Adaptive Forward Lighting (AFL+)
A new generation of Opel bi-xenon Adaptive Forward Lighting (AFL+) adapts its intensity and range to suit prevailing driving and road conditions using nine different lighting functions.
AFL+ is based on powerful bi-xenon, gas-discharge headlamps. With conventional bi-xenon headlamps, the low beam light/dark boundary is provided by a bulb shield. Instead of this shield, AFL+ technology features a free-form cylinder automatically rotating in front of the xenon bulb, which has several precisely calculated contours on its surface to produce various light beam patterns. Bi-xenon headlamps project low and high beams from just one xenon bulb per headlamp. The light spectrum and intensity stay the same when switching between modes, reducing eye strain.
AFL+ headlamps also come with LED daytime running lamps. Compared to conventional low beam headlamps, these reduce fuel consumption because they require considerably less electrical power. LEDs offer an extraordinary service life that is up to 30 times longer than H7 halogen bulbs.
In order to ensure precise functionality, AFL+ sensors measure speed, yaw rate, steering angle and rain; the high beam assistant’s optical sensor collects information on road profile, driving status and visibility conditions. The two sensors continually feed information to the control electronics. In a split second, the system’s software decides which lighting function is appropriate for the prevailing driving situation and adjusts the headlamps accordingly.
A control motor rotates the headlamp cylinder to the required contour. This alters the light pattern of the headlamp beam. The module is on a pivot to enable optimal positioning for the curve light. Opel curve and cornering lights are especially effective as the headlamps’ three-dimensional design ensures the light beam is not obstructed. Despite their very clean and simple appearance, those headlamps have a very sophisticated design.
The system features nine lighting functions.
- High Beam Light Assistant is an innovation in this segment and offers a considerable safety advantage when driving in the dark. The Assistant automatically activates the High Beam Light for better road illumination and improved visibility. With the help of an optical sensor integrated in the interior mirror mounting, the system recognizes the headlamps or tail lights of other vehicles and automatically switches the headlamps to low beam to prevent blinding other road users.
- High Beam Light (already included in the previous AFL generation) provides maximum headlamp beam output and range. The High Beam Light optimally illuminates the full width of the road. The headlamps brighten from 35 to 38 watts.
- At speeds under 50 km/h, Town Light provides a wider, symmetrical beam with reduced range, helping drivers see pedestrians at the roadside better. The Town Light’s beam intensity is less than the normal low beam as additional light sources – such as street lighting – are available.
- Pedestrian Area Light is activated automatically at speeds of up to 30 km/h. It is designed especially for zones where the driver must exercise extreme caution, such as residential areas with corresponding traffic restrictions. The function adjusts the cone of light for both headlamps by eight degrees toward each roadside. With this light, pedestrians and children playing next to the road – who often cannot properly judge the speed of a moving vehicle – can be seen earlier, particularly when cars are also parked on the roadside.
- Country Road Light provides a brighter and wider light cone to both sides of the road than a conventional low beam. This helps drivers see animals at the sides of the road earlier. It is activated between 50 and 100 km/h and projects a beam 70 meters ahead. Country Road Light provides a brighter and wider light cone to both sides of the road than a conventional low beam. It is activated between 50 and 100 km/h and projects a beam 70 meters ahead.
- Highway Light intensifies and slightly raises the headlamp beam when there is no risk of blinding oncoming traffic and the smoother road surface causes fewer vehicle body movements. Highway Light creates a 140 meter long beam, improving illumination of the left-hand roadside and brightens the lamps from 35 to 38 watts to improve noticeable visibility. The Highway Light activates automatically above 100 km/h, but only when the steering angle sensor indicates that the road’s curve radii do not match those of a country road. Highway light intensifies and slightly raises the headlamp beam where there is no risk of blinding oncoming traffic and smoother road surface causes few vehicle body movements.
- Adverse Weather Light is activated when the rain sensor detects a certain amount of moisture on the windshield or the wipers are switched on and off in rapid succession. The light output is then distributed asymmetrically: The right headlamp beam intensity increases from 35 to 38 watts so the driver can see the lane markings better, and the left headlamp beam decreases from 35 to 32 watts and shortened slightly to reduce the risk of blinding oncoming drivers, which can often happen on wet, reflective road surfaces.
- Dynamic Curve Light (already included in the previous AFL generation) ensures improved illumination around bends by swiveling the bi-xenon headlamps up to 15° right and left of the vehicle into the oncoming curve. The Curve Light angle is determined by the car’s speed and steering angle. A new addition is the sport switch on the FlexRide, which, when activated, enables a faster response from AFL.
- Static Cornering Light (already included in the previous AFL) illuminates an area to the right or left of the vehicle up to a 90 degree angle, improving maneuvering in poorly lit areas, such as on dark access roads. It is activated at speeds below 40 km/h or when the car is put into reverse gear. A new function is the delayed switch over to normal low beam light, making drive-away maneuvers easier.