High beam assistant
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The high beam assistant is a safety / comfort element for motor vehicles that automates the dimming and fading of the high beam in the dark. It detects oncoming or illuminated vehicles driving ahead and controls its own headlights by fading in and out so that the light conditions are optimally used, the own light cone should not dazzle the other vehicles.
The component is one of the driver assistance systems , has been on the German market since 2005 and is intended to offer more safety and driving comfort when driving at night.
functionality
The high beam assistant is controlled by a camera sensor attached to the front of the interior mirror , which registers the headlights of oncoming vehicles and the rear lights of vehicles in front from a distance specified by the manufacturer. The assistant switches the high beam on and off automatically, with the response times being set so that other road users are not dazzled. An image processing algorithm is used for this, which recognizes other vehicles and can calculate the distance precisely. The system is standardized to imitate human switching behavior and analyzes the brightness and color of a light source in the millisecond range in order to ensure optimal lighting conditions. The system also reacts to ambient lighting, for example within built-up areas.
In Germany, the first high beam assistant was introduced in 2005 in the BMW E65 . In BMW vehicles, the high-beam assistant is activated on the light switch using the "Automatic light" button and can be deactivated at any time by manually operating the light steering column stalk.
Adaptive high beam assistant
With the latest lighting technology, the adaptive high beam assistant (adaptive cut-off line, sliding headlight range control ), the headlights are coupled with a camera with intelligent image analysis. The camera is able to control the range of the headlights and achieve ranges of up to 300 m - without dazzling other road users: the light / dark boundary always ends under the bumper of the next vehicle. If the camera does not recognize any other road users, the high beam is switched on automatically. Smooth transitions between all lighting scenarios ensure that the road is always optimally illuminated for the driver, without sudden changes in light. This makes it easier for the eyes to adapt to the new light setting.
The Daimler AG is an adaptive beam assistant, wherein the range of the variable controllable spotlight because of the distance measurement each continuously readjusted and depending on the distance of the preceding vehicle or the oncoming vehicle to be adjusted. The component mostly requires xenon headlights . It was introduced in the Mercedes-Benz 212 series in 2009 .
Glare-free high beam
The glare-free high beam , also known as the “vertical cut-off line”, is a special type of high beam in motor vehicles. It is the latest high beam assistant technology. It follows the principle of a high beam that is always on . Its function is based on the interaction of a front camera in the vehicle's windshield as well as software for image processing and lighting technology .
Web links
Individual evidence
- ↑ Light sources - light systems . In: hella.com . Retrieved April 5, 2016.
- ↑ Tobias Söllner: Audi - the leading brand in lighting technology . In: audi-mediacenter.com . January 23, 2013. Archived from the original on April 5, 2016. Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved April 5, 2016.
