Adaptive Headlights: Abstracts
Adaptive Headlights: Abstracts
Adaptive Headlights: Abstracts
Abstracts
Adaptive headlights are an active safety feature designed to make driving at night or in low-light
conditions safer by increasing visibility around curves and over hills. When driving around a
bend in the road, standard headlights continue to shine straight ahead, illuminating the side of the
road and leaving the road ahead of you in the dark. Adaptive headlights, on the other hand, turn
their beams according to your steering input so that the vehicle’s actual path is lit up.
Adaptive headlights are also sometimes called active headlights or adaptive front-lighting
systems.
Adaptive headlights are helpful when driving on winding roads at night, during twilight, or in
other low-light conditions. They can address many potentially dangerous situations, including:
Adaptive headlight systems are made up of several subcomponents that are monitored and
controlled by an electronic control unit (ECU). The subcomponents include:
wheel speed sensors that monitor the speed of rotation of each wheel;
a steering input sensor that monitors the angle of the steering wheel; and
stepper motors attached to each headlight.
The data from the sensors are interpreted by the ECU, which then determines the vehicle’s
speed, and the angle and length of the curve it is negotiating. The ECU directs the motors
attached to each headlight to move the beam to the degree specified by the ECU. Most adaptive
headlight systems can turn the headlights up to 15 degrees per side. Newer versions of the
advanced headlight system have even larger ranges of motion.
Block Diagram:
LDR Buzzer