Reliability Prediction of Fault Tolerant Automotive Systems 2000-01-1049
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.
Irina Theis, Jürgen Guldner, Ralf Orend
BMW Technik GmbH, University of Erlangen-Nuremberg
SAE 2000 World Congress
Automotive Electronics Reliability-PT-82, Design and Technologies for Automotive Safety-Critical Systems-SP-1507, SAE 2000 Transactions Journal of Passenger Cars - Electronic and Electrical Systems-V109-7