Adaptive Driving Beam - Visibility Improvement versus Glare

Paper #:
  • 2014-01-0436

Published:
  • 2014-04-01
DOI:
  • 10.4271/2014-01-0436
Citation:
Neumann, R., "Adaptive Driving Beam - Visibility Improvement versus Glare," SAE Technical Paper 2014-01-0436, 2014, doi:10.4271/2014-01-0436.
Pages:
4
Abstract:
Since 2012, adaptive driving beam (ADB) was homologated first in the ECE world (ECE 123). The idea behind is a camera based lighting system, which enables the driver to achieve at night nearly high beam visibility without glaring oncoming or proceeding vehicles and road users. Once the presence of other vehicles is detected the headlamps change the light pattern and block the light where the oncoming or proceeding vehicles are located.Light sources are typically High Intensity Discharge (HID) bulbs, but today also first LED applications are visible.For SAE, the definition of the parameters and the requested regulation changes to allow such systems are in progress.The paper reports about an extensive study executed in Germany at TU Darmstadt to investigate not only the improvement in visibility for the driver with such systems, but also evaluate the disability and discomfort glare for other road users.The results are demonstrating clearly, that the existing ADB systems do not cause additional glare for the road users and also do not lead to an increased subjective discomfort glare rating. The positive effect for the driver in enhancing the visibility at night is significant and improves safety at night time driving.
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