Search for dissertations about: "diagnosis engine"

Showing result 1 - 5 of 16 swedish dissertations containing the words diagnosis engine.

  2. 1. Troubleshooting Trucks : Automated Planning and Diagnosis

    Author : Håkan Warnquist; Patrick Doherty; Jonas Kvarnström; Louise Travé-Massuyès; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; automated planning; diagnosis; troubleshooting; automotive systems; Bayesian networks; Markov decision-processes;

    Abstract : This thesis considers computer-assisted troubleshooting of heavy vehicles such as trucks and buses. In this setting, the person that is troubleshooting a vehicle problem is assisted by a computer that is capable of listing possible faults that can explain the problem and gives recommendations of which actions to take in order to solve the problem such that the expected cost of restoring the vehicle is low. READ MORE

  4. 2. Model Based Fault Diagnosis : Methods, Theory, and Automotive Engine Applications

    Author : Mattias Nyberg; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Model based fault diagnosis is to perform fault diagnosis by means of models. An important question is how to use the models to construct a diagnosis system. To develop a general theory for this, useful in real applications, is the topic of the first part of this thesis. READ MORE

  5. 3. Residual Generation Methods for Fault Diagnosis with Automotive Applications

    Author : Carl Svärd; Mattias Nyberg; Mogens Blanke; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Diagnosis; fault diagnosis; FDI; fault detection; residual; residual generation; residual generator; DAE; Systems engineering; Systemteknik;

    Abstract : 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. READ MORE

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

    Author : Mattias Krysander; Mattias Nyberg; Jan Lunze; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diagnosis; graph theory; structual methods; algorithms; fault isolation; complete; sound; Systems engineering; Systemteknik;

    Abstract : 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. READ MORE

  7. 5. A Bayesian approach to fault isolation with application to diesel engine diagnosis

    Author : Anna Pernestål; Bo Wahlberg; Stefan Arnborg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bayesian probability; fault diagnosis; fault isolation; Bayesian inference; Automatic control; Reglerteknik;

    Abstract : 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. READ MORE