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ECE/TRANS/WP.29/GRE/2013/57 Alternative aiming/leveling

This informal document discusses the current design-oriented requirement for automatic levelling in LED road illumination systems. It explores the impact of visibility distance, glare reduction, and the need for information for drivers. The document also provides comments on the proposed initial aiming for headlamps.

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ECE/TRANS/WP.29/GRE/2013/57 Alternative aiming/leveling

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  1. ECE/TRANS/WP.29/GRE/2013/57Alternative aiming/leveling Informal documentGRE-70-41 (70th GRE, 21-23 October 2013, agenda item 4(b)) Tomasz Targosinski Ph. D. Eng Poland 70 GRE 22 October 2013

  2. Informal document No. GRE-67-33 (65th GRE, 28-31 March 2011, agenda item 5(d))

  3. - 2000 lm (artificial arbitrary criterion)- Gas discharge (35W, 25W?)- LED AUTOMATIC LEVELLING AT PRESENT - DESIGN ORIENTED REQUIREMENT No relation to performance

  4. REGULATORY (Reg.48) VISIBILITY DISTANCE [m]

  5. Real sizes and distances 200m 100m 20m 0m Possible road illumination distance in Reg 48.

  6. 100m 75m 50m

  7. Informal document No. GRE-65-30 (65th GRE, 28-31 March 2011, agenda item 5(d))

  8. BASE FOR REAL HUMAN DECISIONS IN MOST SITUATIONS IMAGINATION BELIEF FEELINGS EMOTIONS INTERESTS SCIENTIFIC CONFIRMED REAL VERIFIABLE REPEATABLE RATIONALITY IS IN MINORITY

  9. MY BOSS WHO IS RESPONSIBLE FOR ROAD SAFETY ?(in lighting domain) ADMINISTRATIVE SERVICE LAW CREATORS (GTB, GRE, WP29, EU) MANUFACTURERS GOVERNMENT TECHNICAL SERVICE SERVICE DRIVER Me PTI

  10. GLARE PROTECTION Glare reduction by proposal GRE 2012/21 Proposal reduce glare comparing present situation for most vehicles, especially cars

  11. HOW WILL WORK GRE/2012/21 1. GUARANTED VISIBILITY DISTANCE >[75m] ? YES NO 2. GUARANTED GLARE PROTECTION ? (ACCORDING PRESENT HEADLAMPS REG.) 2. GUARANTED GLARE PROTECTION ? (PRESENT HEADLAMPS REG.) NO NO OBLIGATORY AUTOMATIC LEVELLING (German proposal) YES YES 3. INFORMATION FOR DRIVER (OPTIONAL) 3. INFORMATION FOR DRIVER A (optimal) B(outside GRE/2012/21 ) C(possible)

  12. Informal document No. GRE-68-20 (68th GRE, 15-18 October 2012, agenda item 4(c)(i)) Comments on GRE/2012/27(Lighting & Signalling WG) Headlamp Initial Aiming October 2012

  13. Proposed Initial nominal aim to correspond to 75m theoretical range • Under proposal, What for are needed overlaps? • No overlap between height bands • Mostheadlamps would be aimed higher than at present • It will depend on manufacturers decision • and choice of range of amended Reg.48 • (30 to100m or 50 to 100m) • It will be safety oriented advantage and goal of amendment because of longer average road illumination distance. • Risks increased glare. • Not true. Decreased glare • comparing present state.

  14. ECE/TRANS/WP.29/GRE/2013/57 GOOD, COMBINED PROPOSAL true „PERFORMANCE ORIENTED” OICA NEARLY AS TODAY BUT „PERFORMANCE ORIENTED” ROAD ILLUMINATION DISTANCE AS CRITERION, NO RESTRICTIONS MANUFACTURER CHOICE NO 2000 lm NO LIGHT SOURCE CRITERION AS TODAY: ARTIFICIAL 2000lm „DESIGN ORIENTED” OR MANUFACTURER CHOICE

  15. THANK YOU FOR YOUR ATTENTION

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