Released on July 29th, 2021.
The objective of any functional safety standard is to drive down the risk of a product malfunctioning due to a failure. For automotive electronics, this is covered by the ISO 26262 standard. The ISO 26262 standard focuses on two types of hardware faults – systematic and random.
Systematic faults are any type of fault that prevent the product from “operating correctly” when it’s built. Things that could lead to incorrect behavior would be problem with requirements and how they are implemented, design bugs that verification didn’t catch or manufacturing defects that slipped into production. The goal is to eliminate these from the system. They are preventable if the processes, verification and testing is adequate.
Random faults cannot be prevented so the goal there is to sufficiently tolerate them. With random faults you are really just trying to make sure that the product will fail safely when inevitably one of these random hardware faults occurs.
In this session we will outline approaches on how to tackle systematic as well as random faults.