More accurate predictions for thermal management

Where is heat generated in modern car headlights and how does it spread within these complex systems? The Fraunhofer Application Center for Inorganic Phosphors in Soest is developing methods to answer this question in cooperation with HELLA GmbH & Co. KGaA.

Auto Scheinwerfer
© HELLA GmbH & Co. KGaA
Moderne Scheinwerfer verbinden hohe Funktionalität und Sicherheit mit ansprechendem Design auf engem Bauraum. Diese Faktoren schaffen ein herausforderndes Umfeld für das Thermomanagement, bei dem technische Exzellenz gefragt ist.

Modern car headlights based on LED light sources are complex technical systems. Simple headlights with high and low beam have long since been replaced by adaptive light systems. These systems automatically adapt to different driving conditions. In addition to improving visibility, the automatic system relieves the driver and thus contributes significantly to driving safety.

To make this possible, efficient thermal management is required in addition to intelligent light guidance and control. Thermal management plays a central role in the development of modern car headlights and has a decisive influence on their performance, durability and efficiency. This is because, despite the increases in efficiency achieved through the use of LEDs, powerful light sources generate considerable heat during operation, which must be dissipated efficiently. Careful thermal management enables the potential of new lighting technologies to be fully exploited and the high standards of performance, safety and efficiency of modern vehicle lighting to be met.

The joint efforts of Hella and the Fraunhofer Application Center are aimed at developing new methods for the analysis of heat paths. The aim is to improve the predictive accuracy of the thermal models used in the development of headlamps. This ultimately enables more efficient heat management.

The close collaboration enables an interdisciplinary approach that brings together researchers from both organizations. This exchange of expertise and resources promotes the development of solutions that are not only technologically advanced but also economically viable. The synergy between Hella and the Fraunhofer Application Center thus creates a platform for innovation.