Component-Based Hazard Analysis for Mechatronic Systems

Claudia Priesterjahn, Christoph Sondermann-Wölke, M. Tichy, C. Hölscher
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引用次数: 11

Abstract

One cannot image today's life without mechatronic systems, which have to be developed in a joint effort by teams of mechanical engineers, electrical engineers, control engineers and software engineers. Often these systems are applied in safety critical environments like in cars or aircrafts. This requires systems that function correctly and do not cause hazardous situations. However, random errors due to wear or external influences cannot be completely excluded. Consequently, we have to perform a hazard analysis for the system. Further, the union of four disciplines in one system requires the development and analysis of the system as a whole. We present a component-based hazard analysis that considers the entire mechatronic system including hardware, i.e. mechanical and electrical components, and software components. Our approach considers the physical properties of different types of flow in mechatronic systems. We have identified reusable patterns for the failure behavior which can be generated automatically. This reduces the effort for the developer. As cycles, e.g. control cycles, are an internal part of every mechatronic system our approach is able to handle cycles. The presented approach has been applied to a real-life case study.
基于部件的机电系统危害分析
人们无法想象今天的生活没有机电系统,它必须由机械工程师、电气工程师、控制工程师和软件工程师团队共同努力开发。这些系统通常应用于汽车或飞机等安全关键环境。这就要求系统功能正常,不会造成危险情况。但是,不能完全排除磨损或外部影响引起的随机误差。因此,我们必须对系统进行危害分析。此外,四门学科在一个系统中的结合需要对整个系统进行发展和分析。我们提出了一个基于组件的危害分析,考虑了整个机电系统,包括硬件,即机械和电气组件,以及软件组件。我们的方法考虑了机电系统中不同类型流的物理性质。我们已经确定了可以自动生成的故障行为的可重用模式。这减少了开发人员的工作量。由于循环,例如控制循环,是每个机电系统的内部部分,我们的方法能够处理循环。所提出的方法已应用于现实生活中的案例研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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