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Achieving ASIL D for Microcontroller in Safety-Critical Drive-by-Wire System
Technical Paper
2009-01-0759
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The implementation of drive-by-wire (DbW) systems has become a prevailing issue in automotive industry. The great potential in improving vehicle performance makes this new technology outweigh traditional mechanical controls and linkages. However, it also brings new safety concerns because electronic components are more likely to fail in unpredictable manners. This requires a fault-tolerant approach for electronic systems, especially for the core of these systems – the microcontrollers.
According to ISO 26262, the future international standard for functional safety of E/E systems in road vehicles (classes M, N, O), self-monitoring capability has become a necessity for microcontroller in safety-critical systems, and the highest Automotive Safety Integrity Level (ASIL D) should be achieved. To deal with this problem, several strategies for microcontroller architecture have already been established, among which asymmetric-controller and dual-core controller are the most recommended ones. With respect to ISO 26262, this paper takes a deeper observation on these two strategies in real microcontroller design process, and developed a new architecture from them that would better achieve DbW system safety requirements. This paper also presents an ISO 26262-compliant safety verification flow for microcontroller, and gives valuable suggestions on software implementation to help ensure system functional safety.
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Authors
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Citation
Zhai, Z. and Corbiere, T., "Achieving ASIL D for Microcontroller in Safety-Critical Drive-by-Wire System," SAE Technical Paper 2009-01-0759, 2009, https://doi.org/10.4271/2009-01-0759.Also In
References
- Ladier, Gérard Introduction to Future ISO 26262, RTCA/EUROCAE SC205/WG71 plenary meeting Toulouse you can find it at: http://forum.pr.erau.edu/SCAS/dispatch.cgi/SCAS_materials/showFile/100508
- Management of Functional Safety Chapter 4 Overall Project Independent Safety Management
- Concept Phase Chapter 6 Hazard Analysis and Risk Assessment
- Papadopoulos, Y. McDermid, J.A. The Potential for A Generic Approach to Certification of Safety Critical Systems in the Transportation Sector Reliability Engineering and Systems Safety 63 1999 47 66
- Product Design and Development: Hardware Level Chapter 4 Initiation of Product Development at Hardware Level
- Haggag, Salem Rosa, Aristoteles Huang, Kevin Cetinkunt, Sabri Fault Tolerant Real-time Control System for Steer-by-Wire Electro-hydraulic Systems Mechatronics 17 2007 129 142
- Wilwert, Cédric Song, Yeqiong Simonot-Lion, Françoise Clément, Thomas Evaluating Quality of Service and Behavioral Reliability of Steer-by-Wire Systems you can find it at: www.iestcfa.org/bestpaper/etfa03/etfa03_simonot.pdf
- Neema, Sandeep Bapty, Ted Shetty, Shweta Nordstrom, Steven Autonomic Fault Mitigation in Embedded Systems Engineering Applications of Artificial Intelligence 17 2004 711 725
- Schneider, Rolf Kalhammer, Manfred Eberhard, Denis Basic Single-Microcontroller Monitoring Concept for Safety Critical Systems SAE # 2007-01-1488
- Sundaram, Padma D’Ambrosio, Joseph G. Controller Integrity in Automotive Failsafe System Architectures SAE # 2006-01-0840
- Product Design and Development: Hardware Level Chapter 7 HW Architectural Constraints
- Product Design and Development: Hardware Level Chapter 8 Assessment Criteria for Probability of Violation of Safety Goals
- Hsiao, Michael S. A Fast, Accurate, and Non-statistical Method for Fault Coverage Estimation IEEE/ASM International Conf. Computer Aided Design 1998 155 161
- Park, Tong-Jin Han, Chang-Soo Lee, Sang-Ho Development of the Electronic Control Unit for the Rack-actuating Steer-by-wire Using the Hardware-in-the- loop Simulation System Mechatronics 15 2005 899 918