Please help explain the working principle of car headlamp follow the steering?
AFS, to achieve follow-up steering lighting in a variety of ways, generally divided into light group with the steering wheel and additional light group two categories. Light group with the steering wheel that can be based on the direction of travel 8 ° ~ 15 ° deflection, most models equipped with AFS system are used in this way. The working principle is to turn, the steering wheel coaxial driven potentiometer resistance resistance changes, installed in the steering signal on the signal acquisition Transmission to the car microcomputer for analysis and processing, and then driven by the form of electrical signals to the implementation of components, combined with the steering wheel and speed perception signal to achieve the steering group control of the system is relatively complex, so the cost is higher, so more Equipped with high-end models, but by means of additional light group, the same can be achieved with the effect of steering lighting. This bending effect with the lighting of the working principle is relatively simple: If the speed is lower than a certain value and start playing direction, The corresponding side of the headlamps will be connected to the light group will open, in advance to the detour situation.Of course, its accuracy and lighting range is still slightly inferior to the AFS system
