Safety-Related Availability in the Power Supply Domain
The automotive industry is currently driven by the megatrends electrification, automated driving and connectivity. To cope with these trends, new functionalities and electrical and/or electronic (E/E) systems need to be developed and deployed. Independent of the implementation of E/E systems, their...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2022-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9765464/ |
| _version_ | 1828791642296942592 |
|---|---|
| author | Philipp Kilian Oliver Koller Patrick Van Bergen Carsten Gebauer Martin Dazer |
| author_facet | Philipp Kilian Oliver Koller Patrick Van Bergen Carsten Gebauer Martin Dazer |
| author_sort | Philipp Kilian |
| collection | DOAJ |
| description | The automotive industry is currently driven by the megatrends electrification, automated driving and connectivity. To cope with these trends, new functionalities and electrical and/or electronic (E/E) systems need to be developed and deployed. Independent of the implementation of E/E systems, their power input shall be ensured by the power supply system as a shared resource – leading to increased functional safety requirements for power supply systems. If the loss of an item’s functionality can lead to a hazardous event, a safety goal (SG) specifying a safety-related availability (SaRA) requirement is derived. Thereby, switching to passive mode typically cannot be considered a safe state. To address an SG specifying a SaRA requirement, fault avoidance, fault forecasting and/or fault tolerance measures can be applied. In the case of fault tolerance measures implemented by redundancy, which leads to fail-active behavior, the performance of the backup system during nominal operation and after the first fault can be further refined. In this study, SaRA in the context of ISO 26262 is evaluated in detail and mapped to an example of the power supply domain. |
| first_indexed | 2024-12-12T02:54:37Z |
| format | Article |
| id | doaj.art-79b469f7a24542f1a1f88ebf28eeac77 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-12T02:54:37Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-79b469f7a24542f1a1f88ebf28eeac772022-12-22T00:40:48ZengIEEEIEEE Access2169-35362022-01-0110478694788010.1109/ACCESS.2022.31712619765464Safety-Related Availability in the Power Supply DomainPhilipp Kilian0https://orcid.org/0000-0002-5012-7259Oliver Koller1Patrick Van Bergen2https://orcid.org/0000-0002-0422-6838Carsten Gebauer3Martin Dazer4https://orcid.org/0000-0002-5314-5874Cross-Domain Computing Solutions, Product Area Integrating Devices–Engineering Vehicle Systems (XC-AN/EPI1), Robert Bosch GmbH, Stuttgart, GermanyCross-Domain Computing Solutions, Product Area Integrating Devices–Powernet Strategy (XC-AN/PAI), Robert Bosch GmbH, Stuttgart, GermanyCross-Domain Computing Solutions, Product Area Integrating Devices–Engineering Vehicle Systems (XC-AN/EPI1), Robert Bosch GmbH, Stuttgart, GermanySystems Engineering, Bosch Center of Competence Vehicle Safety (M/ENG-CVS), Robert Bosch GmbH, Ludwigsburg, GermanyInstitute of Machine Components, University of Stuttgart, Stuttgart, GermanyThe automotive industry is currently driven by the megatrends electrification, automated driving and connectivity. To cope with these trends, new functionalities and electrical and/or electronic (E/E) systems need to be developed and deployed. Independent of the implementation of E/E systems, their power input shall be ensured by the power supply system as a shared resource – leading to increased functional safety requirements for power supply systems. If the loss of an item’s functionality can lead to a hazardous event, a safety goal (SG) specifying a safety-related availability (SaRA) requirement is derived. Thereby, switching to passive mode typically cannot be considered a safe state. To address an SG specifying a SaRA requirement, fault avoidance, fault forecasting and/or fault tolerance measures can be applied. In the case of fault tolerance measures implemented by redundancy, which leads to fail-active behavior, the performance of the backup system during nominal operation and after the first fault can be further refined. In this study, SaRA in the context of ISO 26262 is evaluated in detail and mapped to an example of the power supply domain.https://ieeexplore.ieee.org/document/9765464/Automotive electronicsautomotive engineeringfunctional safetyISO 26262power suppliesreliability |
| spellingShingle | Philipp Kilian Oliver Koller Patrick Van Bergen Carsten Gebauer Martin Dazer Safety-Related Availability in the Power Supply Domain IEEE Access Automotive electronics automotive engineering functional safety ISO 26262 power supplies reliability |
| title | Safety-Related Availability in the Power Supply Domain |
| title_full | Safety-Related Availability in the Power Supply Domain |
| title_fullStr | Safety-Related Availability in the Power Supply Domain |
| title_full_unstemmed | Safety-Related Availability in the Power Supply Domain |
| title_short | Safety-Related Availability in the Power Supply Domain |
| title_sort | safety related availability in the power supply domain |
| topic | Automotive electronics automotive engineering functional safety ISO 26262 power supplies reliability |
| url | https://ieeexplore.ieee.org/document/9765464/ |
| work_keys_str_mv | AT philippkilian safetyrelatedavailabilityinthepowersupplydomain AT oliverkoller safetyrelatedavailabilityinthepowersupplydomain AT patrickvanbergen safetyrelatedavailabilityinthepowersupplydomain AT carstengebauer safetyrelatedavailabilityinthepowersupplydomain AT martindazer safetyrelatedavailabilityinthepowersupplydomain |