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| Document Title | Proposal for Supplement 7 to the 01 series of amendments to Regulation No. 112 | ||||||||
| Reference Number | GRE-76-04/Rev.1 | ||||||||
| Date |
25 Oct 2016
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| Summary | 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. | ||||||||
| Source(s) | GTB | ||||||||
| Rulemaking Area(s) | UN R112 Asymmetrical Beam Headlamps | ||||||||
| Proposal Status | Informal GR review | ||||||||
| Meeting(s) | |||||||||
| Related Documents | |||||||||
| GRE/2016/34 | Proposal for a collective amendment to Regulations Nos. 19, 98, 112, 113 and 123 (superseded) | ||||||||
| GRE/2015/22 | Proposal for a Supplement to the 01 series of amendments to Regulation No. 112 (superseded) | ||||||||
| GRE-73-26 | Conditions on the luminous flux of light sources in Regulations Nos. 112 and 123 | ||||||||
| Downloads | |||||||||
| UNECE server | .pdf format | .docx format | |||||||
| Excerpts from session reports related to this document | |||||||||
| GRE | Session 76 | 25-28 Oct 2016 |
16. The expert from GTB proposed to introduce into Regulations Nos. 19, 98, 112, 113 and 123 provisions for standardized replaceable light emitting diode (LED) light sources approved according to Regulation No. 128 (ECE/TRANS/WP.29/GRE/2016/34). He also outlined the upcoming amendment proposals to Regulation No. 128, including the introduction of ‘thermal grade’ as a new characteristic of LED light sources (GRE-76-13). The experts from France, Germany, Italy and UK indicated the far-reaching character and scale of the proposed amendments, and the need to study them in detail. They also expressed a preference for considering the proposed amendments simultaneously with proposals for amendments to Regulation No. 128. Some experts pointed out that the thermal behaviour of LEDs could depend on their installation and the temperature in the engine compartment, and were of the view that the provisions of Regulations Nos. 48 and 85 should be taken into account as well. GRE invited experts to consider these issues before the next session. 30. The expert of GTB presented the results of their study of minimum levels of flux projected in critical zones of the passing beam distribution of a H4 halogen reflector headlamp and a representative LED headlamp (GRE-76-25). Based on these results, he proposed to remove the design-specific requirement of a minimum objective flux (1,000 lm) for LED and halogen light sources and to replace it with a technology-neutral and performance-based requirement (GRE-76-04-Rev.1). The proposal received comments by the experts from France, Germany, Italy, Poland, UK, EC, OICA. As there was no unequivocal support to the proposal, GRE decided to keep it on the agenda of the next session and to pass it to IWG SLR at a later stage. |
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