@InProceedings{ManelliNetoSouz:2010:StFaSy,
               author = "Manelli Neto, Humberto and Souza, Marcelo Lopes de Oliveira e",
                title = "Study on a Fault-Tolerant System Applied to an Aerospace Control 
                         System",
                 year = "2010",
         organization = "SAE.",
             abstract = "On several engineering applications high Reliability is one of the 
                         most wanted features. The aspects of Reliability play a key role 
                         in design projects of aircraft, spacecraft, automotive, medical, 
                         bank systems, and so, avoiding loss of life, property, or costly 
                         recalls. The highly reliable systems are designed to work 
                         continuously, even upon external threats and internal Failures. 
                         Very convenient is the fact that the term 'Failure' may have its 
                         meaning tailored to the context of interesting, as its general 
                         definition refers to it as {"}any deviation from the specified 
                         behavior of a system{"}. The above-mentioned 'deviation' may refer 
                         to: performance degradation, operational misbehavior, deviation of 
                         environmental qualification levels, Safety hazards, etc. 
                         Nevertheless, Reliability is not the only requirement for a modern 
                         system. Other features as Availability, Integrity, Security and 
                         Safety are always part of the same technical specification, in a 
                         same level of importance. This paper intends to present the most 
                         important points to be considered for building a Fault-Tolerant 
                         System applied to the attitude control system of a spacecraft 
                         project. To accomplish its intent, the paper starts by a 
                         theoretical review of definitions and concepts. After that, the 
                         requirements of a spacecraft project will be selected and/or 
                         written. Then, two possible solutions for the requirements will be 
                         proposed, and then compared. As the conclusion of this work, the 
                         key requirements for specifying a Fault-Tolerant Systems will be 
                         highlighted. Besides, a comparison between the two proposed 
                         architectures will be performed. Finally, possible applications to 
                         the automotive system will be commented.",
                  doi = "10.4271/2010-36-0330",
                  url = "http://dx.doi.org/10.4271/2010-36-0330",
                  url = "http://papers.sae.org/2010-36-0330",
               volume = "SAE Technical Paper 2010-36-0330, 2010",
        urlaccessdate = "12 maio 2024"
}