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ISO 26262 Hazard and Risk Assessment for Hybrid Powertrain
Technical Paper
2019-26-0107
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
ISO 26262 is an Automotive functional safety standard for Electrical and Electronic system. This paper details application of this standard for hybrid powertrain. The concept of functional safety has been analyzed. First item definition for hybrid powertrain is detailed out. Item definition includes system description, its function, boundary, interfaces to external systems. Hybrid powertrain is used to provide electric traction to the vehicle and to charge the included battery. Battery provides power to electric motor. Major components of hybrid powertrain are Generator, Traction motor, High voltage battery, Inverters and other auxiliary units. The overall powertrain scheme is being discussed from functional safety perspective. Then methods for identifying hazardous situations that could result from malfunctioning behavior at the vehicle level is presented. Each function is analyzed from hazard perspective and all hazards are identified. Identified Hazards are analyzed for different vehicle operating conditions and ASIL rating is identified for each hazard.
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Authors
Citation
Kumar, R., "ISO 26262 Hazard and Risk Assessment for Hybrid Powertrain," SAE Technical Paper 2019-26-0107, 2019, https://doi.org/10.4271/2019-26-0107.Data Sets - Support Documents
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Also In
References
- ISO26262 2011
- ISO26262 - 3 2011
- Christiaens , S. , Ogrzewalla , J. , and Pischinger , S. Functional Safety for Hybrid and Electric Vehicles SAE Technical Paper 2012-01-0032 2012 10.4271/2012-01-0032
- Kemmann , S. and Trapp , M. SAHARA -A Systematic Approach for Hazard Analysis and Risk Assessment SAE Technical Paper 2011-01-1003 2011 10.4271/2011-01-1003
- SAE J2980 2018
- Kawakoshi , M. , Kaneko , T. , and Nameki , T. Estimation of Controllability Based on Driver Behavior - A Case of Insufficient Brake-Assist Force SAE Technical Paper 2014-01-0236 2014 10.4271/2014-01-0236
- Down , M. DFMEA and FTA Applied to Complex Hybrid and Fuel Cell Systems SAE Technical Paper 2011-01-0512 2011 10.4271/2011-01-0512