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An Adaptive Driving Beam System based on the Angle Information of the Opposite Vehicle

When driving on the highway, the strong high beam coming from the opposite vehicle will seriously threaten the safety of the drivers. To avoid traffic accidents, the Adaptive Driving Beam (ADB) has been proposed in recent years. This automatic adjustment technique can modify the lighting shape of the high beam according to the position of the opposite vehicle, which can prevent dazzling and improve the safety when driving on road. In this paper, an angle detecting ADB technique is proposed, which can calculate and predict the angle of the vehicle coming from the opposite road and turn off the corresponding LEDs to avoid causing dazzling. The adaptive beam adjustment algorithm is analyzed and simulated by MATLAB, and is implemented on a NXP S32K144 platform. CAN bus is introduced to transmit the controlling instruction to the LED matrix in the headlight. The designed ADB system can extremely reduce the risk when driving at night and has a broad prospect in the future automotive market.