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Influence Parameters on Headlamp Performance in Rating Systems and Reality
Technical Paper
2017-01-1359
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Headlamp performance has changed in the last 20 years significantly. Sealed beam lamps were replaced by VHAD, VOR and VOL types, but still the optical input in terms of tungsten filament based luminous flux remained more stable. With Xenon discharge lamps and now LED the performance of a headlamp may vary strongly and thus the optical performance. Various rating systems have been developed to assess the quality of lamps and light distribution, some based on laboratory based data, some based on static or dynamic street test drives with online measurements and assessments. Basic interest is to understand the performance of the light for a real driver. This article will discuss the influence parameters on achieving a repeatable and precise rating as well as the outer influence that creates glare and varying seeing distance. Mostly mechanical headlamp and car conditioning will influence the result as well as human factors like aiming precision and aiming tolerances.
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Authors
Citation
Hamm, M., "Influence Parameters on Headlamp Performance in Rating Systems and Reality," SAE Technical Paper 2017-01-1359, 2017, https://doi.org/10.4271/2017-01-1359.Data Sets - Support Documents
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References
- Hershman , L. L. The U.S. new car assessment program (NCAP): past, present and future The 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Amsterdam, The Netherlands June 4 - 7, 2001 http://www-nrd.nhtsa.dot.gov/pdf/esv/esv17/Proceed/00245.pdf
- GTB (Groupe de Travail de Bruxelles) Coordination of Automotive Visibility and Glare Studies, GTB Document No. CE-5001 71st GRE 31 Geneva 2014 https://www.unece.org/fileadmin/DAM/trans/doc/2014/wp29gre/GRE-71-32e.pdf
- SAE Ground Vehicle Standard Light Inspection Code SAE J599 Aug. 2015
- FMVSS108 Amendment Federal Register 62 46 10710ff March 10 1997 https://www.gpo.gov/fdsys/pkg/FR-1997-03-10/pdf/97-5723.pdf
- Poynter , D. ; Plummer , R.D. ; Donohoe , R.J. Automobile headlamp alignment by visual aim: Photometric correlates of the visual cutoff and aim variability Lighting Res. Technol. 24 3 137 142 1992
- Sivak , M. ; Flannagan , M. ; Chandra , D. ; Gellatly , A.W. Visual Aiming of European and U.S. Low Beam Headlamps Ann Arbor 1991
- Greill , A. ; Eichinger , B. ; Kriener , W. Appropriate Accuracy of LED Headlight Adjustment Processes VDI Optische Technologien in der Fahrzeugechnik Karlsruhe 2016
- Federal Motor Vehicle Standard §571.108 http://www.ecfr.gov/cgi-bin/text-idx?node=se49.6.571_1108
- National Highway Traffic Safety Administration (NHTSA) Request for Comments (RFC), Docket NHTSA-2015-0119 www.nhtsa.gov/images/5stars/nhtsa-5stars-rfc-notice.pdf
- Huhn , W. Anforderungen an eine adaptive Lichtverteilung für Kraftfahrzeugscheinwerfer im Rahmen der ECE Regelungen Dissertation Technical University Darmstadt, Germany 1999
- Damasky , J. Lichttechnische Anforderungen an Kraftfahrzeugscheinwerfer Dissertation Technical University Darmstadt, Germany 1995
- Kelz , S. Ursachen für fehlerhafte Scheinwerfereinstellung und Erstellung eines Optimierungskonzeptes B.Sc. Thesis University of Applied Science Ingolstadt, Germany 2013
- TUEV Sued Gruppe: Report 2015 Die haeufigsten Maengel http://www.tuev-sued.de/auto-fahrzeuge/tools-services/tuev-report-2015/die-haeufigsten-maengel
- CIE TC-4-45: CIE S 021/E:2011 Vehicle Headlighting Systems Photometric Performance - Method of Assessment http://div4.cie.co.at/?i_ca_id=580