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

Author

Hyungju Kwon ; Itabashi-Campbell, R. ; McLaughlin, Keiran

Author_Institution

Electr. Power Steering R &D, Mobis North America LLC, Farmington, MI, USA

fYear

2013

fDate

15-18 April 2013

Firstpage

655

Lastpage

661

Abstract

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.

Keywords

ISO standards; automotive electronics; conformance testing; electrical safety; failure analysis; fault tolerance; risk analysis; steering systems; EPS system; ISO 26262; column drive electric power steering system; electric steering development; failure mode; fault tolerance interval; hazard analysis; hazard testing; risk assessment; risk mitigation; safety goal; unintended steering assist; Controllability; Hazards; ISO standards; Testing; Torque; Vehicles; E/E; HARA; HAZOP; ISO 26262; automotive; electric power steering (EPS); functional safety; hazard testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems Conference (SysCon), 2013 IEEE International

Conference_Location

Orlando, FL

Print_ISBN

978-1-4673-3107-4

Type

conf

DOI

10.1109/SysCon.2013.6549952

Filename

6549952