Fault detection and diagnostic coverage for the domain control units of vehicle E/E systems on functional safety

Yeon, KyuBong; Lee, Duho

doi:10.1109/icems.2017.8056361

2017 20th International Conference on Electrical Machines and Systems (ICEMS) 2017

DOI: 10.1109/icems.2017.8056361

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Fault detection and diagnostic coverage for the domain control units of vehicle E/E systems on functional safety

KyuBong Yeon

Duho Lee

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2022

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“…In the equations above, the failure rate of the device is divided into four different components [52,53]: In other words, DC is the ratio of the probability of detected failures to the probability of all the dangerous failures and is a measure of system ability to detect failures [54,55]. Instead, SFF indicates the probability of the system failing in a safe state so it shows the percentage of possible failures that are self-identified by the device or are safe and have no effect [56,57].…”

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Logic Solver Diagnostics in Safety Instrumented Systems for Oil and Gas Applications

Catelani

Ciani

Patrizi

2022

Safety

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A safety instrumented system (SIS) is a complex unit composed of a set of hardware and software controls which are expressly used in critical process systems. A SIS should be specifically designed to obtain the failsafe state of the monitored plant or maintain safety of the procedure or a process when unacceptable or dangerous conditions occur. This paper focuses on condition monitoring and different diagnostic solutions used in safety instrumented systems, such as limit alarm trips, on-board diagnostics, and logic solver diagnostics. A case study consisting of the design of a safety loop using standard IEC 61508 for a complex safety instrumented system in the oil and gas field is presented in the paper using a diagnostics-oriented approach. The presented methodology aims at reaching the optimal tradeoff between IEC 61508 and the market requirements focusing on the best technological solutions to optimize diagnostics and safety and minimize the system’s response time in case of failure. The results of the application emphasize the importance of an accurate diagnostic strategy on safety instrumented systems for oil and gas plants.

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confidence: 99%

Logic Solver Diagnostics in Safety Instrumented Systems for Oil and Gas Applications

Catelani

Ciani

Patrizi

2022

Safety

View full text Add to dashboard Cite

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Fault detection and diagnostic coverage for the domain control units of vehicle E/E systems on functional safety

Cited by 1 publication

References 2 publications

Logic Solver Diagnostics in Safety Instrumented Systems for Oil and Gas Applications

Logic Solver Diagnostics in Safety Instrumented Systems for Oil and Gas Applications

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