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A Compensation Control Method for Adaptive Headlight Angle Error Based on ASTSM

A technology of corner error and compensation control, which is applied to vehicle components, signal devices, optical signals, etc., can solve problems such as no guarantee of real-time robustness, improve compensation accuracy and control stability, suppress chattering, reduce Effect of Small Adaptive Corner Error

Active Publication Date: 2021-04-20
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent 201710096515.X provides a method, device and system for adjusting the inclination angle of headlights of a vehicle. The inclination angle of the lighting is adjusted dynamically in real time, but it does not give a method to ensure its real-time robustness

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  • A Compensation Control Method for Adaptive Headlight Angle Error Based on ASTSM
  • A Compensation Control Method for Adaptive Headlight Angle Error Based on ASTSM
  • A Compensation Control Method for Adaptive Headlight Angle Error Based on ASTSM

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] The control system architecture is as figure 1 As shown, the flow of the control system to implement control is as follows figure 2 shown.

[0034] The ASTSM-based automotive adaptive headlight angle compensation control method proposed by the present invention comprises steps:

[0035] S1. In order to ensure that the absolute error between the actual headlight angle and the target angle is within 5°, a headlight angle compensation controller is designed based on the ASTSM algorithm;

[0036] S2, designing the adaptive law of ASTSM control gain in the step S1;

[0037] S3, constructing a Lyapunov function to analyze the stability of the designed controller.

[0038] Further, the specific process of S1 is:

[0039] Define the sliding mode variables:

[0040] s=δ-δ i (1)

[0041] Where: δ is the target rotation angle of the headlight, δ i The actual cornerin...

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Abstract

The invention discloses an ASTSM-based adaptive headlight angle error compensation control method, which belongs to the technical field of automobile headlights. The ASTSM-based adaptive headlight angle error compensation control method involved in the present invention comprises the following steps: 1) Proposing an adaptive super spiral sliding mode (Adaptive Super Twisting Sliding Mode, ASTSM) algorithm to design an adaptive headlight Angle error compensation controller; 2) Adaptive law of control gain in design step 1) 3) Stability analysis of the designed controller, and stability conditions are given. The control algorithm adopted in the invention uses the integral value of the sign function as the output, which can effectively suppress the chattering of the control system and quickly compensate the horizontal and vertical corner errors of the headlight.

Description

technical field [0001] The invention belongs to the technical field of automobile headlights, in particular to an ASTSM-based self-adaptive headlight angle error compensation control method. Background technique [0002] With the development of the economy, the number of global car ownership has increased year by year, and the driving environment has become more complex and changeable. The corresponding traffic accidents have also increased year by year, among which the number of accidents related to lighting is quite considerable. Headlights are an important part of the active safety of automobiles, and their working performance directly affects the personal safety of drivers and other road users. The Adaptive Front-lighting System (AFS) can be automatically leveled to reduce glare, effectively improving the driving safety of the own vehicle and other vehicles. [0003] Chinese patent 201610363141.9 provides an intelligent control device for automobile headlights and a met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q1/08B60Q1/076
CPCB60Q1/076B60Q1/08
Inventor 耿国庆韦斌源孙丽琴罗石秦洪武王波
Owner JIANGSU UNIV