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Curve lighting control method and system for dot-matrix headlights based on map self-learning

A dot-matrix, self-learning technology, applied to vehicle components, optical signals, electrical components, etc., can solve problems such as the lag of solid-state MAP meters, and achieve the effects of improving output accuracy, improving output effects, and strong anti-interference ability

Active Publication Date: 2022-05-27
ELECTRICITY FACILITIES GUANGRI GUANGZHOU CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a dot-matrix car light curve intelligent control method based on MAP self-learning, which can solve the problem of obvious lag in the transient working condition of the solid-state MAP meter, accurately estimate the output, and improve the transient working condition. The output accuracy under the condition, improve the output effect

Method used

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  • Curve lighting control method and system for dot-matrix headlights based on map self-learning
  • Curve lighting control method and system for dot-matrix headlights based on map self-learning
  • Curve lighting control method and system for dot-matrix headlights based on map self-learning

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Embodiment 1

[0052] A control algorithm of a dot-matrix LED intelligent vehicle light curve lighting system integrating MAP self-learning algorithm, and its structural block diagram is as follows figure 2 shown, including the following steps:

[0053] Step 1, obtain the deflection angle of the steering wheel through the steering wheel deflection angle sensor; obtain the current vehicle speed in real time through the speed sensor;

[0054]Step 2: Establish a functional relationship between the brightness of the LED lighting and the rotational speed of the car and the steering wheel deflection angle. The functional relationship is defined as the following form

[0055] L v =f Lv (n,θ) (12)

[0056] Where L is the lighting brightness of the LED, n is the current speed of the car, and θ is the current steering wheel deflection angle of the car.

[0057] Step 3: Check the table to input the current speed of the car n , the grid points of the current deflection angle θ of the car are divi...

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Abstract

The present invention provides a dot-matrix car light curve intelligent control method and system based on MAP self-learning. The vehicle speed n and the steering wheel deflection angle θ are obtained in real time through relevant on-board sensors, and the LED lighting brightness and vehicle speed are established. The functional relationship of steering wheel deflection angle; established a two-dimensional MAP table with vehicle speed n and steering wheel deflection angle θ as input; for different vehicle speed n i and steering wheel deflection angle θ j , By querying the two-dimensional MAP table, the value of the table point can be obtained. The bilinear interpolation method is used to improve the two-dimensional MAP table, and the brightness of the car lights is controlled according to the corresponding value in the MAP table. Solve the problem of obvious hysteresis caused by solid-state MAP meters under transient conditions, and accurately estimate the output. The invention improves the output precision under the transient working condition and improves the output effect.

Description

technical field [0001] The invention belongs to the technical field of automotive lamp lighting, and relates to a MAP self-learning-based dot-matrix vehicle lamp curve lighting intelligent control method and system. Background technique [0002] The headlight is an important part to ensure the safe operation of the car. The longer the illumination distance of the headlight and the more reasonable the light distribution characteristics, the higher the safety of the car. Lighting problems are often the main cause of traffic accidents when driving at night. During the driving process of the car, more than 95% of the external environment information is collected through human observation. The accuracy of such information will directly affect the safety of car driving. [0003] The intelligent control system of automobile headlights can automatically change the working state of the headlights according to the state of the vehicle, the conditions of the road and the conditions of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q1/08B60Q1/12H05B45/00
CPCB60Q1/08B60Q1/12H05B45/00
Inventor 刘秀娇付河赖祖添梁宝雯
Owner ELECTRICITY FACILITIES GUANGRI GUANGZHOU CO LTD