This agenda item relates to UN R48 Installation of Lighting.

GRE will address a proposal which was prepared by IWG SLR with the intention to introduce new requirements for headlamp levelling, in particular for the vertical inclination in relation to the dipped-beam headlamp mounting height.

GRE is invited to consider a revised proposal for a new series of amendments prepared by the experts from the Special Interest Group that defines the switching conditions of dipped-beam and Daytime Running Lamps (DRL) and the variable intensity of rear lamps in conjunction with traffic conditions.

GRE may wish to consider additional proposals for UN R48.

Working Party on Lighting and Light-signalling | Session 82 | 22-25 Oct 2019

28. The expert from the Special Interest Group (SIG) introduced a new draft series of amendments that defines the switching conditions of dipped-beam and Daytime Running Lamps (DRL) and the variable intensity of rear lamps in conjunction with traffic conditions (ECE/TRANS/WP.29/GRE/2019/20 and GRE-82-07). The experts from Japan and EC proposed to reduce the speed threshold in paragraph 6.2.7.5.1. from 25 to 15 km/h (GRE-82-21). GRE supported this modification.

29. The expert of OICA proposed a new version of paragraph 6.19.7.4. (GRE-82-35-Rev.1) on switching of the rear position lamps together with DRLs. Some experts were of the view that the rear position lamps “shall be on” (i.e. always on) when DRLs are on, while others expressed preference to “may be on”, for the sake of reducing the energy consumption. Having extensively discussed this issue, GRE agreed that the rear position lamps “shall” be on in case of adverse weather conditions, however, the list of such conditions would need to be improved. GRE also noted that the transitional provisions in ECE/TRANS/WP.29/GRE/2019/20 had to be clarified. GRE invited SIG to consider the comments received and to submit a revised document to the next session.

31. The expert from IWG SLR recalled the previous discussions on the aiming diagram in paragraph 6.2.6.1.2. (ECE/TRANS/WP.29/GRE/81, para. 10 and Annex II) and presented GRE-82-25, which had been prepared in line with the GRE request. The expert from Poland proposed a revised diagram (GRE-82-43). For the diagram in GRE-82-25, the experts from Japan, Poland and the United Kingdom expressed their preference to maintain the 2000 lm criteria for automatic levelling and headlamp cleaning. The experts from Germany and the United Kingdom pointed out the need to consider the aiming tolerance for the purposes of, respectively, Periodic Technical Inspections (PTI) and Conformity of Production (CoP). GRE requested IWG SLR to consider the above elements and to prepare a revised document for the next session of GRE.

Working Party on Lighting and Light-signalling | Session 83 | 19-23 Oct 2020

28. The experts from Germany briefed GRE on the outcome of a study on dynamic levelling devices to prevent headlamp glare (GRE-83-03 and Add.1).

29. Based on a proposal of IWG SLR, GRE continued its deliberations for preparing a new series of amendments to UN Regulation No. 48 with new requirements for headlamp aiming and automatic levelling (ECE/TRANS/WP.29/GRE/2020/8/Rev.1). The expert from Poland held the view that the justification part contained mistakes and inconsistencies and recalled his earlier proposals on the subject (GRE-83-41). Several experts expressed their support to the IWG SLR proposal.

30. The expert from OICA proposed to keep an option of manual levelling (ECE/TRANS/WP.29/GRE/2020/23 and GRE-83-31). Some experts supported this option, while others were not in favour.

31. In the absence of a consensus, GRE stressed the need to finalize the issue as soon as possible and requested IWG SLR to take into account the comments made and to prepare a revised working document for the next session, based on the following principles:

  • the aiming diagram agreed at the eighty-first session of GRE (Annex II to ECE/TRANS/ WP.29/GRE/81);
  • automatic levelling;
  • manual levelling, only if a consensus is reached within IWG SLR.

32. The expert from Poland did not agree to that conclusion.

33. GRE instructed IWG SLR to organize a separate meeting on this issue and encouraged all experts of Contracting Parties to participate.

34. The expert from the Special Interest Group (SIG) presented a proposal for another new draft series of amendments to UN Regulation No. 48 concerning switching conditions of various lamps and the variable intensity of rear lamps in conjunction with traffic conditions (ECE/TRANS/WP.29/GRE/2020/14). The expert from OICA proposed further modifications (GRE-83-32). Following an in-depth discussion, GRE invited SIG to take into account various comments and to submit a revised document to the next session.

Documentation
GRE-83-03 | Requirements for dynamic levelling devices to prevent headlamp glare blinding oncoming road users
GRE-83-03/Add.1 | Presentation of the study on dynamic levelling in GRE-83-03 (Germany)
GRE-83-31 | UN R48: Revised proposal for a new [0x] series of amendments (OICA)
GRE-83-32 | UN R48: Proposal to amend document GRE/2020/14 (OICA)
GRE-83-41 | UN R48: Comments on document GRE/2020/8/Rev.1 (Poland)
GRE-83-45 | UN R48: Proposal for a new series of amendments (Japan)
GRE/2020/8/Rev.1 | UN R48: Proposal for a new series of amendments
GRE/2020/14 | UN R48: Proposal for a new 08 series of amendments
GRE/2020/23 | UN R48: Proposal for a Supplement to the 06 and 07 series of amendments (OICA)
GRE/2020/24 | UN R48: Proposal for a corrigendum to the 06 and 07 series of amendments