Analysis of Detection Distances and Road Safety of Modern Headlamps under Variation of Aim and Performance
2022-01-0960
03/29/2022
- Event
- Content
- In addition to the low - and high beam functions, modern headlamps also have the option of switching on only a part of the high beam. The so-called adaptive high beam is intended to increase the detection distance of objects and by that drastically improve the road safety. At the same time this function does not increase the glare for oncoming or preceding traffic. This is enabled through switching on or off the different segments of the high beam, depending on which and where other road users are recognized by the front camera. This massively increases the use of the high beam thus increasing road safety. In this study, the increase in the detection distance of objects on a straight line is statically investigated with a test person study. Furthermore, the glare of each of these three light functions is investigated. A vehicle with adaptive high beam and an oncoming vehicle are statically positioned on the test track and the detection distances and glare sensitivity are determined subjectively and metrologically by test persons. Already published studies have also shown that the headlamp aiming is subject to the natural tolerances of the vehicle and the environment. Therefore, the influence of the headlamp aiming on glare and detection distances is also investigated for all three light functions in order to draw conclusions about headlamp evaluation methods.
- Citation
- Hinterwaelder, C., Hamm, M., and Kobbert, J., "Analysis of Detection Distances and Road Safety of Modern Headlamps under Variation of Aim and Performance," SAE Technical Paper 2022-01-0960, 2022, .