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Reliability Prediction of Fault Tolerant Automotive Systems
Technical Paper
2000-01-1049
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
This paper discusses a methodology for calculating the probability of a redundant system to fail in a specified time interval after a first fault has occurred. That probability is first derived in general and then specified for a system consisting of independent components having exponential failure rate densities. Four different redundant system configurations of a safety relevant automotive control system are discussed and compared with respect to their reliability characteristics. The four configurations differ in system topologies as well as the intelligence of the system components with respect to self-monitoring.
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Authors
Topic
Citation
Theis, I., Guldner, J., and Orend, R., "Reliability Prediction of Fault Tolerant Automotive Systems," SAE Technical Paper 2000-01-1049, 2000, https://doi.org/10.4271/2000-01-1049.Also In
Design and Technologies for Automotive Safety-Critical Systems
Number: SP-1507; Published: 2000-03-06
Number: SP-1507; Published: 2000-03-06
SAE 2000 Transactions Journal of Passenger Cars - Electronic and Electrical Systems
Number: V109-7; Published: 2001-09-15
Number: V109-7; Published: 2001-09-15
References
- Dilger E. et al. “Towards an architecture for safety related fault tolerant systems in vehicles” Proc. ESREL Lisbon, Portugal 1997
- Hedenetz B. Belschner R. “Brake-by-wire without mechanical backup by using a TTP-communication network” SAE paper no. 981109 1998
- Theis I. Guldner J. “Reliability Improvement of Fault Tolerant Systems in Automotive Engineering” Proc. ESREL Munich, Germany 1999
- Guldner J. Theis I. “Comparison of redundancy structures for safety relevant automotive control systems” Proc. ECC Karlsruhe, Germany 1999