Automobile headlamp plays a key role in automobile lighting system and automobile performance safety system, and is an important part of automobile overall performance. With the continuous development of the times, automobile lamps have gradually changed from halogen lamps and tungsten filament lamps to LED lamps with better lighting intensity and longer service life. At present, LED lamps are more and more widely used, the technology is also improving, and the price is also declining. Therefore, LED lamps are the preferred scheme in the design of automobile lamps. When the two semiconductors are connected, they become PN junctions and emit light. Conducting electricity in one direction is the characteristic of PN. If both sides of PN are pressurized to the positive pole, the electrons will move immediately and form a composite in an interval. In this process, the electrons will fuse from high to low, and then emit a certain amount of light energy. This principle is used for led to emit light.

According to the current development situation, most of the models that use LED lamps have less diversified functions, and almost only simple and necessary high beam and low beam functions. While some traditional headlights, although they have the function of automatic adaptation, are unable to adapt to some complex road conditions due to their complex design structure, simple light distribution and low intelligence. In order to solve this problem, AFS adaptive headlamp system and ADB adaptive high beam system are introduced. Because of their unique functions and intelligence, the lamps in the headlights are rotated 8 ° to 15 ° left and right according to the direction of the vehicle to illuminate the dead corners of the corners; The front fog lamp is used to illuminate the bend. When turning, the fog lamp on the inner side of the corresponding bend will light up the dead corner of the bend. AFS principle: the signal collector installed on the steering gear collects signals and transmits the collected signals to the microcomputer for analysis and processing. After the microcomputer completes processing, the processed signals are transmitted to the actuator in the form of electric signal drive.

For example, when we turn left or right, the signal collector will collect the signal of left or right turn, and the signal collector will transmit the signal to the microcomputer. After the microcomputer processing, the signal of left or right turn will be transmitted to the actuator, so that the light can be directed to the left or right of our turn. The direction and angle of light illumination are equal to the steering angle, and there is a compensation angle under certain circumstances. This utility model patent also has the functions of automatic reset and memory, which can turn off the engine when the direction is not adjusted, and the headlamp can be adjusted automatically.

ADB system: with the development of machine vision, complex sensing, array light source and other technologies, as well as the market demand for intelligent driving assistance, ADB comes. It is an intelligent high beam control system that can adaptively change the high beam according to the road conditions. According to the driving state, environmental state and road vehicle state of the vehicle, ADB system automatically turns on or off the high beam for the driver.

At present, the intelligent design of automobile headlights has been realized, and using led to realize the function of headlights has gradually become the key research direction of automobile manufacturers, especially the design of AFS and ADB intelligent lamp systems mentioned in this paper has been widely concerned. With the development of automobile production in our country, the design of lamp is constantly innovating. Our younger generation is in the tide of scientific and technological development. We should seize the opportunity to design and manufacture intelligent lamp systems that meet the needs of consumers, and change our lives with science and technology.