The topic of this paper is systems that need be designed such that no single fault can cause failure at the overall level. A methodology is presented for analysis and design of fault-tolerant architectures, where diagnosis and autonomous reconfiguration can replace high cost triple redundancy solutions and still meet strict requirements to functional safety. The paper applies graph-based analysis of functional system structure to find a novel fault-tolerant architecture for an electrical steering where a dedicated AC-motor design and cheap voltage measurements ensure ability to detect all relevant faults. The paper shows how active control reconfiguration can accommodate all critical faults and the fault-tolerant abilities are demonstrated on a warehouse truck hardware. (All rights reserved Elsevier).
Electrical steering of vehicles - fault-tolerant analysis and design
Microelectronics Reliability ; 46 , 9-11 ; 1421-1432
2006
12 Seiten, 17 Quellen
Aufsatz (Zeitschrift)
Englisch
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