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Technical survey and regulations
LED Thermo Electrics PDF Print E-mail
Tuesday, 03 January 2012

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LED solutions in automotive lighting get an ever-increasing level of attention—not only on show cars, but also in the market where a continuously growing number of models is equipped with LED lighting. This DVN technical report on LEDs and their implementation in the electrical and thermal environment is a response to the increased prevalence and interest of LED lights on (and in) cars.

The target group for this report is not technical specialists, but rather persons who in their daily work are confronted with more general questions and decisions around LEDs and want to gain a solid basic understanding of this technology. We cover the various topics from a broader view by giving typical examples and data without going into too much detail or trying to account for each and every execution variant.

The chapters of the report focus on the LED itself and its interfaces to the electrical and thermal interfaces in the car.

First we describe the technology of the LED. The basic physical principles of light emission are outlined and related to the typical construction of LED products of the different integration levels. Additionally a sketch of the manufacturing processes of LED dies is discussed.

Secondly we focus on the electrical characteristics of LEDs. The consequences of this behaviour for the electronics driver circuitry are explained and design examples are discussed.

In a third step, the most important elements of the temperature dependence of an automotive LED are covered. It will become clear that the thermal management of an LED is paramount to the performance of the built lighting device overall. Especially also the characteristics and influences of the cooling by heat sinks is explained.

As a link to application examples we include photographs of the thermal components of various LED systems for rear lighting, signaling, DRLs and headlamps. The variety of different designs highlights the problem of non-modularity and reusability of technologies leading to growing engineering resource needs.

As an outlook to the future we present three expert opinions in the field on the development of LED systems and markets, and we conclude with some of our own (DVN) statements, predictions and forecasts about the future of LED automotive lighting.

 
Automotive Lighting in North America PDF Print E-mail
Tuesday, 30 August 2011

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The American market for automotive lighting is substantially different compared to the rest of the developed world. Not only are the technical regulations different, but so are car buyers' and automakers' preferences and priorities. The American market is uniquely cost-sensitive.

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LIGHTING and THERMAL SIMULATIONS PDF Print E-mail
Tuesday, 26 July 2011

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This report presents the status of lighting simulation developed by Tier-1 and -2 automotive lighting players and by automakers. The first part is focused on Tier-2 suppliers like Brandenburg with their LUCID family of software products, Breault's ASAP, Optis' SPEOS, the Lambda Research TracePro system, Synopsys' LightTools, and Oktal's SCANeR driving simulator. The main features of their simulation tools are presented, together with their achievements and interviews with product managers. Light source characterisation is also examined with discussion of such companies as Radiant Imaging.

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Tier 2 & 3 contribution on lighting PDF Print E-mail
Tuesday, 24 May 2011

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“Tier 2&3 contribution on automotive lighting innovations” report covers, in around 100 pages, the messages from automakers and 1st-, 2nd-, and 3rd-tier (T1, T2, T3) suppliers in the lighting industry. We identify the main 2nd- and 3rd-tier players who are contributing to bring this industry to its current advanced technological and economic state.
In the first chapter, we present DVN workshop lectures from Audi's Wolfgang Huhn, Ford's Thorsten Warwel, Renault-PSA's Mathieu Lips and Laurent Serezat, Automotive Lighting's Kamislav Fadel and Michael Hamm, Valeo's Jean-Paul Charret, Hella's Hans-Theo Dorissen, and Visteon's Rainer Neumann.
The second chapter presents the seven Round Table discussions held at the DVN workshop, with debriefing from the chair of each discussion: Light Sources, LED and OLED, Electronics, Material and Process, Simulation, Components, Mechatronics and Testing equipment.

In the third chapter, this report covers the great contribution of T2 and T3 lighting companies, without whom the automotive lighting industry and community could not have attained its present and rapidly ongoing state of development.
Profiles of 29 T2 and T3 lighting companies are presented with contact information for their experts and managers and a guide to how lighting fits into their strategy. Among these are light source suppliers such as Osram, Philips, GE, and Koito, plastic/Coating suppliers such as Bayer, DSM, Sabic, GXC and DBM-reflex, electronics providers including Elmos, Freudenberg, Osram, Philips and Zollmer, simulation software developers like Brandenburg, Delvis and Optis, components suppliers like CCI, Docter Optics, Eschenbach and Sealink, mechatronics developers including AML Systems, DAIA-Burgess, Sonceboz, testing equipment makers like LMT and Optronik, and engineering & design outfits such as Bertrandt, IAV and the IDEAS Institute.

At the end, the author presents pictures of the main players of car makers and T1, T2, and T3 lighting suppliers talking together at the DVN workshop.

 
Lighting Regulation Round the World PDF Print E-mail
Tuesday, 22 February 2011

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Most of us reading this have at least some familiarity with at least some of the world's lighting regulations. But those with only one foot (or none at all) in the lighting world tend to regard lighting regulations as among the densest, most arcane, most voluminous, and hardest to comprehend of all the regulations that apply to vehicles and vehicle equipment—see for example Bernard Govin's interview towards the end of this report.

What are these complicated rules, and how are they devised? Why are there so many of them, and why do they specify what they specify? How come, in 2011, there is still transoceanic disagreement over what lights should be regulated and how? As the pace accelerates at which lighting technology increases, and as new players now begin to build and export cars and parts without a track record of understanding and complying with technical regulations, regulators face new challenges to keep the rules up to date with the technology and understandable to all.

This report covers all that material and more.
The first chapter describes each of the ECE regulation organisations in detail and presents the main recent decisions, as well as important subjects still in discussion. The next two chapters cover the same subject for North America and Asia. There are annotated examples, there is commentary, and there are interviews with key players.

 
The Wonderful World of Passenger Car Lighting PDF Print E-mail
Tuesday, 21 December 2010

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“The wonderful world of passenger car lighting” covers in around 100 pages the history of a century of achievements in the automotive lighting industry, from the first tungsten filament light source to the cutting edge “intelligent Xenon” and LED headlamps which came in production during the last years of this 2010 decade. We identify the main players, lighting suppliers and car makers, who contributed to bring this industry to its current advanced technological and economical state. We outline the future potential of new lighting technologies.
This report presents in its first chapter the history of automotive Lighting through around 50 meaningful events, calling back to mind 6 successive technological breakthroughs: halogen bulbs, complex optics, Xenon light sources, dynamic bending lights, adaptive cut-off with auto beam select, LED headlights better than Xenon, but also 2 dead-end lighting developments: polarised light and UV-augmented head lighting.

In the second chapter, putting aside halogen considered as a well-known conventional technology, the author draws a complete description of current lighting technologies with their on-going developments, completed by the author vision of the future of lighting technologies in a time filled with numerous and great lighting innovations. The following technologies are presented in details: rear LED systems, Xenon 35w, A.F.S., Xenon 25w, LED, and adaptive systems.

The author wished to acknowledge in the third chapter the great contribution of lighting companies which do not exist anymore, and especially some remarkable characters acting as top engineers or managers personally involved in bringing lighting innovations to the market and lobbying to introduce resulting regulations: once-major players like Bosch, Carello, Cibié, Guide, Lucas, Marchal. and Seima. Thanks to them, automotive lighting is today at this cutting edge level which we are all proud of.

This future is now depending on global lighting suppliers the most important of which are introduced in chapter 4: Automotive Lighting, Farba, Hella, Ichikoh, Koito, Magna, Mobis, Odelo, SL Corporation, Stanley, Valeo, Visteon, ZKW Zizala. For each of these companies, the author covers shortly its history, sales, organization, R&D and projects, main successes and its main contributors to lighting innovations.

Chapter 5 covers car makers and how lighting fits into their strategy. The author has selected seven car makers based on their past and current contribution to lighting and their strategy is presented emphasizing the 3 levers of lighting, performance, styling differentiation and energy consumption.

Audi, first to demonstrate how lighting can become a great lever to sell cars and improve safety, BMW who have been the first to show the way for decisive styling differentiation with the 2 round reflector/projector modules, combined with Xenon systems, Mercedes and their aggressive lighting communication strategy since the C-Class vehicles and their “Complex Shape/Calculated Form” headlamps, Opel making their biggest lighting step with the Insigna at the end of 2008, and confirming their styling language with the Astra and Meriva, Renault and PSA who led most of the lighting innovations until 1990 and which focus their strategy to affordable lighting innovations including LED technologies, and finally Volkswagen creating at the end of 2008 an interdisciplinary team to develop innovative lighting systems with the first results on the new Phaeton and Touareg.

In chapter 6 are introduced the two main organizations which build lighting regulation, GTB and SAE, as well as the most famous automotive lighting congresses and shows.

Finally, in chapter 7, universities which play a key role in lighting technologies are presented: Darmstadt which teaches and lectures many OEM lighting players, Nuremberg and L-Lab, and UMTRI and LRC two US universities involved in lighting, last but not least for the future of our industry, Fudan University Research Centre in Shanghai.

 
The Automotive Lighting Industry in China PDF Print E-mail
Tuesday, 28 September 2010

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Since November 2009, China is the largest auto market in the world producing 13.8 million motor vehicles, of which 8.4 million were passenger cars (sedans, SUVs, MPVs and crossovers), and 3.4 million were commercial vehicles (buses, trucks, and tractors),and around 2 million 2-3 wheelers. In 2009, it achieved an explosive 46% growth, accounting for the increase of 4.26 million vehicles. To give an idea of what that means, this volume is equivalent to that of Japan’s entire market in that same year 2009.

These impressive numbers contrasting with the dull situation of sales in the rest of the world except for the other BRIC countries ( Brazil, Russia, India) make it easy to foresee why the Chinese market and its key automotive players is becoming of utmost importance for Global OEM, for automotive Lighting Companies as well as for numerous Tier-2 suppliers.

As a result, Driving Vision News has decided to publish a first report describing the automotive lighting Industry in China and how it could affect in the future the global automotive lighting market. Similar reports about India, Brazil and Russia will follow.

For this present report, Driving Vision News has not only gathered and checked the information available from different sources but has also visited the main Chinese lighting actors to get firsthand knowledge.

After a brief market overview, this report first identifies the Chinese players, whether locally owned or acting as partners in Chinese joint ventures. In its main and more specific chapter, this report mentions who the main Chinese automotive lighting manufacturers are, whether international players or local set manufacturers, and estimates their respective market shares.

Global lighting suppliers came to China to follow their important customers. There are two main reasons:
- to follow the needs of car makers
- to compensate market  slump in European and American markets.

Setmakers started local engineering to develop local headlamps and rear lamps and to have low cost products and high reactivity to service local car makers, JVs and local companies.

Local set makers are also identified and collected information presented: size, footprint, manufacturing or testing equipment, laboratory, and main customers. Finally, this report covers Chinese manufacturers of halogen, LED and Xenon light sources for the automotive market.

Illustrated with dozens of tables, graphics and pictures, the 40 pages of this report about the Chinese automotive lighting Industry will allow you to become familiar with this growing part of the global automotive lighting market.

Table of content

 

Executive summary………………………………………………………………………………3

About the author…………………………………………………………………………………4

Introduction…………………………………………………………………………………………5

1 – Market overview…………………………………………………………………………6

  1.  
    1. – General concerns…………………………………………………………..6
    2. – Passenger car market……………………………………………………8
    3. – Government incentives…………………………………………………9
    4. – The manpower issue……………………………………………………10

2 – Car makers…………………………………………………………………………………11
2.1 – Main Chineses automotive holding companies………………………………13
FAW
SAIC Motors
Dongfeng
Chang'an Motors
2.2 – Joint ventures……………………………………………………………………………14
Shanghai General Motors (SGM)
Shanghai Volkswagen (SVW)
FAW-VW
Dongfeng-Nissan
Beijing-Hyundai
FAW-Toyota
Changan-Ford
Guangzhou-Honda
Dongfeng-PSA JV
Dongfeng-Kia
Guangzhou-Toyota
Dongfeng Honda
Changan-Suzuki
Volkswagen
General Motors
2.3 - Stand-alone local car makers ……………………………………………………...17
BYD Motor
Chery Motor
Geely
FAW Car
FAW-Tianjin-Xiali
Great Wall Motor
Jianghuai Motor
Brilliance Auto

3 – Headlamp manufacturers……………………………………………………………20
3.1 – Main international players………………………………………………………………24
Shanghai-Koito Automotive Lamps Co., Ltd
Stanley Electric in China
Samlip (SL) Corporation in
Changchun Hella
Hubei Valeo Auto Lighting Co., Ltd
Foshan Ichikoh Valeo Auto Lighting Systems Co., Ltd
Visteon TYC Auto Lamp Co., Ltd
Automotive Lighting, Ltd   
3.2 – Leading OEM Chinese set makers………………………………………………31
Changzhou Xingyu Automotive Lighting Systems Co., Ltd
Zhejiang Tianchong Vehicle Lamp Co.,Ltd (Tchong)
Nanning Liaowang Automotive Lamps Co., Ltd
3.3 – Other OEM Chinese set makers…………………………………………………32
Wuhu Ruby Automotive Lighting Systems Co., Ltd
Zhejiang Jiali Industry Co., Ltd
Utas-nova Automotive Lighting Systems Co., Ltd
Zhuhai Winner Auto Lamp Manufacturer Industrial Co., Ltd
Danyang Yishan Lamp Equipments Manufacture Co., Ltd
Jiangsu Wenguang Group Co., Ltd
Hubei Huanyu Autolighting Co., Ltd
Hubei Xiaogan Huazhong Automotive Lighting Co., Ltd         
 

4 – Light sources……………………………………………………………………………37
4.1 – Halogen and Xenon sources………………………………………………………37
4.2 – LEDs…………………………………………………………………………………………38

5 - Questions & Answers………………………………………………………………39

Outlook & Conclusion……………………………………………………………………41

 

List of DVN reports already published and to be published………………………42

 
Adaptative Lighting Systems PDF Print E-mail
Tuesday, 31 August 2010

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Since the arrival in 2003 of "Bending Light", the first modern adaptive front lighting feature, big changes have taken place in the field of lighting functions. We've seen the integration of new electronic technology and technique: miniaturized sensors, activators, and command/control units. Full AFS arrived in 2007, camera-based automatic high/low beam selectors and adaptive cutoff in 2009.

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LED headlamps report PDF Print E-mail
Monday, 29 March 2010

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The global market for LEDs exceeds $5bn annually, and is expected to grow at a pace of more than 24% annually. The automotive lighting market is still a small part of it but will benefit from the aggressive and bullish approach of global suppliers which view this market as an attractive and fast growing volume market opportunity.
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Xenon 25w report PDF Print E-mail
Monday, 29 March 2010

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DVN brings you this detailed report on Xenon 25w now, at the best time to help car makers and lighting suppliers make crucial decisions. Following the June GTB meeting, we now have a clearer idea of the regulatory trends. Even all is not clear on timing and some specifications, we better know the progress of Philips and Osram on Xenon 25w development in terms of performance and production.

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