Quote:
Originally Posted by opasha
Shawn, is this the variable light distribution in action?
...
|
That is actually Glare Free High Beams (aka Anti Dazzle and aka Selective Beam).
The BMW Selective Beam (anti-dazzle High-Beam Assistant) automatically controls the high-beam headlights, depending on the ambient light conditions and traffic situation, ensuring excellent visibility when driving at night. The system monitors the presence of vehicles driving ahead or oncoming traffic and continuously adjusts the high-beam headlights to avoid dazzling other road users.
Variable light distribution is for the Low Beams, and it also has an anti-dazzle function:
A winding road at night: the xenon headlights adapt to the angle of the curve ahead, and the headlight beam remains on the road. To calculate the course of the road, sensors detect the cornering angle, yaw and driving speed. Adaptive headlights guarantee optimum vision on dark roads, earlier recognition of the course of the route and possible hazards. Higher speeds require the driver to look farther ahead in order to react in time – the front headlights are therefore raised. In urban traffic, they are lowered automatically and illuminate the road directly in front of the vehicle even more efficiently without any risk of dazzling the oncoming traffic.
Variable Light Distribution has several different modes of operation (for Low Beam):
1 - City Light: Shallow and Very Wide Beam Pattern active from 0 - 50kph (30MPH) (Both Headlamps are Panned outwards 12° horizontal from center and 0.7° lowered vertically)
2 - Standard Light: Same Basic Beam Pattern as with 8S4 Enabled and Headlamp Switch Set to Auto. Active from 50 - 110kph (30MPH - 68MPH)
3 - Guiding Fog Light - Shallow and Wider Beam Pattern Enabled with the Front Fog Lamps On and Headlamp Switch in Auto and Speed 0 - 110kph (Both headlamps are panned outwards 8° horizontal from center and lowered 0.7° vertically)
4 - Highway Light - Long Throw Pattern illuminating approx. 25% further than Standard Light. Active from 110 to 250kph (68MPH- 155MHP). (Driver's Side Headlamp is panned 3.5° outwards Horizontal from center and lowered 0.25° vertically, while the passenger side headlamp is raised 0.2° vertical)"