ISO26262 application to electric steering development with a focus on Hazard Analysis

The column-drive electric power steering (EPS) system is analyzed using the recommended practices in ISO26262 for the failure mode of "Unintended Steering Assist". Risk assessment rates this hazard as ASIL-D, i.e. the highest level of risk. A safety goal is applied to the EPS system to avo...

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Bibliographic Details
Main Authors: Hyungju Kwon, Itabashi-Campbell, R., McLaughlin, K.
Format: Conference Proceeding
Language:English
Subjects:
automotive
Controllability
E/E
electric power steering (EPS)
functional safety
HARA
hazard testing
Hazards
HAZOP
ISO 26262
ISO standards
Testing
Torque
Vehicles
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Description
Summary:The column-drive electric power steering (EPS) system is analyzed using the recommended practices in ISO26262 for the failure mode of "Unintended Steering Assist". Risk assessment rates this hazard as ASIL-D, i.e. the highest level of risk. A safety goal is applied to the EPS system to avoid and mitigate the risk. Hazard testing results are used to define the "fault tolerant interval", i.e. the time required to mitigate the fault and revert to a safe state after inception of faults that lead to the hazardous state.
DOI:10.1109/SysCon.2013.6549952