Sökning: "Fault diagnosis"

Visar resultat 1 - 5 av 44 avhandlingar innehållade orden Fault diagnosis.

1. 1. Residual Generation Methods for Fault Diagnosis with Automotive Applications

   Detta är en avhandling från Linkö : Linköping University Electronic Press

   Författare :Carl Svärd; Linköpings universitet.; Linköpings universitet.; [2009]
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diagnosis; fault diagnosis; FDI; fault detection; residual; residual generation; residual generator; DAE; TECHNOLOGY Information technology Systems engineering; TEKNIKVETENSKAP Informationsteknik Systemteknik;

   Sammanfattning : The problem of fault diagnosis consists of detecting and isolating faults present in a system. As technical systems become more and more complex and the demands for safety, reliability and environmental friendliness are rising, fault diagnosis is becoming increasingly important. LÄS MER

3. 2. Fault Isolation in Distributed Embedded Systems

   Detta är en avhandling från Institutionen för systemteknik

   Författare :Jonas Biteus; Linköpings universitet.; Linköpings universitet.; [2007]
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fault diagnosis; Fault isolation; Distributed diagnosis; Embedded systems; Fault tree analysis.; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : To improve safety, reliability, and efficiency of automotive vehicles and other technical applications, embedded systems commonly use fault diagnosis consisting of fault detection and isolation. Since many systems are constructed as distributed embedded systems including multiple control units, it is necessary to perform global fault isolation using for example a central unit. LÄS MER

4. 3. A Bayesian approach to fault isolation with application to diesel engine diagnosis

   Detta är en avhandling från Stockholm : KTH

   Författare :Anna Pernestål; KTH.; [2007]
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bayesian probability; fault diagnosis; fault isolation; Bayesian inference; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik;

   Sammanfattning : Users of heavy trucks, as well as legislation, put increasing demands on heavy trucks. The vehicles should be more comfortable, reliable and safe. Furthermore, they should consume less fuel and be more environmentally friendly. For example, this means that faults that cause the emissions to increase must be detected early. LÄS MER

5. 4. Design and Analysis of Diagnosis Systems Using Structural Methods

   Detta är en avhandling från Institutionen för systemteknik

   Författare :Mattias Krysander; Linköpings universitet.; Linköpings universitet.; [2006]
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diagnosis; graph theory; structual methods; algorithms; fault isolation; complete; sound; TECHNOLOGY Information technology Systems engineering; TEKNIKVETENSKAP Informationsteknik Systemteknik;

   Sammanfattning : In complex and automated technological processes the effects of a fault can quickly propagate and lead to degradation of process performance or even worse to a catastrophic failure. This means that faults have to be found as quickly as possible and decisions have to be made to stop the propagation of their effects and to minimize process performance degradation. LÄS MER

7. 5. Residual generation for fault diagnosis

   Detta är en avhandling från Linköping : Linköpings universitet

   Författare :Erik Frisk; Linköpings universitet.; Linköpings universitet.; [2001]
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The objective when supervising technical processes is to alarm an operator when a fault is detected and also identify one, or possibly a set of components, that may have been the cause of the alarm. Diagnosis is an expansive subject, partly due to the fact that nowadays, more applications have more embedded computing power and more available sensors than before. LÄS MER