scholarly journals An Ontology-Based Hazard Analysis and Risk Assessment for automotive functional safety

2015 ◽  
Vol 20 (3) ◽  
pp. 9-17 ◽  
Author(s):  
Kyung-Hyun Roh ◽  
Keum-Suk Lee
2020 ◽  
Vol 10 (21) ◽  
pp. 7400
Author(s):  
Lei Chen ◽  
Jian Jiao ◽  
Tingdi Zhao

ISO26262: 2018 is an international functional safety standard for electrical and/or electronic (E/E) systems within road vehicles. It provides appropriate safety requirements for road vehicles to avoid unreasonable residual risk according to automotive safety integrity levels (ASILs) derived from hazard analysis and risk assessment (HARA) required in the ISO26262 concept phase. Systems theoretic process analysis (STPA) seems to be designed specifically to deal with hazard analysis of modern complex systems, but it does not include risk evaluation required by most safety related international standards. So we integrated STPA into Failure Mode and Effect Analysis (FMEA) template to form a new method called system theoretic process analysis based on an FMEA template, STPAFT for shot, which could not only meet all the requirements of the concept phase in ISO26262, but also make full use of the advantages of the two methods. Through the focus of FMEA on low-level components, STPAFT can obtain more detailed causal factors (CFs), which is very helpful for derivation of safety goals (SGs) and the functional safety requirements (FSRs) in the concept phase of ISO26262. The application of STPAFT is described by the case study of fuel level estimation and display system (FLEDS) to show how the concept phase of ISO26262 could be supported by STPAFT.


2010 ◽  
Vol 14-15 (1) ◽  
pp. 165-176
Author(s):  
Marco Schlummer ◽  
Dirk Althaus ◽  
Andreas Braasch ◽  
Arno Meyna

ISO 26262 - The Relevance and Importance of Qualitative and Quantitative Methods for Safety and Reliability Issues Regarding the Automotive IndustrySafety and reliability are key issues of today's and future automotive developments, where the involved companies have to deal with increasing functionality and complexity of software-based car functions. New functionalities cannot only be found in the area of driver assistance - most of the new car functions are and will be safety related as for example in vehicle dynamics control or active and passive safety systems. The development and integration of those functions will strengthen the need of safe processes during the system development. The new upcoming automotive standard on functional safety (ISO 26262), which is derived from the generic functional safety standard IEC 61508 to comply with the specific needs to the application sector of E/E-systems in road vehicles, will provide guidance to avoid the increasing risks from systematic faults and random hardware faults by providing feasible processes and requirements. It is evident that aspects and methods of the safety and reliability engineering are implemented and suited methods are performed in the development process at an early stage. This is one of the requirements of the new ISO 26262, which introduces a so called automotive safety lifecycle to handle all those activities that are necessary to guarantee the functional safety of automotive E/E-systems. In the following, a brief overview of the upcoming automotive standard, its new safety life cycle and the connected activities in order to ensure functional safety for safety related systems will be given. The main aim of this paper is to show the relevance and importance of one of the major tasks within the ISO 26262: the process of the hazard analysis and risk assessment as it is currently performed in the automotive industry. With the help of an example from the automotive sector, the basic steps of this method to determine the automotive safety integrity level (ASIL) are explained. Depending on the ASIL, safety requirements need to be derived as a result of the new standard regarding safety integrity attributes. Furthermore, the connection of the automotive functional safety process with methods for qualification and quantification of safety and reliability issues will be explained in this paper. The Fault Tree Analysis will be used to exemplify one of these methods which are applied subsequent to the hazard analysis and risk assessment and which make a contribution to the validation and verification of the safety process.


2020 ◽  
Vol 5 (1) ◽  
pp. 29
Author(s):  
Nidya Wisudawati ◽  
Rurry Patradhiani

Risiko kecelakaan kerja merupahal hal yang tak dapat dihindari dari kegiatan proyek pembangunan. PT Gran Anugerah Wijaya merupakan pengusaha pengembang perumahan yang sedang mengerjakan proyek pembangunanan 58 unit rumah tipe 36 yang berlokasi di daerah Palembang. Dari hasil pengamatan lapangan, alur proses pembangunan rumah yang dikerjakan meliputi pemasangan pondasi, pemasangan dinding, pemasangan kusen kayu, pemasangan rangka atap dan finishing. Hazard Identification, Risk Assessment dan Risk Control telah dilakukan dlaam penelitian ini. Hasil yang didapat bahwa terdapat 27 potensi risiko dengan risk level diantara rendah hinggi tinggi. Pengendalian risiko yang bisa dilakaukan untuk mengurangi bahaya kerja terhadap karyawan bangunan diantaranya substitusi, administrasi dan Alat Pelindung Diri (APD).


2017 ◽  
Vol 99 ◽  
pp. 166-177 ◽  
Author(s):  
Siddartha Khastgir ◽  
Stewart Birrell ◽  
Gunwant Dhadyalla ◽  
Håkan Sivencrona ◽  
Paul Jennings

1998 ◽  
Vol 61 (8) ◽  
pp. 1075-1086 ◽  
Author(s):  

One of the components of the General Agreement on Tariffs and Trade Sanitary and Phytosanitary agreement that will have far-reaching effects on International trade in foods and food products is the requirement for countries to provide risk assessments as part of the process of resolving disputes that involve food safety issues. Risk assessment is a means of evaluating the likelihood and impact of hazards. It provides a framework for systematically considering available data, providing rationales for assumptions, and identifying areas where additional information is needed. While the application of quantitative risk assessment techniques to microbial food safety has been limited, recent studies have increasingly demonstrated its feasibility. Quantitative risk assessment is particularly well suited for use with the hazard analysis critical control point and appears to have potential as an approach for comparing the equivalence of international food safety programs and inspection systems.


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