Automotive lighting: the race for more resolution with more integration
Volkswagen ID3 matrix LED-based headlamp stripped bare by PISÉO.
- The automotive lighting market is expected to reach US$42.2 billion in 2027, at a 4.9% CAGR between 2021 and 2027.
- The automotive lighting market is dominated by five big players: Koito, Marelli, Valeo, Hella (now Forvia), and Stanley.
- ID 3 headlamp: sophisticated optical solutions have been designed and implemented to meet strong performance and integration requirements.
- The ID 3 headlamp embeds an ADB function, consisting of selecting 1 11 LEDs to extend the beam and cover more than the low beam However, the resolution of lighting areas, limited to 11 LEDs, appears low compared to other ADB headlamps installed on high range vehicles, but is a step level for this function.
The automotive lighting industry is driven by the demand to develop smarter, more energy-efficient and effective lighting systems for improved safety and comfort when driving at night. In addition, car manufacturers aim to differentiate themselves with a unique lighting signature. Engineers must, therefore, balance a number of criteria, including performance, regulatory compliance, aesthetics, and cost, making the design of the whole system increasingly complex.
Joel Thomé CEO, PISÉO.“Intense competition in the market is forcing car equipment makers to broaden their fields of expertise and skills by acquiring companies that already have knowledge and know-how in innovative lighting technologies,”
And this is a typical strategy adopted by Plastic Omnium this year, which has added new technological building blocks to its portfolio with the acquisition of AMLS (Automotive Lighting Systems GmbH) in March and Varroc Lighting Systems (VLS) in October.
In this dynamic context, PISÉO announces its latest automotive lighting report: VW ID3 headlamps construction and performance analysis. PISÉO, part of Yole Group, always one step ahead of technology trends, lifts the veil on the architecture and performance of the Volkswagen ID3 front light, designed and manufactured by VLS. The report is aimed at engineers, designers, and marketers looking for an up-to-date and in-depth analysis of a headlight system based on ADB (Adaptive Driving Beam) technology.
In this report, Olivier Andrieu, PhD. Innovation Leader and System Architect at PISÉO and Joel Thomé, reveal the steps in the building process and the compromises VLS engineers had to make to design this device based on a technology that is attracting increasing interest among leading car and automotive equipment manufacturers.
Titre du visueljune 2021
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From halogen to xenon to LED, lighting technology in the automotive industry has undergone major shifts since the 1970s, with a quantum leap forward in less than two decades due to the emergence of matrix LED headlights.
Olivier Andrieu from PISÉO“As part of an Adaptive Driving Beam system that includes a sensor network and an ECU , matrix LED lighting devices have been developed to provide smart front lighting. The light from the matrix LED module is split up into several individually controllable subsegments which are switched on or off depending on the driving environment while providing optimum light distribution with no blinding of other drivers.”
The more LEDs are integrated, the higher the resolution. Despite LED’s ultra-low latency, the difficulty, at the overall ADB system level, still remains in minimizing the time between data collection and the actual light flow change…
In addition, PISÉO’s performance report reveals that the ID3 headlight is a high-quality product; its main strength lies in good optical architecture and photometric performance. However, the teardown unveils low rationality in the mechanical and electronic architecture of the system – illustrated, for instance, by a surprising layout of LED PCBs (Printed Circuit Boards) in the LED source module – that confirms a design partly governed by the aesthetics of the front light. The heatsink design also suffers from a lack of optimization, and the presence of a fan raises doubts as to the efficiency and reliability of thermal dissipation management. Performance evaluation with regard to regulatory compliance has been completed and reveals that the ID3 headlight compliance regarding beam projection exceeds regulatory requirements. However, compliance in terms of colorimetry may be a topic for discussion…
Yole Intelligence and PISÉO’s lighting teams invite you to follow the industry and the evolution of the technology on www.yolegroup.com.
- ECU : Electronic Control Unit
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