Headlamp adaptive control method and device

Abstract

The invention discloses headlamp adaptive control method and device. The method comprises the steps of: (1) acquiring the current speed v of an automobile in real time, and acquiring the safe stopping distance S of the automobile at the current speed; (2) acquiring a horizontal deflection angle omega corresponding to the optimum lighting position of the headlamp; (3) acquiring a vertical deflection angle beta corresponding to the optimum lighting position of the headlamp; and (4) outputting control signals to control the turning of the headlamp in real time. The device comprises a control unit (1), and a detection unit (2) and a driving mechanism (3) which are respectively connected with the control unit (1), wherein the detection unit (2) comprises a speed sensor (21), a steering wheel angel sensor (22), a front ride height sensor (23), a rear ride height sensor (24), a sunshine and rain sensor (25) and an acceleration sensor (26). The invention has the advantages of large lighting range, good lighting effect, no reflected glare, simple structure, accurate control, good environmental suitability, safety, reliability and comfortable drive.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an adaptive control method and device for automobile headlights. Background technique [0002] The irradiation direction of traditional car headlights is parallel to the body and cannot be deflected with the adjustment of the direction of the vehicle. Therefore, in practical applications, there are often many problems, such as: the effectiveness of lighting in urban areas with complex traffic conditions at night will be reduced, especially when there are dark areas of lighting when turning; the front and rear loads of the vehicle change, or start And when accelerating and braking while driving, the headlights will move along with the vehicle body, resulting in a reduction in the irradiation range; when the vehicle is driving in rainy days, the water on the ground reflects the light of the headlights, which is prone to reflective glare. It seriously affects the driver's judgment on the...

AI Technical Summary

Problems solved by technology

[0002] The irradiation direction of traditional car headlights is parallel to the body and cannot be deflected with the adjustment of the direction of the vehicle

Therefore, in practical applications, there are often many problems, such as: the effectiveness of lighting in urban areas with complex traffic conditions at night will be reduced, especially when there are dark areas of lighting when turning; the front and rear loads of the vehicle change, or start And when accelerating and braking while driving, the headlights will move along with the vehicle body, resulting in a reduction in the irradiation range; when the vehicle is driving in rainy days, the water on the ground reflects the light of the headlights, which is prone to reflective glare. Seriously affect the driver's judgment on the road ahead, resulting in a reduction in the safety performance and driving comfort of the car

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