International Automotive Lighting and Light-signalling Expert Group
670 documents
30 Oct 2013 Status report of the GTB Light Sources working group (GTB) GRE-70-47 2013-10-30 GTB
25 Mar 2014 GTB Study Visibility and Glare (GTB) GRE-71-15 2014-03-25 Status report on efforts to resolve concerns related to automatic headlamp leveling provisions and their impact on visibility and on-coming driver glare. GTB
24 Mar 2014 Simplification of UN Lighting and Light-Signalling Regulations: GTB opinion (GTB) GRE-71-17 2014-03-24 GTB white paper on priorities and objectives for the simplification of lighting regulations, especially regarding reduction of the current burdens associated with the necessity of collective amendments in the development of these regulations and the longer-term difficulties to be overcome in restructuring these regulations and their legal framework. GTB
28 Mar 2014 Simplification of Lighting and Light-signalling Regulations: Thoughts on a “new approach” (GTB) GRE-71-24 2014-03-28 GTB discussion paper to focus attention on defining the problem(s) to be resolved through a the simplification of UN lighting regulations. GTB
3 Apr 2014 GTB Task Force: Coordination of Automotive Visibility and Glare Studies (GTB) GRE-71-32 2014-04-03 GTB
9 Apr 2014 GTB Working Group on Signal Lighting: Status Report (GTB) GRE-71-33 2014-04-09 GTB
9 Apr 2014 GTB Working Group on Light Sources: Status Report (GTB) GRE-71-34 2014-04-09 GTB
9 Apr 2014 GTB Working Group on Installation: Status Report (GTB) GRE-71-35 2014-04-09 GTB
9 Apr 2014 Triangular Retro Reflector: Need for GRE advice (GTB) GRE-71-36 2014-04-09 Brief presentation raising question over the necessity to have triangular reflectors on the rear of large trailers and seeking greater flexibility in such rear reflectors. GTB
17 Oct 2014 Suggestion on how to implement the outcome of the GTB Visibility and Glare Study in Regulation No. 48 (GTB) GRE-72-07 2014-10-17 During the 71st session of GRE, the experts from GTB presented the outcome of a study on visibility and glare of automotive low beam headlamps; see informal document GRE-71-32. The study concentrated on levelling in relation to load. The major objectives of the study were to improve the understanding of different factors that influence visibility and glare and to identify results of the study that might reveal alternatives for automatic static levelling. The deciding factors in headlamp glare have been determined to be the vehicle pitch angle, loading conditions and initial headlamp aim. Therefore, this proposal looks at replacing the light source technology and the light source 2,000 lm criterion in UN Regulation No. 48 as criteria for the requirement for automatic levelling with performance requirements based upon these deciding factors. GTB
17 Oct 2014 Proposal for Supplement 17 to the original series of Regulation No. 38 (GTB) GRE-72-09 2014-10-17 This proposal would correct an error introduced into the regulation through Supplement 16. GTB
17 Oct 2014 Proposal for Supplement 6 to the 06 series of amendments to Regulation No. 48 (GTB) GRE-72-10 2014-10-17 Front fog lamps may be reciprocally incorporated with the main beam and in some cases, it is required to switch off the front fog lamp when the main beam is operated to avoid overheating of the device. In this case, Regulation No. 19 requires a “/” in the approval marking. However, the current text in paragraph 6.3.7 of Regulation No. 48 requires that “it shall be possible to switch the front fog lamps ON and OFF independently of the main-beam headlamps”. This proposal is intended to remove the conflict between the texts of the two regulations. This proposal supersedes and replaces document GRE/2014/22 and has been prepared to remove ambiguities identified in the previous proposal. GTB
17 Oct 2014 Proposal for Supplement 24 to the 02 series of Regulation No. 7 (GTB) GRE-72-11 2014-10-17 Proposal to correct an error introduced by Supplement 21 to the 02 series of Regulation No. 7 (document WP29/2012/65). Supplement 21 introduced provisions for the use of light-emitting diode (LED) light sources and corrected the provisions concerning approval markings. GTB
29 Oct 2014 GTB Working Group on Light Sources: Status Report (GTB) GRE-72-27 2014-10-29 GTB
29 Oct 2014 GTB Working Group on Installation: Status Report (GTB) GRE-72-28 2014-10-29 GTB
29 Oct 2014 GTB Task Force on Conformity of Production: Status Report (GTB) GRE-72-29 2014-10-29 GTB
29 Oct 2014 GTB Mirror Working Group SAE: Status Report (GTB) GRE-72-30 2014-10-29 GTB
9 Apr 2015 Proposal to introduce new criteria on the automatic levelling of headlamps based on the GTB glare and visibility studies (GTB and OICA) GRE-73-06 2015-04-09 GTB OICA
17 Apr 2015 Regulation No. 48: Rear direction indicator lamp and stop lamp separation (GTB) GRE-73-15 2015-04-17 Supplemental presentation in support of document GRE/2015/3: Proposal for Supplement 9 to the 05 series of amendments and Supplement 7 to the 06 series of amendments to Regulation No. 48. GTB
21 Apr 2015 Activities of the GTB Working Group on Light Sources (GTB) GRE-73-24 2015-04-21 Presentation on activities, especially LED retrofit study. GTB
21 Sep 2015 Consolidation of the 03 series of amendments to Regulation No. 48 (GTB) GRE-74-08 2015-09-21 In November 2013, the GTB proposal for the simplification of the transitional provisions of Regulation No.48 was adopted by WP29 at its 161st session as Supplement 3 to the 06 series. Associated with this proposal was a decision that the secretariat would produce full consolidations of the 04 /05/06 series and these were introduced as Revisions 7, 8 and 9 respectively. At that time, it was also agreed that GTB would produce a consolidation of the 03 series that would be posted on the UNECE Website for reference purposes. It was considered that a consolidation of the final (frozen) state of the 03 series would be useful as a reference for the vehicle manufacturers who may continue to apply for extensions to the original type approvals according to the 03 series. However, with the development of IWVTA and the revision of the 1958 Agreement, this consolidation may have value as “a version of a UN Regulation” as defined in the draft Revision 3. This document is a consolidation produced by the experts of GTB and incorporates all valid text up to, and including, Supplement 5 to the 03 series of amendments (Date of entry into force: 09 December 2010). This consolidation is submitted to GRE for verification and for possible introduction to the UNECE website. GTB
7 Apr 2016 Report of the GTB Task Force on Conformity of Production (GTB) GRE-75-15 2016-04-07 GTB
25 Oct 2016 Proposal for Supplement 7 to the 01 series of amendments to Regulation No. 112 (GTB) GRE-76-04/Rev.1 2016-10-25 Proposal to update document GRE/2016/34. At the 73rd GRE session, France proposed to delete a design restrictive requirement (GRE/2015/22 and GRE-73-26). This proposal received comments from Germany and the Netherlands. Poland suggested a different approach on this issue (GRE-73-21). The Chair invited France, Germany, Netherlands, Poland, CLEPA and IEC to prepare a revised proposal for the next session. Based upon the approach proposed in GRE/2015/22 and GRE-73-26, GTB has investigated the specification of minimum levels of flux projected in critical zones of the passing beam distribution. This approach offers a technology-neutral performance based requirement. The result of the GTB study is to propose minimum projected flux requirements in two zones: a) 15°D-1°U/30°L-30°R to ensure overall adequate illumination of the road and b) 3.5°D-1°U/30°L-30°R to ensure sufficient range. GTB
18 Oct 2016 Correction to document GRE/2016/31 (GTB) GRE-76-07 2016-10-18 Correction to the proposal for a collective amendment to Regulations Nos. 7, 23, 38, 48, 77, 91 and 119. Since the cornering lamp projects a beam to the left and right of the reference axis, it is not relevant to check the photometric values in the reference axis (HV). Therefore, the test point at 2.5°D, 45°L or R shall be used. GTB
25 Oct 2016 Upcoming changes to Regulation No. 128 related to LED Light Sources for Forward Lighting Applications (GTB) GRE-76-13 2016-10-25 The collective amendment presented in GRE/2016/34 extends the usage of LED light sources of UN R128 to front lighting Regulations Nos. 19, 98, 112, 113 and 123. The introduction of LED light source categories under UN R128 for forward lighting applications (front fog, low beam, high beam, AFS) is planned for 2017. This presentation explains the plans, timeline, and dependencies GTB proposes to address through the collective amendment, especially within the context of the simplification of lighting regulations program. GTB
26 Oct 2016 Editorial improvement to ECE/TRANS/GRE/2016/29 (GTB) GRE-76-14/Rev.1 2016-10-26 Editorial improvements to the proposal for Supplement 8 to the 01 series of amendments to UN R123. GTB
27 Oct 2016 Revision of document ECE/TRANS/WP.29/GRE/2016/31 (GTB) GRE-76-22/Rev.1 2016-10-27 Revised proposal (removing the section on UN R48 and incorporating corrections noted in document GRE-76-07) to refine the requirements for lamps equipped with several light sources, including in systems fitted with an operating tell-tale that indicates the failure of any one of these light sources. In the case of failure of any one light source in a single lamp containing more than one light source, either the light intensity must comply with the minimum intensity required in the table of standard light distribution in space or, for lamps used in systems where a tell-tale indicates the failure of any one of the light sources, the light intensity in the axis of reference must be at least 50 per cent of the minimum intensity required. This collective amendment addresses Regulations Nos. 7, 23, 38, 77, 91 and 119. The proposals concerning UN R48 will be resubmitted for consideration during the 77th GRE session. GTB
2 Nov 2016 Simplification of Lighting and Light-Signalling Regulations: application of the Unique Identifier (UI) (GTB) GRE-76-24/Rev.1 2016-11-02 GTB
31 Oct 2016 Night demonstration: H4 Halogen Reflector headlamp versus representative LED headlamp (GTB) GRE-76-25 2016-10-31 GTB
20 Jan 2017 Equivalence criteria for LED substitute light source categories as equivalents for corresponding filament light source categories (GTB) GRE-77-02 2017-01-20 GTB
20 Jan 2017 Substitute light sources: equivalence reports for C5W, PY21W, and R5W (GTB) GRE-77-03 2017-01-20 GTB
20 Jan 2017 GTB guidelines for introduction and evaluation of LED light source categories intended for forward lighting applications (GTB) GRE-77-04 2017-01-20 GTB
17 Mar 2017 Request for guidance concerning proposals for road llumination devices, lighti-signalling devices, and COP for adaptive front lighting (GTB) GRE-77-07 2017-03-17 GTB
30 Mar 2017 UN R123: Proposal to amend GRE/2016/28 (Supplement 8 to the 01 series of amendments to UN R123) (GTB) GRE-77-11 2017-03-30 Proposal to clarify that the decision table refers to the worst case situation and to correct a cross-reference. GTB
30 Mar 2017 Revision of GRE/2017/5 (Proposal for Supplement 7 to the original version of Regulation No. 128) (GTB) GRE-77-12 2017-03-30 Updated proposal to introduce requirements and test specifications to light emitting diode (LED) forward lighting light sources. GTB
30 Mar 2017 Revised proposal for amendments to the Consolidated Resolution on the common specification of light source categories (Revision of GRE/2017/6) (GTB) GRE-77-13 2017-03-30 Revised proposal to introduce a new light emitting diode (LED) forward lighting light source category L1. The proposal is part of a package which includes amendments to Regulation No. 128. GTB
30 Mar 2017 Incorporation of LED light sources in the new Regulation for Road Illumination Devices (RID) (GTB) GRE-77-14 2017-03-30 Discussion paper concerning modifications to the draft proposal for a new UN Regulation on road illumination devices in order to achieve the aims of GRE/2016/34 which proposed amendments to Regulations 19, 98, 112, 113 and 123. GTB
30 Mar 2017 Proposal to introduce requirements for the use of LED substitute light sources in the new Regulation for “Light-signalling devices” (GTB) GRE-77-15 2017-03-30 Proposal to introduce the following changes into the draft new Regulation on light-signalling devices:<ol><li>Use of LED substitute light source(s) is allowed and does not constitute a change of the lamp type. However, lamp performances shall be tested during type approval also with the LED substitute light source. Approval of the lamp using filament light source(s) is a prerequisite for approval of the lamp using LED substitute light source(s).</li><li>COP testing of the lamp is required with an (etalon) filament light source only, because the LED substitute is the counterpart light source of the filament light source, resulting in equivalent photometrical lamp performance. The quality i.e. the equivalence to the filament light source, is controlled in R128.</li><li>Use of LED substitute light sources is at the discretion of the applicant, who shall declare this use, if any, to the Approval Authorities at the time of application for the first lamp approval or subsequent extension of approval issued for the version using the LED substitute light source.</li><li>The use of LED substitute light source(s) in a certain lamp type shall be indicated on the lamp by marking of the LED substitute light source category, in addition to the marking of the filament light source of which the LED substitute light source is the counterpart.<br/><br/>This marking on the lamp will be used for checking the allowance for use of lamps with LED substitute light sources in application of the Regulation on lamps installation on vehicle.</li><li>In case a lamp with colour filter(s) is approved for using LED substitute light source(s), this lamp shall be marked “G” to indicate that this lamp shall be equipped with LED substitute light source(s) marked “G” for colour and luminous intensity quality reasons.</li><li>The indication of both the filament light source and of its LED counterpart light source, if any, shall be explicitly provided in the communication form.</li></ol> GTB
30 Mar 2017 Updating the requirements of Regulation No. 48 on signalization of light source failure in lamps equipped with multiple light sources (GTB) GRE-77-16 2017-03-30 During October 2016, GRE-76 adopted collective amendments (GRE/2016/31) to align the requirements of lamp regulations (7, 23, 38, 48, 77, 91 and 119) to guarantee the conformity of the lamp in case of any failure or the mandatory indication that a failure had occurred. This means that when a failure indication signal is provided by the lamp, the vehicle shall be equipped with a tell-tale indicating the failure. Thus, amendments were proposed for Regulation No. 48 to specify the modes of displaying the corresponding failure (see GRE/2016/7). Subsequently, some GRE experts requested GTB to clarify the text of its proposal. This proposal amends UN R48 with respect to all lamps affected by GRE/2016/31 to include the failure indication requirement. The proposal does not apply to the failure indication requirements already in UN R 48 prior to the last (76th) GRE session. GTB
3 Apr 2017 Introduction into Regulation 128 of LED Substitute Light Sources (GTB) GRE-77-22 2017-04-03 GTB
3 Oct 2017 Subsitute LED light sources: Differences between proposals in GRE/2017/4 and GRE/2017/22 (GTB) GRE-78-02 2017-10-03 Explanation of changes between the proposal to introduce requirements for light emitting diode (LED) substitute light sources into Regulations Nos. 48, 53, 74 and 86 presented at GRE-77E/2017/4) and the revised proposal (GRE/2017/22) submitted for consideration at GRE-78. GTB
3 Oct 2017 Correction to the proposal for RID LED substitute light source requirements (GRE/2017/14) (GTB) GRE-78-04 2017-10-03 Request to delete the amendment to paragraph 3.3.4.1.1. in the proposal to introduce requirements for the use of light-emitting diode substitute light sources in the new Regulation on Light-Signalling Devices. The proposed amendment was included in the submission by mistake. GTB
3 Oct 2017 Correction of errors and discrepancies in the 05 and 06 series of amendments to Regulation No. 48 (GTB) GRE-78-05 2017-10-03 Proposal to address inconsistencies, clarify text, and correct terminology in Regulation No. 48:<ul><li>para. 5.7.2.1. editorial alignment of text with current terminology</li><li>replace undefined "effective outlet" terminology with defined "apparent surface" reference</li><li>reintroduction of missing reference to "transverse plane" in paras. 5.10.1. and 5.10.2.</li><li>para. 6.2.9. and related subsequent paragraphs to clarify the application of the 2000 lumen criteria</li><li>para. 6.26.9.2. to correct a cross-reference with UN R23.</li></ul> GTB
3 May 2018 Lighting for automated vehicles: discussion on ways forward (GTB) GRE-79-35 2018-05-03 Consideration of how lighting systems may evolve with vehicle automation, particularly in enabling signalling vehicle status and intentions to pedestrians (AVIP: Autonomous Vehicle Interaction with Pedestrians). GTB
3 May 2018 Special light-signalling needs for vehicles equipped with ADS (Automated Driving Systems) (GTB) GRE-79-36 2018-05-03 GTB
25 Oct 2018 Signalling requirements for automated/autonomous vehicles (GTB) GRE-80-16/Rev.1 2018-10-25 GTB
21 Mar 2019 Substitute light sources: equivalence reports for C5W and R5W (GTB) GRE-81-03 2019-03-21 Presentation in support of the proposa to introduce new light emitting diode (LED) substitute light source categories C5W/LEDK and R5W/LED (document GRE/2019/9). GTB
21 Mar 2019 Substitute light sources: equivalence reports for W5W and WY5W (GTB) GRE-81-04 2019-03-21 Presentation in support of the proposal to introduce new LED substitute light source categories W5W/LEDK and WY5W/LED (document GRE/2019/10). GTB
21 Mar 2019 UN R65: Proposal for corrections (GTB) GRE-81-05 2019-03-21 Proposal for corrections to UN Regulation 65 (Special Warning Lamps) based upon Supplement 10 to the original Regulation. A recent review of the content of UN Regulation 65 has revealed some long-standing editorial errors that do not affect the technical requirements but do create confusion. GTB
24 Apr 2019 GTB Activity Report (GTB) GRE-81-23 2019-04-24 GTB
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