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Method for analyzing the safety of a signal chain in an electronic control system of a vehicle

An electronic control system and signal chain technology, applied in the field of vehicles, can solve the problems of high price, high R&D cost, and difficult design, and achieve the effect of reducing requirements, difficulty and cost

Active Publication Date: 2020-07-03
CONTINENTAL AUTOMOTIVE SYST SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve a higher safety level for the vehicle control system, it is necessary to increase the requirements for the safety parameters of each component of the vehicle, so the design is difficult, the development cost is high, and the price is expensive

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  • Method for analyzing the safety of a signal chain in an electronic control system of a vehicle
  • Method for analyzing the safety of a signal chain in an electronic control system of a vehicle
  • Method for analyzing the safety of a signal chain in an electronic control system of a vehicle

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Embodiment Construction

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the described embodiments, all other embodiments obtained by those skilled in the art without creative efforts also fall within the scope of the present invention.

[0016] The road vehicle functional safety standard ISO26262 grades the safety of vehicle control systems according to the degree of hazard and risk, and is divided into four safety integrity levels (Automotive Safety Integrity Level, referred to as ASIL) from ASILA to ASILD, of which ASIL D is the highest level , with the highest safety requirements.

[0017] According to the road vehicle functional safety ...

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Abstract

The invention discloses a method for analyzing security of a signal chain in an electronic control system of a vehicle. The method for analyzing the security of the signal chain in the electronic control system of the vehicle comprises the steps of determining an initial security demand of the signal chain and a security grade of the signal chain; using a fault tree analysis method to determine areason event which causes that the initial security demand is not satisfied and determine the security grade of the reason event; according to function security decomposition, decomposing the securitygrade of the reason event to generate an optimized signal chain; determining an updated security demand of the optimized signal chain and the security grade of the optimized signal chain; and using the fault tree analysis method to determine a reason event which causes that the updated security demand is not satisfied and determine the security grade of the reason event.

Description

technical field [0001] The present invention relates to the field of vehicle technology, in particular, to a method and device for analyzing the safety of a signal chain in an electronic control system of a vehicle. Background technique [0002] With the improvement of public road infrastructure and the popularization of the use of motor vehicles, the traffic is becoming more and more busy, and the traffic accidents are increasing day by day. sexual issues. [0003] The safety of the vehicle refers to the performance of the vehicle to avoid accidents during driving and ensure the safety of pedestrians, drivers and vehicle members. When developing and designing vehicles, we should focus on ensuring the safety of the vehicle's mechanical structure and control system. In order to achieve a higher safety level for the vehicle control system, it is necessary to increase the requirements for the safety parameters of each component of the vehicle, so the design is difficult, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W50/00
CPCB60W50/0098
Inventor 王方方林杰同
Owner CONTINENTAL AUTOMOTIVE SYST SHANGHAI
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