Lane keeping assistant system security analysis method based on system theory hazard analysis

A lane keeping and auxiliary system technology, applied in the field of unmanned driving technology safety engineering, can solve problems such as hazard analysis methods, and achieve the effects of comprehensive analysis, safety improvement, and good analysis results

Active Publication Date: 2019-10-29
BEIHANG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, there is little research on the system theory hazard analysis method in the lane keeping assist system in unmanned driving.

Method used

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  • Lane keeping assistant system security analysis method based on system theory hazard analysis
  • Lane keeping assistant system security analysis method based on system theory hazard analysis
  • Lane keeping assistant system security analysis method based on system theory hazard analysis

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Embodiment Construction

[0021] specific implementation plan

[0022] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail and in-depth below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, the input of system theory hazard analysis is the system description and design model. In the application scenario of the present invention, it is the description and design model of the lane keeping assist system. Layer control structure, identify the unsafe control behavior, determine how the unsafe control behavior occurs according to the unsafe control behavior, analyze the dangerous situation, and refine the safety constraints, so as to improve the safety performance of the lane keeping assist system.

[0024] The present invention is aimed at the safety analysis process of the lane keeping assist system, such as figure 1 System theory hazard analy...

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Abstract

The invention provides a lane keeping assistant system security analysis method based on system theory hazard analysis, and belongs to the field of unmanned technique security engineering. The lane keeping assistant system security analysis method comprises the steps of (1) establishing a layering control structure of a lane keeping assistant system, and (2) based on the layering control structure, recognizing insecure control behaviors, and obtaining final security constraints that SC1, if a correct steering indicator is started, that is to say, the deviation direction is the same as the direction of the steering indicator, the lane keeping assistant system is not allowed to take a correction measure; SC2, if lane switching for a vehicle is conducted on the condition that the steering indicator is not correctly utilized, the lane keeping assistant system needs to give a warning to a driver and provide the correction measure; SC3, if the driver does not respond to a warning sign and continues to drive the vehicle out of a lane, the lane keeping assistant system needs to provide the correction measure. Compared with an existing security analysis method, the fault coverage area is wider, analysis is more comprehensive, and a better analysis effect is achieved with regard to modern complicated security demanding systems.

Description

technical field [0001] The invention belongs to the field of safety engineering of unmanned driving technology, and relates to a safety analysis method of a Lane Keeping Assistant (LKA for short) system based on system theory hazard analysis. Background technique [0002] In recent years, unmanned driving technology has developed rapidly. With the wide application of unmanned driving systems, the complexity of the system is getting higher and higher, and the interaction between subsystems is also increasing. Safety issues have become a major concern. The safety analysis method can establish an accident model, conduct safety analysis on the system, obtain possible accidents and dangers, and put forward safety requirements for possible dangerous links to improve the safety of unmanned driving systems. [0003] In the traditional analysis method, it is considered that the occurrence of events is a chain, which is suitable for traditional mechanical systems. It is generally beli...

Claims

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Application Information

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IPC IPC(8): B60W50/14G06K9/00G06F8/20
CPCB60W50/14G06F8/20G06V20/588
Inventor 张辉刘春璐罗乾悦
Owner BEIHANG UNIV
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