[{"project":[{"name":"Nachhaltigkeitsoptimiertes Life Cycle Assessment technologisch hochkomplexer Produkte am Beispiel Automobilbeleuchtung","_id":"693"}],"abstract":[{"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.","lang":"eng"}],"citation":{"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>.","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>","short":"N. Fittkau, L. Bußemas, K. Malena, S. Gausemeier, A. Trächtler, in: Proceedings of the 16th International Symposium on Automotive Lighting 2025, Darmstadt, 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>.","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>.","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} }","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>"},"publication":"Proceedings of the 16th International Symposium on Automotive Lighting 2025","department":[{"_id":"153"}],"oa":"1","type":"conference","date_created":"2025-09-24T08:56:38Z","place":"Darmstadt","date_updated":"2025-12-12T12:47:58Z","author":[{"first_name":"Niklas","orcid":"0009-0007-1281-4465","last_name":"Fittkau","full_name":"Fittkau, Niklas","id":"69890"},{"full_name":"Bußemas, Leon","first_name":"Leon","last_name":"Bußemas","id":"51118"},{"full_name":"Malena, Kevin","first_name":"Kevin","orcid":"0000-0003-1183-4679","last_name":"Malena","id":"36303"},{"id":"17793","full_name":"Gausemeier, Sandra","last_name":"Gausemeier","first_name":"Sandra"},{"full_name":"Trächtler, Ansgar","first_name":"Ansgar","last_name":"Trächtler","id":"552"}],"conference":{"end_date":"2025-09-24","location":"Darmstadt","start_date":"2025-09-22","name":"16th International Symposium on Automotive Lighting"},"year":"2025","status":"public","title":"Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps","user_id":"69890","doi":"10.26083/tuprints-00030840","_id":"61427","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://tuprints.ulb.tu-darmstadt.de/30825/"}]}]