Safety analysis of a complex system using component-oriented fault trees
US10095813B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Oct 10, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/82
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A safety-analysis system for a complex system such as an aircraft includes a system modeler and model-analysis system. The system modeler is configured to receive component fault-based models of respective components of which a system is composed, such as from a library of component fault-based models in storage. The component fault-based models include transfer functions expressed as fault trees each of which describes behavior of a respective component in an event of a failure of the respective component or of an input to the component. The system modeler is also configured to assemble the component fault-based models into a system fault-based model of the system, with the system fault-based model including a transfer function expressed as an assembly of the fault trees of the component fault-based models. The model-analysis system, then, is configured to perform a safety analysis using the system fault-based model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.