the standard configuration and that “M/C” marking is optional for the sizes listed in Annex 5.

Document GRSG/2017/16

Proposal for the 02 series of amendments to Regulation No. 67

113th GRSG session (10-13 Oct 2017)

Status: Superseded

Proposal to improve the specifications for LPG multi-valves in response to an LPG vehicle fire that resulted in injuries to first responders. A German Type Approval Authority (KBA) analysis concluded that the hose connecting the PRV/PRD of the multi-valve to the gaseous phase was damaged and hose-fragments blocked both PRV and PRD such that pressure could not be adequately reduced. The PRV and PRD were activated, but the fragments considerably reduced the effective section of the relevant tubing and prevented the release of pressure. This proposal aims to prevent such occurrences.

Submitted by Germany

Discussions and Outcomes

116th GRSG session (8-12 Apr 2019)

GRSG-116-05/Rev.1

GRSG-116-39

38. The expert from OICA recalled the purpose of ECE/TRANS/WP.29/GRSG/2018/2 and informed GRSG that parts of the proposal had been adopted and that the remaining parts had recently been reviewed by TF on gas-fuelled vehicle regulations. The expert from Germany reported on the good TF work progress force. He presented GRSG-116-05 on the outcome of TF discussions on UN Regulation No. 67. The expert from LG Europe proposed to remove the requirements for the use of an odorant in n-pentane: such requirements were not necessary and not requested in any test in the UN Regulations or in international standards (GRSG-116-39). After discussion, GRSG agreed on the revised proposal GRSG-116-05-Rev.1 and adopted ECE/TRANS/WP.29/GRSG/2018/2 as reproduced in Annex III to this report. The secretariat was requested to submit the revised proposal to WP.29 and AC.1 as draft Supplement 2 to the 02 series of amendments to UN Regulation No. 67 for consideration at their November 2019 sessions.

176th WP.29 session (12-16 Nov 2018)

WP.29/2018/124

114. The Chair of GRSG presented proposals on ECE/TRANS/WP.29/2018/123 to ECE/TRANS/WP.29/2018/126 under agenda items 4.7.4 to 4.7.7, to amend UN Regulations Nos. 46, 67, 105 and 110. The World Forum recommended their submission to AC.1 for voting.

114th GRSG session (9-13 Apr 2018)

Agenda item 6. (a) | Amendments to gas-fuelled vehicle regulations: Regulation No. 67 (LPG vehicles)

GRSG-114-08

GRSG/2018/2

23. The expert from Germany introduced GRSG-114-08 on the recent meeting of the task force on gas-fuelled vehicle regulations held in Cologne (Germany) on 6 and 7 February 2018. He added that progress had been good on UN Regulation No. 110, but the amendments to UN Regulation No. 67 were still under considerations.

25. The expert from Germany recalled the outcome of the task force (para. 23 above) on ECE/TRANS/WP.29/GRSG/2017/16 and presented GRSG-114-09 proposing amendments to the Regulation. GRSG noted general support and some comments. Finally, GRSG considered a revised proposal (GRSG-114-09-Rev.1) and adopted ECE/TRANS/WP.29/GRSG/2017/16 as reproduced in Annex V to the session report. The secretariat was requested to submit the proposal to WP.29 and AC.1 as draft 02 series of amendments to UN Regulation No. 67 for consideration at their November 2018 sessions.

26. The expert from OICA introduced ECE/TRANS/WP.29/GRSG/2018/2 on amending the provisions of the ageing test in Annex 15 of UN Regulation No. 67 and on the results of the ageing of material (e.g. rubber hoses) that is in contact with LPG. GRSG invited the task force to resume consideration of this subject and to submit in due time a proposal for consideration at the next GRSG session. ECE/TRANS/WP.29/GRSG/2018/2 would be kept on the agenda as a reference document.

113th GRSG session (10-13 Oct 2017)

Agenda item 6. (a) | Amendments to gas-fuelled vehicle regulations: Regulation No. 67 (LPG vehicles)

GRSG-113-18

28. The expert from Germany presented ECE/TRANS/WP.29/GRSG/2017/16 that amends the provisions of UN Regulation No. 67 to improve the specifications for the Liquefied Petroleum Gas (LPG) connecting the pressure relief valve with the gaseous phase for multi-valve in the vehicle tanks and those for the installation and inspection of LPG containers and their accessories. The expert from OICA introduced GRSG-113-18 on modifications to the aging test requirements of some rubber materials and on further transitional provisions. The expert from AEGPL endorsed the proposal to avoid a ban of some technologies and materials. Both proposals received a number of comments.

29. GRSG agreed on the need to revise the requirements on pipes for multivalves on LPG containers and to keep, at the same time, the testing provisions technology neutral. Thus, GRSG agreed to set up a Task Force under the leadership of Germany to find a compromise and to prepare a revised proposal for consideration at the next GRSG. It was also agreed to keep ECE/TRANS/WP.29/GRSG/2017/16 on the agenda as a reference document. The secretariat was requested, in the absence of a revised proposal by the task force, to circulate GRSG-113-18 with an official symbol.

112th GRSG session (24-28 Apr 2017)

GRSG-112-31

GRSG-112-32

25. Reporting on a severe incident which happened in 2014 (GRSG-112-31), the expert from Germany proposed a new series of amendments to UN Regulation No. 67 to enhance the specifications for the LPG multi-valve. The experts from Italy, the Netherlands and Poland confirmed such risks and endorsed the need to adopt such new provisions. The expert from Germany volunteered to submit an official document for consideration at the next GRSG sessions, including transitional provisions.

26. The expert from Germany proposed to also strengthen the requirements in UN Regulation No. 67 for the installation and inspection of LPG-containers and their accessories (GRSG-112-32). GRSG welcomed the proposal. The Chair invited all GRSG experts to send their comments, in due time, to the expert from Germany and proposed to resume consideration of this subject at the next session of GRSG on the basis of combined (see para. 25. above) proposal.

32. Reporting on some cases of structural failures of cylinders in his country, the expert from Italy proposed amendments to Annex 3A on the test requirements for the periodic requalification of cylinders (GRSG-112-28). The expert from Finland stated that these test requirements on periodical inspections of CNG/LNG vehicles in use were only recommendations to be taken into account during the type approval procedure of a new type of vehicle. GRSG noted that Contracting Parties were used to perform on their national level the periodical technical inspections in different ways. Referring to GRSG-112-32 presented under agenda item 7 (see para. 26 above), the expert from Germany introduced GRSG-112-33 proposing to also strengthen the requirements in UN Regulation No. 110 for the installation on vehicles of CNG-cylinders, LNG-tanks and their accessories as well as for their subsequent inspection of without the need of disassembling the containers.

33. GRSG noted general support on the proposals. The Chair invited all GRSG experts to send their comments, in due time, to the experts from Germany and Italy. GRSG agreed to resume consideration of this subject at its next session on the basis of official documents, prepared by Germany and Italy, taking into account the comments received.

UN R67