Study on a Fault-Tolerant System Applied to an Aerospace Control System National Institute for Space Research - INPE

Format:

Conference/Event

Author/Creator:

Neto, Neto, author.

Contributor:

de Oliveira e Souza, Marcelo Lopes

Conference Name:

SAE Brasil 2010 Congress and Exhibit (2010-10-05 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

On several engineering applications high Reliability is one ofthe most wanted features. The aspects of Reliability play a keyrole in design projects of aircraft, spacecraft, automotive,medical, bank systems, and so, avoiding loss of life, property, orcostly recalls. The highly reliable systems are designed to workcontinuously, even upon external threats and internal Failures.Very convenient is the fact that the term 'Failure' mayhave its meaning tailored to the context of interesting, as itsgeneral definition refers to it as "any deviation from thespecified behavior of a system". The above-mentioned'deviation' may refer to: performance degradation,operational misbehavior, deviation of environmental qualificationlevels, Safety hazards, et cetera Nevertheless, Reliability is not theonly requirement for a modern system. Other features asAvailability, Integrity, Security and Safety are always part of thesame technical specification, in a same level of importance.This paper intends to present the most important points to beconsidered for building a Fault-Tolerant System applied to theattitude control system of a spacecraft project. To accomplish itsintent, the paper starts by a theoretical review of definitions andconcepts. After that, the requirements of a spacecraft project willbe selected and/or written. Then, two possible solutions for therequirements will be proposed, and then compared. As the conclusionof this work, the key requirements for specifying a Fault-TolerantSystems will be highlighted. Besides, a comparison between the twoproposed architectures will be performed. Finally, possibleapplications to the automotive system will be commented

Notes:

Vendor supplied data

Publisher Number:

2010-36-0330

Access Restriction:

Restricted for use by site license