Статті в журналах: "Automotive signalization and lighting"

1

Neumann, Cornelius. "Automotive lighting." Advanced Optical Technologies 9, no. 6 (December 16, 2020): 331–32. http://dx.doi.org/10.1515/aot-2020-0062.

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2

Khanh, Tran Quoc, and Cornelius Neumann. "Illumination optics for indoor lighting, automotive and street lighting." Advanced Optical Technologies 8, no. 1 (February 25, 2019): 11–12. http://dx.doi.org/10.1515/aot-2019-0007.

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3

bpr. "Trends in Automotive Lighting Systems." ATZautotechnology 5, no. 4 (July 2005): 32–36. http://dx.doi.org/10.1007/bf03246903.

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4

Bielawny, Andreas, Thorsten Schupp, and Cornelius Neumann. "Automotive Lighting Continues to Evolve." Optics and Photonics News 27, no. 11 (November 1, 2016): 36. http://dx.doi.org/10.1364/opn.27.11.000036.

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5

PARLAKYILDIZ, Şakir. "Commercial Lighting Design in Human-Centered Lighting Concept." Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 12, no. 1 (March 22, 2023): 140–45. http://dx.doi.org/10.17798/bitlisfen.1205458.

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In this study, the lighting design of a building in the Organized Industrial Zone, which was converted from a warehouse to a commercial kitchen, was designed according to the Human-Centered Lighting concept. Point lighting calculations were made for commercial kitchen environments with artificial lighting. In order to reduce the negative effects of lighting on human health, lighting that will not disrupt the circadian rhythm should be provided. By using direct lighting, without changing the architectural design, it has been tried to provide optimum lighting suitable for human biology with low-cost artificial lighting arrangements. According to WELL standards, an average of at least 500 lux conditions should be provided in the relevant work area on counters and other food preparation or production areas in Commercial Kitchen Lighting. This area, which was designed as a warehouse for this purpose, was designed as a commercial kitchen in terms of lighting. As a result of the design, a lighting design was made in accordance with the WELL standards according to the Human-Centered Lighting concept. In this way, the visual comfort of the working personnel is improved and optimum circadian effects are provided.

6

KURTULUS, Orhan Uras. "New Trends and Functionalities in Automotive Tail Lighting." Eurasia Proceedings of Science Technology Engineering and Mathematics 14 (December 31, 2021): 31–38. http://dx.doi.org/10.55549/epstem.1050167.

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Styling of automotive tail lighting has become more and more important and evolved to a strong pusher for innovation in exterior lighting in recent years. Next generation and futuristic ideas of automotive exterior tail lighting which are considered within functionality and standards (Lee, 2019). The automobile industry is highly demanding for innovative technologies to equip luxury vehicles and low volume special series with unique lighting solutions. Beyond more and more homogenous rear lamps, all customers are asking for the next evolution or better revolution with marketing required wow-effect. All this in an environment of reduced space, shorter development cycles and higher quality expectations. Digitalization and automated driving will revolutionize our automotive lighting. The main purpose of lighting will no longer be the best visibility for the vehicle. Pedestrians and bicyclists are the new focus group. How we can give clear signals and information to them? The information has to come from the vehicle, not from the driver. What sort of lamps, lights or displays are needs? How could future vehicles then look like? (Berlitz, 2017). This paper will give a status to upcoming lighting solutions for communication. OLED, matrix lighting and projection lighting are shown as new concept vehicles enable the vehicle to interact with humans as well style attraction. These lighting technologies throw a glance on future possibilities for our automotive lighting business.

7

Yu, Shun-Hsiang, Oliver Shih, Hsin-Mu Tsai, Nawaporn Wisitpongphan, and Richard D. Roberts. "Smart automotive lighting for vehicle safety." IEEE Communications Magazine 51, no. 12 (December 2013): 50–59. http://dx.doi.org/10.1109/mcom.2013.6685757.

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8

Anthony, Blair T. "Lexan polycarbonate for automotive forward lighting." Materials & Design 6, no. 6 (December 1985): 293–302. http://dx.doi.org/10.1016/0261-3069(85)90011-1.

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9

Michenfelder, Steffen, and Cornelius Neumann. "Automotive Pixel Lighting Based on Projectors." ATZ worldwide 115, no. 11 (October 15, 2013): 60–64. http://dx.doi.org/10.1007/s38311-013-0132-5.

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10

Zhu, Yingguang, Lixue Guo, Yuhao Lee, Xianbin Xu, Jing Xie, Guohui Zhang, and Yonglan Hu. "57.4: OLED in Automotive Lighting Applications." SID Symposium Digest of Technical Papers 50, S1 (September 2019): 628–31. http://dx.doi.org/10.1002/sdtp.13592.

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11

Isele, Robert, Roland Neumann, and Karlheinz Blankenbach. "Automotive Interior Lighting Evolves with LEDs." Information Display 33, no. 3 (May 2017): 12–16. http://dx.doi.org/10.1002/j.2637-496x.2017.tb00993.x.

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12

Liu, Yan. "The Development of Santana 2000 Lighting Test Rig." Advanced Materials Research 690-693 (May 2013): 3449–52. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.3449.

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Santana 2000 car is the study of the automotive lighting test rig. In the development process, all parts are arranged in accordance with the original car position, and the original car lighting harness was wiring, and fault box of the simulation of the actual fault was set. Developed automotive lighting test rig can really provide lighting and signal system control principle and process. The whole system or local circuit wiring training and line detection training can be done. Actual troubleshooting ability can be trained by the whole system or local circuit. It is multi-function, much cheaper and has better effect. And it provides real platform for improving the operating ability of the lighting and signal system.

13

Cervi, Murilo, Douglas Pappis, Alexandre Campos, and Ricardo Nederson do Prado. "Omnibus interior lighting system using LEDs and automotive communication network." Sba: Controle & Automação Sociedade Brasileira de Automatica 17, no. 2 (June 2006): 205–12. http://dx.doi.org/10.1590/s0103-17592006000200008.

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This paper presents an intelligent lighting system for bus interior environment using LEDs (Light Emitting Diodes) controlled through an automotive communication network. The system consists of a master central control and slave lighting modules, using a LIN protocol (Local Interconnect Network) to perform communication. This network is a low cost alternative to the proposed system requirements, due to its low bit rate and physical needs. Each slave is an independent lighting module that supplies a group of LEDs and measures the environment lighting level. The master sets LEDs module parameters (slaves), such as the state (on/off) and desired lighting level. Besides, the master makes the user interface and establishes communication with other bus systems through a CAN (Controller Area Network) gateway. This paper presents a complete logical description, including block and state diagrams, a physical description and some relevant experimental results of the proposed system.

14

Xu, Fei Long. "Research on New Energy Automatic Lighting Control System Based on the CAN-Bus." Advanced Materials Research 1079-1080 (December 2014): 998–1001. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.998.

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With the continuousdevelopment of modern new energy technologies, Hyundai automation andincreasingly high degree of intelligence, automotive lighting control system isto ensure safe driving is an important part, in order to ensure the safety andconvenience of road lighting, reducing the driver's labor strength, appeared ona variety of new automotive lighting control system, commonly used in daytimerunning auto-dimming, automatic lighting system, the beam adjustment system,delay control. Applications CAN bus can not only simplify the wiring harness toachieve vehicle information sharing, reduce system cost, but also greatlyreduce the failure rate of vehicle lights, and extend lamp life.

15

Khortov, V. P., A. P. Grebenchikov, and A. A. Skvortsov. "Use of laser light in automotive lighting." Izvestiya MGTU MAMI 7, no. 2-1 (January 20, 2013): 234–38. http://dx.doi.org/10.17816/2074-0530-68343.

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16

Holland, John. "OLED lighting for automotive: communicable and adaptive." OPE Journal 12, no. 38 (2022): 14–15. http://dx.doi.org/10.51202/2366-8040-2022-38-014.

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17

Remillard, Jeffrey T., Michael A. Marinelli, and Timothy Fohl. "AUTOMOTIVE EXTERIOR LIGHTING FROM FILAMENTS TO LASERS." Optics and Photonics News 10, no. 8 (August 1, 1999): 39. http://dx.doi.org/10.1364/opn.10.8.000039.

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18

Pala, Silviu. "Book review: Automotive Lighting and Human Vision." Color Research & Application 34, no. 5 (October 2009): 402. http://dx.doi.org/10.1002/col.20514.

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19

Seriţan, George-Călin, Costel-Ciprian Raicu, and Bogdan-Adrian Enache. "Single-Wire Control and Fault Detection for Automotive Exterior Lighting Systems." Sensors 23, no. 14 (July 19, 2023): 6521. http://dx.doi.org/10.3390/s23146521.

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The design of exterior lighting is crucial for automotive manufacturers to ensure the visibility and safety of the driver. This article proposes a new strategy to control and diagnose one or more exterior lighting functions in electric vehicles by maximising the electrical faults that are detected and their transfer over a single-wire. The outcome is a decreased system cost and an additional method for vehicle lighting infrastructure control and diagnosis. Virtual simulation tools are used to explore the correlation between master-slave architecture and the effectiveness of the single-wire approach to comply with safety and regulatory demands. Safety-related and non-safety-related needs are explored to properly assess lighting functions, internal logic, and fault-case scenarios. Furthermore, assessing the viability of minimizing wire harness utilization while retaining the diagnostic capabilities for the controlled lighting sources, thereby simultaneously reducing the vehicle’s overall weight. This approach aims to concurrently decrease the overall weight of the vehicle. This work has three main contributions: (1) the development of efficient and reliable lighting systems in electric vehicles, a critical factor for achieving optimal performance, ensuring customer satisfaction, meeting regulatory compliance, and enhancing cost-effectiveness in automotive lighting systems. (2) Framework for future development and implementation of lighting systems in electric vehicles. (3) Simulation of the hardware architecture associated with the system strategy to achieve the desired system strategy for effectively applying the single-wire approach.

20

Brown, Annette. "Strengthen Your Brand With Lighting." Industrial Vehicle Technology International 29, no. 3 (September 2021): 71. http://dx.doi.org/10.12968/s1471-115x(23)70577-1.

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21

Weindorf, Paul, Elijah Auger, Brian Hayden, and Danail Totev. "42‐2: Automotive Image Enhancement." SID Symposium Digest of Technical Papers 54, no. 1 (June 2023): 599–602. http://dx.doi.org/10.1002/sdtp.16629.

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Automotive display image enhancement may be utilized to enhance display visibility under various lighting environments typically encountered in the automotive cockpit. Image enhancement methods may be combined with automatic luminance control methods to yield a new class of display visibility product.

22

Flannagan, Michael J., and Joel M. Devonshire. "Effects of Automotive Interior Lighting on Driver Vision." LEUKOS 9, no. 1 (July 1, 2012): 9–23. http://dx.doi.org/10.1582/leukos.2012.09.01.001.

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23

Isele, Robert, Roland Neumann, and Karlheinz Blankenbach. "47-1: Invited Paper : Automotive Interior Lighting Redefined." SID Symposium Digest of Technical Papers 48, no. 1 (May 2017): 687–90. http://dx.doi.org/10.1002/sdtp.11731.

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24

Wang, Yi, and Li Ren He. "The Research of CAN Bus in the Car Intelligent Lighting Control System." Advanced Materials Research 765-767 (September 2013): 1908–11. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.1908.

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As one of the most important subsystem of automotive control systems, the design of automotive lighting control system is essential. In this article, the automotive intelligent headlight control system based on CAN bus was introduced, and the system hardware structure and software design processes was given. Adopted MC9S08DZ60 microcontroller which integrated the CAN controller as the master chip. While taking advantage of the photoelectric sensor to analyze road lighting conditions, according to light changes in the external environment to achieve automatic dimmer. The circuit has characteristics of simple hardware design, high reliability and real-time. And provided a theoretical basis for the Hyundai Motor intelligent control system.

25

Kim, Taesu, Yeongwoo Kim, Hyeongseok Jeon, Chul-Soo Choi, and Hyeon-Jeong Suk. "Emotional Response to In-Car Dynamic Lighting." International Journal of Automotive Technology 22, no. 4 (July 24, 2021): 1035–43. http://dx.doi.org/10.1007/s12239-021-0093-4.

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26

Li, Qi, Mingyang Chen, Wenjing Xie, Qianyue Wang, Yue Wu, Chang Yang, and Jiangming Zhen. "Study on Energy-saving Lighting Design Method for Interior Zone of High-altitude Highway Tunnel." E3S Web of Conferences 189 (2020): 03035. http://dx.doi.org/10.1051/e3sconf/202018903035.

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In order to ensure the driving safety of high-altitude highway tunnel and effectively reduce the lighting cost, this paper adopts the method considering the influence of automobile headlights luminance which combines reaction time incremental theory at different altitudes and lighting design simulation calculation. The paper has studied the design pattern of high-altitude highway tunnel, which are dominated by fixed lighting and supplemented by automotive lighting. The results show that: to ensure driving safety, the luminance of the lighting design for interior zone of highway tunnel increases with the increasing altitude. Based on the supplementary lighting of automobile headlights, the lighting design standards for the interior zone of high-altitude highway tunnel(the altitude is 2000m, 3000m, 4000m, 5000m respectively) are 0.73cd/m2, 0.82cd/m2, 0.91cd/m2, 1.0cd/m2.

27

Seidt, Steffen, Thomas Winz, Ralf Sondershaus, and Ilona Rutkiewicz. "Soft- and Hardware for High-Definition Automotive Lighting Systems." ATZelectronics worldwide 16, no. 4 (April 2021): 50–53. http://dx.doi.org/10.1007/s38314-021-0600-4.

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28

Park, Herie, Hyensou Pak, and Chan-Su Lee. "Prospect of Automotive Lighting Systems of Self-Driving Vehicles." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 31, no. 8 (August 31, 2017): 1–8. http://dx.doi.org/10.5207/jieie.2017.31.8.001.

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29

Buonarosa, Mary Lynn, James R. Sayer, and Michael J. Flannagan. "Real-World Frequency of Use of Automotive Lighting Equipment." LEUKOS 5, no. 2 (October 1, 2008): 139–46. http://dx.doi.org/10.1582/leukos.2008.05.02.004.

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30

Hussein, Sama, Benjamin Hamilton, O. Remus Tutunea-Fatan, and Evgueni Bordatchev. "Novel Retroreflective Micro-Optical Structure for Automotive Lighting Applications." SAE International Journal of Passenger Cars - Mechanical Systems 9, no. 2 (April 5, 2016): 497–506. http://dx.doi.org/10.4271/2016-01-1407.

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31

Rohit, Shinde, Ramachandiran Gunabalan, and Mehtra Pavan Kumar. "Pulse Density Modulation Flyback Converter for LED Automotive Lighting." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (October 1, 2017): 85. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp85-91.

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Switched mode power supply (SMPS) converter is a dc-dc power electronic converter which is used to step up or step down the dc output voltage. A dimmable driver circuit for Light Emitting Diode (LED) lamp for automotive lighting with dimming feature is used in this paper. A flyback converter is used as a driver circuit operated in discontinuous conduction mode to perform dimming control of LEDs. High overall circuit efficiency is achieved by regulating the current through the LED lamps using pulse density modulation scheme. The LED driver circuit design and operating principle is discussed in detail. A gentle current control feature is achieved by pulse density modulation technique. The high performance driver circuit is designed for 25 W LED lamps.

32

Blankenbach, Karlheinz, Franziska Hertlein, and Stefan Hoffmann. "14‐1: Invited Paper: Advances in Automotive Interior Lighting." SID Symposium Digest of Technical Papers 50, no. 1 (May 29, 2019): 176–79. http://dx.doi.org/10.1002/sdtp.12884.

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33

Pascu, Nicoleta Elisabeta, and Tiberiu Dobrescu. "Modeling, Texturing and Lighting in CAD Applications." Advanced Materials Research 423 (December 2011): 116–27. http://dx.doi.org/10.4028/www.scientific.net/amr.423.116.

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Numerous modeling techniques exist, as well as many modeling formats. Point modeling, edge loop modeling, box modeling and paint modeling are a few of the polygon modeling techniques. Polygon proxy modeling is a variation of subdivision modeling. NURBS surfaces are used extensively in industrial design, manufacturing, and the automotive industry. Texturing and lighting transforms the dull-gray denizens of the modeling world into lifelike objects. Although texturing is nothing without good lighting, good lighting is nothing without good texturing. This article presents the process of modeling, texturing, lighting and rendering a scene in 3D. It also shows how create realistic fur, and implement studio lighting to create nice and soft shadows and highlights.

34

Latal, Jan, Patrik Hanulak, Jakub Kolar, Zdenek Wilcek, Tomas Stratil, and Filip Sarlej. "Measurement of colour coordinates of LEDs used in the automotive exterior lighting." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (January 19, 2021): 2711. http://dx.doi.org/10.11591/ijece.v11i3.pp2711-2724.

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Article deals with dichromatic white light-emitting diode (LED’s) color coordinates used in automotive exterior lighting. This article also describes basic white automotive LED functionality and basic physical processes that create white light of these LEDs. It focuses on measuring color coordinates of white automotive LEDs with different temperature of LED and how the LED’s color depends on LED’s temperature. The article is comparing very important datasheet information of LED producers and values measured in the laboratory at university. The article contains statistical results of measurements and graphical representation of measured values and declared color bins which are very important for producers of headlamps for automotive companies.

35

Fang, Yi-Chin, Yih-Fong Tzeng, Chan-Chuan Wen, Chao-Hsien Chen, Hsiao-Yi Lee, Shun-Hsyung Chang, and Yi-Lun Su. "A Study of High-Efficiency Laser Headlight Design Using Gradient-Index Lens and Liquid Lens." Applied Sciences 10, no. 20 (October 20, 2020): 7331. http://dx.doi.org/10.3390/app10207331.

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In the field of vehicle lighting, due to the diode laser, its small size and high energy conversion efficiency, it can be effectively used as the headlight source of high beam. In recent years, it was adopted by European advanced car manufacturers as a new generation of automotive headlight lighting products. The current mature technology on the market is to extend the laser beam by means of reflection and to use a single high-power laser as the light source to meet the needs of surface lighting. In this research, we propose a new integrated optical design for an automotive headlight system with the rod lens, gradient-index lens (GRIN lens) and freeform lens to expand the laser beam. With regard to the diffusion of the beam by reflection and refraction, the liquid lens is used as a switch for the high beam and low beam lights to meet the needs of vehicle lighting functions and to use low-power diode lasers to synthesize the array light source. Compared with the 24-W LED headlight module available in the current market, the energy saved by this proposed optical design can increase efficiency by an average of 33%. The maximum illuminance is 56.6 lux in the high-beam mode, which is 18% higher than the standard value. Let the laser light meet the lighting requirements of regulatory standard values even beyond.

36

Öztürk, Emre, Mehmet Aktaş, and Tunç Şenyüz. "Sun Load Analysis and Testing on Automotive Front Lighting Products." Light & Engineering, no. 01-2020 (February 2020): 116–22. http://dx.doi.org/10.33383/2019-026.

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The purpose of this research is to reach good correlation between sun load simulation and solar focusing test for exterior automotive lighting products. Light coming from sun is highly collimated (parallel rays) and focusable from lenses with concave structure. Focusing incidence leads to a hot spot on lens surrounding plastic parts which may cause melting failures at high temperature zones. Sun load simulation is performing to eliminate risk of discoloration, deformation, out gassing, coating failures and fire with prolonged exposure from field. Irradiance values in W/m2 defined in simulation as heat source depending of an angle of incidence of the sun radiation. At first step, simulation is performing with 5 degree intervals to define the critical zones then intervals decreased to 2 degree to detect the critical azimuth and inclination angles. Critical azimuth and inclination angles is checking with ray trace analysis to check the bouncing of sun rays and possible solution to eliminate focuses with design solutions. After numerical analysis to release and validate the automotive lighting products regarding the sun load test, measurement with first parts is necessary. Measurement is performing for all critical angles which have been detected at simulation with thermal camera under ultra high-collimation solar simulator. Measured temperatures are settled according to environment conditions and correlation is checking with simulations.

37

Watson, J. Christopher, Gennady Dumnov, Alexander Muslaev, Andrey Ivanov, and Svetlana Shtilkind. "Condensation Modeling during Automotive Lighting Product Development Using CFD Simulation." SAE International Journal of Passenger Cars - Mechanical Systems 9, no. 2 (April 5, 2016): 507–16. http://dx.doi.org/10.4271/2016-01-1409.

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38

Sodkomkham, Thanwarhat, and Parames Chutima. "Lean Six Sigma Application in Rear Combination Automotive Lighting Process." IOP Conference Series: Materials Science and Engineering 131 (May 2016): 012022. http://dx.doi.org/10.1088/1757-899x/131/1/012022.

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39

Umar, Muhammad Wasif, Norzaihar Yahaya, and Zuhairi Baharuddin. "PWM Dimming for High Brightness LED Based Automotive Lighting Applications." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 5 (October 1, 2017): 2434. http://dx.doi.org/10.11591/ijece.v7i5.pp2434-2440.

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In recent years, the use of high brightness LEDs has become increasingly accepted as light sources in mainstream vehicles. However, they are semiconductor devices and their electrical characteristics are completely different to the traditional lamps. The output luminous flux of an LED is determined by the forward current running through it. Hence they cannot be powered directly from the automotive battery using the conventional driving techniques. They require specialised driving circuits which can respond to the changing needs of the LEDs as their electrical properties change, while maintaining the uniform brightness. This paper discusses the importance of dimming for LED based automotive lighting applications. A boost type DC-DC switching converter with pulse width modulated (PWM) dimming control has been proposed. MATLAB/Simulink simulation package has been used to verify the theoretical predictions hence to provide a useful guide for design engineers and researchers.

40

Horsky, Pavel, Jan Plojhar, and Jiri Daniel. "Adaptive Peak Average Current Control LED Driver for Automotive Lighting." IEEE Solid-State Circuits Letters 2, no. 9 (September 2019): 199–202. http://dx.doi.org/10.1109/lssc.2019.2933953.

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41

Yusop, Siti Hajar Mohd, Ismail Nasiruddin Ahmad, and Muhammad Izzat Nor Ma’arof. "A Review of Research Concerning Lighting in Manufacturing Plants." Advanced Engineering Forum 10 (December 2013): 83–88. http://dx.doi.org/10.4028/www.scientific.net/aef.10.83.

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Based on the Market Watch 2012 with regards to the ASEAN region, Malaysia is the third biggest automotive manufacturing nation which employs more than 300,000 people. To accomplish their operation demands, manufacturing companies such as Proton and Perodua would utilize artificial lighting in their respective manufacturing plants. Research on the effects of artificial lighting on human expended about millions of dollars every years. Sufficient lighting is required for effective tasks completion while providing adequate visual capability, thus will ensure the safety of the operators. Eye strain, migraine and headache are among the common symptoms caused by poor lighting at workplace. This study aims to review on prior research regarding sufficient lighting while giving a special focus on light assessment techniques and tools in determining the luminous level in manufacturing plants. This study will contribute to create awareness among the manufacturing plant on the importance of lighting in term of work performance and occupational safety and health.

42

Tomczuk, Piotr, Marcin Chrzanowicz, Tomasz Mackun, and Marcin Budzyński. "Analysis of the results of the audit of lighting parameters at pedestrian crossings in Warsaw." Archives of Transport 59, no. 3 (September 30, 2021): 21–39. http://dx.doi.org/10.5604/01.3001.0014.9554.

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The night time, based on many world studies, generates an increased risk of serious accidents (with fatalities and serious injuries). This is especially true for accidents with pedestrians. Pedestrian crossings are very sensitive to the influence of the time of day in terms of pedestrian safety, elements of road infrastructure. This is visible on the example of Poland, where numerous accidents at crosswalks are recorded, characterized by high severity at night. Road infra-structure managers take corrective actions to improve this condition. An example of such work is the Road Safety Audit (RSA), initiated in 2016 by the Municipal Roads Management Board in Warsaw. The analyses carried out by the au-thors, among others, in the years 2016 - 2019, included pedestrian crossings without traffic lights located on roads managed by ZDM (Municipal Roads Authority) in twelve districts: Bemowo, Bielany, Mokotów, Ochota, Praga Połud-nie, Praga Północ, Śródmieście, Targówek, Ursynów, Wawer, Włochy, Żoliborz. The assessment was carried out in terms of the correct lighting of these passages, traffic organization, geometry and environmental impact. The main aim of the article is to present a methodology for evaluating the technical condition of road lighting infrastructure on a large scale (e.g. district, city). The article discusses the general and detailed state of pedestrian safety in Poland against the background of research conducted in Warsaw. The procedure of inspection and assessment of the state of lighting of pedestrian crossings is described and selected results are presented. On the basis of a detailed analysis of the results of individual pedestrian crossings, the general condition of the tested crossings was assessed and recommendations were indicated. An attempt was made to assess the influence of pedestrian crossings lighting on the general state of road safety. A critical evaluation of the obtained effects was made. The utilitarian aim of the article is to apply the described methodology in other cities and to use the results of the conducted analyses to plan and implement road investments in the field of modernization of lighting at pedestrian crossings on a large scale.

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Yakubu, OYELAMI Adesina, and Olamiju Kehinde. "Assessment of Street Lighting on Urban Security System in Oyo State, Nigeria." International Journal of Research and Scientific Innovation XI, no. III (2024): 624–33. http://dx.doi.org/10.51244/ijrsi.2024.1103044.

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This research investigates the impact of a streetlight initiative on the urban security dynamics of Oyo State, Nigeria, employing a descriptive research design. The study encompasses drivers and road users across Oyo State’s three senatorial districts, with a sample size of 400 selected from specific Senate districts. The findings reveal a substantial correlation (92.2%) between crime and areas lacking functional street lighting, a perception consistent in both Oyo and Ogbomosho, highlighting shared identifications of crime-prone locations. The average mean of 3.39 underscores a significant consensus among respondents regarding the severity of urban security challenges, including vandalism of street lights, robbery, house and store break-ins, theft, grievous hurt, wounding, murder, and rape. Respondents exhibit a predominant “Strong Agreement” (overall average mean of 3.45) regarding the positive impact of street lighting on security enhancement, particularly at night, facilitated by the involvement of police and Amotekun security patrols. Challenges identified in street lighting strategies for crime management within Oyo State encompass poor funding of the security sector, corruption, power failure, poor maintenance, vandalism of existing equipment by thugs, and inadequate maintenance of damaged cables and poles, all demonstrating statistical significance with p-values below 0.05. Proposed strategies to alleviate the current state of insecurity in the study area garner strong agreement from respondents, with a grand mean of 3.57. Key strategies include the installation of brighter street lights powered by solar or generators, ensuring uninterrupted street lighting systems, establishing police and rapid response to crime incidents, regularly maintaining and replacing malfunctioning street light bulbs, refurbishing security-conscious urban infrastructure, incorporating safety principles in urban planning, and intensifying crime and violence prevention campaigns to sensitize vulnerable groups. The study concludes that unevenly lit road sections in the urban state of Oyo pose risks for users, especially during nighttime driving. Recommendations include the installation of bright streetlights in all urban centers in Oyo State, utilizing solar power or generators. Furthermore, the study advocates for intensified crime and violence prevention campaigns by civil society and relevant authorities to enhance awareness among vulnerable populations in Oyo State.

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Nguyen, Nghia Phan Trong, Minh Ngoc Phan, Duc Anh To, and Thang Hung Bui. "A Preliminary Anti-Glare System for Traffic Vehicles Using Polarizing Filters and a Polarizing Flip Plate." Applied Sciences 13, no. 7 (March 27, 2023): 4240. http://dx.doi.org/10.3390/app13074240.

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In the past, polarizing filters were attached to cars’ halogen headlights to reduce glare for other vehicles. However, the filters absorbed a significant amount of light and made it difficult for drivers to see properly. Coupled with overheating issues and numerous technical and logistical limitations, polarized automotive lighting systems have not become widespread. In this research, we propose using a polarized LED lighting system to improve drivers’ visibility. Our results demonstrated an illuminance reduction of up to 97.5% when simultaneously using a polarized headlight filter and flip plate. Additionally, our system’s lower operating temperatures resulted in a lifespan increase of approximately 120 times compared to a conventional halogen lighting system.

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Wang, B., Suet To, Wen Kui Wang, and Ka Chun Cheung. "The Design of LED Fiber Automotive Headlamp." Key Engineering Materials 679 (February 2016): 79–84. http://dx.doi.org/10.4028/www.scientific.net/kem.679.79.

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It's more and more common to use LED as the light source in automotive lighting. But heat dissipation and low light output of single die light source have restricted the LED to be the mainstream. To use fiber as light-transmitting component could perfectly resolve above weakness. In the paper a design method of LED fiber automotive headlamp is mentioned. And for COB (chip on board) LED, a mathematic model of TIR (total internal reflected) lens is proposed. It could effectively focus the rays emitted from surface light source.

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Böhm, Michael, and Jürgen Locher. "Lighting-Based Driver Assistance Systems." ATZautotechnology 8, no. 3 (March 2008): 42–46. http://dx.doi.org/10.1007/bf03247039.

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Honda, Kiyokazu. "Trend and View on Lighting Equipments for Automotive Use (General Report)." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 76, no. 12 (1992): 644–46. http://dx.doi.org/10.2150/jieij1980.76.12_644.

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Marcori, Franco, M. Antonipieri, I. di Vora, S. Padovani, and I. Riolino. "Study of MID Technologies for Automotive Lighting and Light Signaling Devices." Advanced Materials Research 1038 (September 2014): 97–103. http://dx.doi.org/10.4028/www.scientific.net/amr.1038.97.

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The production of Molded Interconnect Devices (MIDs) may be achieved through different processes. In this work Centro Ricerche Plast-optica (CRP) has chosen to evaluate, implement and assess Laser Direct Structuring (LDS) and In Mold Labeling (IML) technologies for the production of MIDs. Both alternative methods have been analyzed starting with a 2D component, mainly used for implementation and optimization of the process, and finally a more complex 3D component, that has been designed and produced. The first phase of the activity regards the production of several conductor patterns on planar substrates dedicated to evaluate properties as conductors resistance, adhesion, SMD components solderability, wire bondability of bare LED dice etc. In the case of IML, a flexible circuit has been over-molded during the production of the component by injection molding process: planar parts have been tested also in terms of adhesion of flexible circuit to the injected polymer. The second phase of the activity concerns the production of 3D circuits. Both technologies have been implemented in order to select to materials, process conditions and parameters, design rules and to verify the reliability in the automotive severe conditions. Exploitation of technologies have been performed on an automotive rear lamp. A prototype has been produced in LDS technology and allowed to define the conditions that make economically affordable this solution. Differently, the IML technology allowed to produce a completely new device by embedding a planar electronic circuits into the plastic material.

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Failla, Marco, and Gianpaolo Vitale. "A Double Stage DC/DC Converter for LED Lighting Automotive Systems." Renewable Energy and Power Quality Journal 17 (July 2019): 305–13. http://dx.doi.org/10.24084/repqj17.295.

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KURAMOTO, Masafumi, and Yuji OKADA. "SMT LEDs for Automotive Interia Lighting, Polymer Material of Plastic Package." Kobunshi 54, no. 10 (2005): 769. http://dx.doi.org/10.1295/kobunshi.54.769.

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