GRRF-81-03 | Draft proposal for amendments to Regulation No. 90 (FEMFM)
Description
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Proposal to establish a uniform CoP inspection questionnaire to harmonize conformity of production administrative requirements across Contracting Parties under UN R90. The intent is to increase efficiency and lower costs due to the absence of mutual recognition of CoP certifications among approval authorities.
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Document Reference Number: GRRF-81-03
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Submitted by: FEMFM
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Document date: 12 Jan 16
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Document status: Withdrawn
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GRRF-81-04 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 (CLEPA)
Description
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Updated version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification). This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.
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Document Reference Number: GRRF-81-04
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Submitted by: CLEPA
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Document date: 19 Jan 16
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Document status: Superseded
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Related regulations or topics
Related documents
GRRF/2016/22 | Proposal for an amendment to Regulation No. 90
GRRF-81-04/Rev.1 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22
Related discussions
81st GRRF session (1-5
Feb 2016)
25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
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GRRF-81-04/Rev.1 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 (CLEPA)
Description
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Revised version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4), taking into account comments received during the February 2016 GRRF session. The tables are considered superfluous since replacement parts identical to the original parts must by definition have values identical to the corresponding original parts. This proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm (the common OEM specification). This has been changed from the previous proposal of 0.050 mm. This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.
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Document Reference Number: GRRF-81-04/Rev.1
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Submitted by: CLEPA
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Document date: 05 Feb 16
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Document status: Superseded
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More information
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Related regulations or topics
Related documents
GRRF-81-04 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22
WP.29/2016/58 | Proposal for Supplement 3 to the 02 series of amendments to Regulation No. 90
GRVA-01-12 | UN R90: Proposal for a Supplement to the 02 series of amendments
Related discussions
81st GRRF session (1-5
Feb 2016)
25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
56. Due to the lack of time, GRVA agreed to postpone the consideration of
GRVA-01-12 and the oral report of the expert from Spain on the activities of the Special Interest Group of experts on UN Regulation No. 90 until the January 2019 session.
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GRRF-81-05/Rev.1 | Presentation on carbon-ceramic brakes (CLEPA)
Description
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Presentation highlighting the growing use of carbon-ceramic (CSiC) brake discs and the need to address these products under UN R90 given that the replacement discs regulation is founded upon conventional cast iron technologies.
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Document Reference Number: GRRF-81-05/Rev.1
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Submitted by: CLEPA
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Document date: 19 Jan 16
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81st GRRF session (1-5
Feb 2016)
26. The expert from CLEPA introduced GRRF-81-05-Rev.1 presenting the characteristics of Carbon – Ceramic brakes and proposing to introduce relevant provisions in the Regulation. After discussion, GRRF invited the expert from CLEPA to prepare an informal document proposing amendments to Regulation No. 90 that would include Carbon – Ceramics brakes for consideration at the next GRRF session.
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GRRF-81-27 | Request for clarification of Regulation No. 90
Description
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UN R90 specifies one minimum shear strength requirement for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 via a reference to ISO 6312. However, ISO 6312 specifies test methods for hot and cold shear tests. Therefore, GRRF is requested to clarify whether the strength requirements are for both hot and cold shear.
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Document Reference Number: GRRF-81-27
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Document date: 03 Feb 16
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Document status: Withdrawn
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81st GRRF session (1-5
Feb 2016)
28. The secretariat introduced GRRF-81-27 containing the request for clarifications of paragraph 5.2.2.1.1 in Regulation No. 90. Only one minimum shear strength requirement is specified for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 and it is therefore requested that clarification be provided if these requirements are for both cold and hot shear because ISO 6312 specifies methods for both cold and hot shear tests. GRRF confirmed that Regulation No. 90 requested that the test, according to the mentioned ISO standard, has to be run at ambient temperature only. Several experts noted that a general review of Regulation No. 90 would be useful in order to minimize interpretation issues. Following discussions, the expert from Spain prepared and presented ToR for a SIG of experts to explore whether the issues related to the interpretation of the Regulation were minor and could be managed by GRRF or whether they are significant and would require the establishment of a specific IWG. GRRF agreed with the proposal and endorsed GRRF-81-33.
67. The secretariat introduced GRRF-81-27 under agenda item 6 (see para. 28 above).
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GRRF-81-29 | Presentation supporting ECE/TRANS/WP.29/GRRF/2016/18 (Italy)
Description
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Presentation explaining the proposal to establish requirements for the approval of replacement brake lining assemblies for L-category vehicles.
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Document Reference Number: GRRF-81-29
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Submitted by: Italy
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Document date: 04 Feb 16
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Related regulations or topics
Related documents
GRRF/2016/18 | Proposal for a Supplement to the 02 series of amendments to Regulation No. 90
Related discussions
81st GRRF session (1-5
Feb 2016)
29. The expert from Italy presented GRRF-81-29 introducing ECE/TRANS/WP.29/GRRF/2016/18. The experts from Spain, UK and EC expressed reservations with the aim of the proposal, taking into account the history of the Regulation No. 90 development. They suggested that a more strategic and coordinated approach was chosen to develop the Regulation. GRRF agreed that this proposal may be reviewed by a SIG dealing with Regulation No. 90.
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GRRF-81-33 | Proposed Terms of Reference for a Special Interest Group on UN Regulation No. 90 (Spain and IDIADA)
Description
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Technical services have reported difficulties in interpreting the requirements and procedures incorporated in the 02 series of amendments to UN R90. Therefore, this submission proposes a special interest group to consider whether an informal working group may be needed to revised UN 92.02.
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Document Reference Number: GRRF-81-33
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Submitted by: Spain and IDIADA
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Document date: 05 Feb 16
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Document status: Superseded
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Related regulations or topics
Related discussions
81st GRRF session (1-5
Feb 2016)
28. The secretariat introduced GRRF-81-27 containing the request for clarifications of paragraph 5.2.2.1.1 in Regulation No. 90. Only one minimum shear strength requirement is specified for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 and it is therefore requested that clarification be provided if these requirements are for both cold and hot shear because ISO 6312 specifies methods for both cold and hot shear tests. GRRF confirmed that Regulation No. 90 requested that the test, according to the mentioned ISO standard, has to be run at ambient temperature only. Several experts noted that a general review of Regulation No. 90 would be useful in order to minimize interpretation issues. Following discussions, the expert from Spain prepared and presented ToR for a SIG of experts to explore whether the issues related to the interpretation of the Regulation were minor and could be managed by GRRF or whether they are significant and would require the establishment of a specific IWG. GRRF agreed with the proposal and endorsed GRRF-81-33.
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GRRF/2016/18 | Proposal for a Supplement to the 02 series of amendments to Regulation No. 90 (Italy)
Description
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Proposal to introduce requirements for the approval of replacement brake lining assemblies for L-category vehicles.
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Document Reference Number: GRRF/2016/18
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Submitted by: Italy
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Document date: 23 Nov 15
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Document status: Superseded
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Related documents
GRRF-80-37 | Proposal for Supplement 03 to the 02 series of amendments to Regulation No. 90
GRRF-79-13 | Amendments to document ECE/TRANS/WP.29/GRRF/2014/23/Rev.1
GRRF-81-29 | Presentation supporting ECE/TRANS/WP.29/GRRF/2016/18
GRRF-82-32 | Presentation for the proposal for a Supplement to the 02 series of amendments to Regulation No. 90
WP.29/2018/12 | UN R90: Proposal for Supplement 4 to the 02 series of amendments
Related discussions
81st GRRF session (1-5
Feb 2016)
29. The expert from Italy presented GRRF-81-29 introducing ECE/TRANS/WP.29/GRRF/2016/18. The experts from Spain, UK and EC expressed reservations with the aim of the proposal, taking into account the history of the Regulation No. 90 development. They suggested that a more strategic and coordinated approach was chosen to develop the Regulation. GRRF agreed that this proposal may be reviewed by a SIG dealing with Regulation No. 90.
24. The expert from Italy presented GRRF-79-30, introducing the amendments proposed in ECE/TRANS/WP.29/GRRF/2014/23/Rev.1 as amended by GRR-79-11 and GRRF 79 13 on new requirements for the approval of replacement brake discs for L category vehicles, taking into consideration the latest technologies available in the market.
25. The proposal received some comments. GRRF agreed to revisit this item on the basis of a revised proposal to be submitted by the expert from Italy and taking into account all the comments received
26. The expert from Italy presented GRRF-80-31, introducing ECE/TRANS/WP.29/GRRF/2014/23/Rev.2 and GRRF-80-37 and proposing requirements for the approval of replacement brake discs for L‑category vehicles, taking into consideration the latest technologies available in the market as well as comments received during the previous session of GRRF. GRRF adopted the proposal with the following amendments:
(a) the proposed transitional provisions (paras 12.1 to 12.6) shall be deleted;
(b) The note under Table A15/2.9 shall read: “There are no groups…”
25. The expert from Italy presented GRRF-82-32 introducing ECE/TRANS/WP.29/GRRF/2016/18, which was already presented once, at the February 2016 session. He pointed out that he didn’t receive any feedback or comments on the proposal and that therefore the original proposal was not amended. GRRF adopted the proposal as amended and requested the secretariat to submit this proposal as draft Supplement 4 to the 02 series of amendments to Regulation No. 90 (Replacement braking parts), for consideration and vote at the June 2017 sessions of WP.29 and AC.1.
91. In ECE/TRANS/WP.29/2018/12, on page 4, for “Qp”, read “qp”.
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GRRF/2016/22 | Proposal for an amendment to Regulation No. 90 (CLEPA)
Description
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Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification).
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Document Reference Number: GRRF/2016/22
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Submitted by: CLEPA
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Document date: 23 Nov 15
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Document status: Superseded
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More information
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Related regulations or topics
Related documents
GRRF-80-12 | Proposal for amendments to Regulations No. 90
GRRF-81-04 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22
WP.29/2016/58 | Proposal for Supplement 3 to the 02 series of amendments to Regulation No. 90
GRRF-86-40 | UN R90: Proposal for amendments
Related discussions
81st GRRF session (1-5
Feb 2016)
25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
29. The expert from CLEPA introduced GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert from OICA expressed some concerns. The experts from OICA and CLEPA agreed review the proposal together. GRRF requested the secretariat to distribute the proposal with an official symbol for its February 2016 session.
25. The expert from CLEPA introduced GRRF-86-40 proposing to amend ECE/TRANS/WP.29/2016/58, which was prepared on the basis of three documents with conflicting provisions. The secretariat informed GRRF that ECE/TRANS/WP.29/2016/58 was adopted by AC.1 as Supplement 3 to UN Regulation No. 90 and that the corrections proposed could not be adopted as drafted. The secretariat agreed to prepare a revised version that could potentially be adopted (GRRF-86-40-Rev.1) by AC.1 as a Supplement 4.
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