---
_id: '61427'
abstract:
- lang: eng
  text: "The carbon footprint of modern vehicles and their mechatronic systems is
    more\r\nimportant than ever. Research by the publicly funded Nalyses project and
    the HELLA\r\ncompany shows that the headlamps use phase makes a significant contribution
    to the life\r\ncycle footprint taking into account the current electricity mix
    [1]. Today, functionalities\r\nsuch as adaptive curve light or glare-free high
    beam ensure comfort and safety by\r\nassessing the state of the vehicle and evaluating
    the driving scenario ahead. In future,\r\nthis evaluation will be expanded and
    used to adapt the headlamp to the driving scenario\r\nin such a way that as little
    light as possible is emitted, but as much light as necessary. In\r\norder to achieve
    this goal, an overall evaluation of the regulatory compliant energy\r\nsaving
    potential is crucial in a first step and leads to constraints for a dynamic adaption\r\nwhile
    driving. In this paper, the potential is illustrated by evaluating UNECE Regulation\r\nNo.
    149 and optimizing luminous intensity distributions. Depending on the different\r\nresolutions
    of matrix LED headlamps, this approach can result in a significantly lower\r\nluminous
    flux. On the other hand, the results are point-like distributions that raise the\r\nquestion
    of whether the regulation still provides for sensible minimum requirements for\r\nmodern
    matrix LED headlamps. The results are further presented in a simulated virtual\r\nenvironment
    with regard to the resulting luminance in different driving scenarios. We\r\nthen
    present an approach to integrate regulatory requirements into a control algorithm
    by\r\nsetting optimization constraints and saturating the control. Finally, we
    classify the found\r\nluminous intensity distributions qualitatively according
    to common lighting criteria. In summary, although the investigated minimum distributions
    are by no means desirable\r\nfor drivers themselves, they form the basis on which
    energy-saving distributions for\r\nilluminated areas and twilight scenarios could
    be adaptively controlled in the future."
author:
- first_name: Niklas
  full_name: Fittkau, Niklas
  id: '69890'
  last_name: Fittkau
  orcid: 0009-0007-1281-4465
- first_name: Leon
  full_name: Bußemas, Leon
  id: '51118'
  last_name: Bußemas
- first_name: Kevin
  full_name: Malena, Kevin
  id: '36303'
  last_name: Malena
  orcid: 0000-0003-1183-4679
- first_name: Sandra
  full_name: Gausemeier, Sandra
  id: '17793'
  last_name: Gausemeier
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  id: '552'
  last_name: Trächtler
citation:
  ama: 'Fittkau N, Bußemas L, Malena K, Gausemeier S, Trächtler A. Regulatory-compliant
    energy-saving potential for the passing beam of matrix LED headlamps. In: <i>Proceedings
    of the 16th International Symposium on Automotive Lighting 2025</i>. ; 2025. doi:<a
    href="https://doi.org/10.26083/tuprints-00030840">10.26083/tuprints-00030840</a>'
  apa: Fittkau, N., Bußemas, L., Malena, K., Gausemeier, S., &#38; Trächtler, A. (2025).
    Regulatory-compliant energy-saving potential for the passing beam of matrix LED
    headlamps. <i>Proceedings of the 16th International Symposium on Automotive Lighting
    2025</i>. 16th International Symposium on Automotive Lighting, Darmstadt. <a href="https://doi.org/10.26083/tuprints-00030840">https://doi.org/10.26083/tuprints-00030840</a>
  bibtex: '@inproceedings{Fittkau_Bußemas_Malena_Gausemeier_Trächtler_2025, place={Darmstadt},
    title={Regulatory-compliant energy-saving potential for the passing beam of matrix
    LED headlamps}, DOI={<a href="https://doi.org/10.26083/tuprints-00030840">10.26083/tuprints-00030840</a>},
    booktitle={Proceedings of the 16th International Symposium on Automotive Lighting
    2025}, author={Fittkau, Niklas and Bußemas, Leon and Malena, Kevin and Gausemeier,
    Sandra and Trächtler, Ansgar}, year={2025} }'
  chicago: Fittkau, Niklas, Leon Bußemas, Kevin Malena, Sandra Gausemeier, and Ansgar
    Trächtler. “Regulatory-Compliant Energy-Saving Potential for the Passing Beam
    of Matrix LED Headlamps.” In <i>Proceedings of the 16th International Symposium
    on Automotive Lighting 2025</i>. Darmstadt, 2025. <a href="https://doi.org/10.26083/tuprints-00030840">https://doi.org/10.26083/tuprints-00030840</a>.
  ieee: 'N. Fittkau, L. Bußemas, K. Malena, S. Gausemeier, and A. Trächtler, “Regulatory-compliant
    energy-saving potential for the passing beam of matrix LED headlamps,” presented
    at the 16th International Symposium on Automotive Lighting, Darmstadt, 2025, doi:
    <a href="https://doi.org/10.26083/tuprints-00030840">10.26083/tuprints-00030840</a>.'
  mla: Fittkau, Niklas, et al. “Regulatory-Compliant Energy-Saving Potential for the
    Passing Beam of Matrix LED Headlamps.” <i>Proceedings of the 16th International
    Symposium on Automotive Lighting 2025</i>, 2025, doi:<a href="https://doi.org/10.26083/tuprints-00030840">10.26083/tuprints-00030840</a>.
  short: 'N. Fittkau, L. Bußemas, K. Malena, S. Gausemeier, A. Trächtler, in: Proceedings
    of the 16th International Symposium on Automotive Lighting 2025, Darmstadt, 2025.'
conference:
  end_date: 2025-09-24
  location: Darmstadt
  name: 16th International Symposium on Automotive Lighting
  start_date: 2025-09-22
date_created: 2025-09-24T08:56:38Z
date_updated: 2025-12-12T12:47:58Z
department:
- _id: '153'
doi: 10.26083/tuprints-00030840
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://tuprints.ulb.tu-darmstadt.de/30825/
oa: '1'
place: Darmstadt
project:
- _id: '693'
  name: Nachhaltigkeitsoptimiertes Life Cycle Assessment technologisch hochkomplexer
    Produkte am Beispiel Automobilbeleuchtung
publication: Proceedings of the 16th International Symposium on Automotive Lighting
  2025
status: public
title: Regulatory-compliant energy-saving potential for the passing beam of matrix
  LED headlamps
type: conference
user_id: '69890'
year: '2025'
...