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ISO 26262, titled "Road vehicles – Functional safety", is an international standard for functional safety of electrical and/or electronic systems that are installed in serial production road vehicles (excluding mopeds), defined by the International Organization for Standardization (ISO) in 2011, and revised in 2018.
Automotive Safety Integrity Level (ASIL) is a risk classification scheme defined by the ISO 26262 - Functional Safety for Road Vehicles standard. This is an adaptation of the Safety Integrity Level (SIL) used in IEC 61508 for the automotive industry. This classification helps defining the safety requirements necessary to be in line with the ISO ...
An FMEDA can predict failure rates per defined failure modes. For Functional Safety applications the IEC 61508 failure modes (safe, dangerous, annunciation, and no effect) are used. These failure rate numbers can be converted into the alternative failure modes from the automotive functional safety standard, ISO 26262.
ISO 26262 Road Vehicles - Functional Safety; ISO 26322 Tractors for agriculture and forestry - Safety ISO 26322-1:2008 Part 1: Standard tractors; ISO 26322-2:2010 Part 2: Narrow-track and small tractors; ISO/IEC 26300:2006 Information technology – Open Document Format for Office Applications (OpenDocument) v1.0
These safety features are specified by the ISO 26262 standard level D. Vehicle cybersecurity is specified by the ISO/SAE 21434 standard and UNCE regulations 155, 156, and 157 , and implemented using dedicated cryptographic modules that encrypt all communication between the ECUs and the drive system components.
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In the functional safety standards based on the IEC 61508 standard, four SILs are defined, with SIL4 being the most dependable and SIL1 the least. The applicable SIL is determined based on a number of quantitative factors in combination with qualitative factors, such as risk assessments and safety lifecycle management .
The primary functional safety standards in current use are listed below: IEC EN 61508 Parts 1 to 7 is a core functional safety standard, applied widely to all types of safety critical E/E/PS and to systems with a safety function incorporating E/E/PS. UK Defence Standard 00-56 Issue 2; US RTCA DO-178C, North American Avionics Software