Headlamp irradiation angle adjusting method, device, system and equipment, and storage medium

Abstract

The invention discloses a headlamp irradiation angle adjusting method, device, system and equipment, and a storage medium. The method comprises the steps: obtaining the longitudinal acceleration information of a vehicle, a height variation of a rear axle vehicle body, a first vehicle parameter and a second vehicle parameter; judging whether the vehicle speed corresponding to the vehicle longitudinal acceleration information exceeds a first preset threshold value or not; if so, calculating a vehicle body pitch angle according to the rear axle vehicle body height variation and the first vehicleparameter, and adjusting a vehicle headlamp irradiation angle according to the vehicle body pitch angle; and if not, calculating the vehicle body height variation according to the rear axle vehicle body height variation and the second vehicle parameter, and adjusting the vehicle headlamp irradiation angle according to the vehicle body height variation. The number of height sensors used when a headlamp height automatic adjusting function is achieved is reduced, and whole vehicle cost and whole vehicle weight can be reduced.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method, device, system and storage medium for adjusting the irradiation angle of a headlight. Background technique [0002] Automatic headlight height adjustment is a function to improve driving convenience and comfort. Its principle is to calculate the target irradiation angle based on the vehicle body height and pitch attitude information, and control the rotation of the adjustment motor to adjust the irradiation angle of the headlights to ensure that the driver Obtain a good and stable front illuminated field of view. [0003] In the prior art, front and rear axle suspension height sensors are generally used to directly obtain the height of the vehicle body and calculate the pitch angle of the vehicle body, so as to adjust the illumination angle of the light according to these information. The specific adjustment strategy is: [0004] In the static or low-speed stage of t...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the problem that the existing technical scheme needs to rely on multiple height sensors, and innovatively proposes a headlight automatic adjustment scheme using a single height sensor to solve the problem of using a large number of height sensors and high cost when the headlight height automatic adjustment function is used The problem

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