Intelligent vehicle VS-LKA system function safety concept analysis method

A system function and concept analysis technology, applied in the direction of geometric CAD, can solve the problems of lack of effective safety mechanism, prolonging the effective takeover time, serious traffic accidents, etc.

Active Publication Date: 2020-07-10
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

The automatic driving assistance technology itself belongs to the active safety technology, but while it can effectively prevent the occurrence of hazardous events and reduce the degree of harm, it lacks its own effective safety mechanism. The over-belief will greatly prolong the effective takeover time, leading to more serious traffic accidents

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  • Intelligent vehicle VS-LKA system function safety concept analysis method
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  • Intelligent vehicle VS-LKA system function safety concept analysis method

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Embodiment Construction

[0081] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. Those skilled in the art should know that the following embodiments are not the only limitation to the technical solution of the present invention, and any equivalents made under the spirit of the technical solution of the present invention Changes or modifications shall be deemed to belong to the protection scope of the present invention.

[0082] The present invention establishes a method for analyzing the functional safety concept of the smart electric vehicle VS-LKA system at the vehicle level, which is designed for the automatic driving assistance system VS-LKA of smart electric vehicles at level L2 or below. The process logic is as follows: figure 1 shown.

[0083] This method first includes defining the vehicle functions of VS-LKA, and at the same time defining the relevant operating scenarios of VS-LKA, and determining the failure forms and the ...

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Abstract

The invention relates to an intelligent vehicle VS-LKA system function safety concept analysis method. According to the invention, the method comprises the steps: setting a VS-LKA related operation scene; determining failure forms and caused hazard events in different scenes, and evaluating each hazard event; determining an automobile safety integrity level of each event, formulating a function safety target for VS-LKA based on the automobile safety integrity level, and converting the function safety target into a function safety requirement and a technical safety requirement of VS-LKA. Through analysis of the VS-LKA vehicle layer function safety concept stage, corresponding safety control strategies can be formulated and corresponding fault-tolerant control algorithms can be designed in the later period, and therefore the purpose of effectively guaranteeing the life and property safety of passengers and other traffic participants is achieved.

Description

technical field [0001] The present invention relates to a functional safety analysis technology of an intelligent electric vehicle vision system (VS-LKA, Vision System of Lane Keep Assist) applied to lane keeping assistance, in particular to an automatic driving assistance system for intelligent electric vehicles at level L2 or below— VS-LKA's conceptual analysis method for vehicle-level functional safety. Background technique [0002] Whether it is high-level or low-level autonomous driving, it involves environmental perception, autonomous decision-making and real-time control. At present, the perception sensors widely used in the market include laser radar, millimeter wave radar, visual camera, etc. Among them, the visual camera is favored by consumers due to its processing system foundation, intuitive processing effect, low price, and "one head with multiple functions". . Vision cameras can be divided into monocular cameras, multi-eye cameras, fisheye cameras, etc. by t...

Claims

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Application Information

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IPC IPC(8): G06F30/15
Inventor 罗禹贡尹长林江发潮陈锐古谚谌王博王永胜于杰
Owner TSINGHUA UNIV
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