DE10333181A1 - Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten - Google Patents

Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten Download PDF

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Publication number
DE10333181A1
DE10333181A1 DE10333181A DE10333181A DE10333181A1 DE 10333181 A1 DE10333181 A1 DE 10333181A1 DE 10333181 A DE10333181 A DE 10333181A DE 10333181 A DE10333181 A DE 10333181A DE 10333181 A1 DE10333181 A1 DE 10333181A1
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Germany
Prior art keywords
status
state
bayes
network
motor vehicles
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DE10333181A
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English (en)
Inventor
Bernard Baeker
Thomas Forchert
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Daimler AG
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DaimlerChrysler AG
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Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE10333181A priority Critical patent/DE10333181A1/de
Publication of DE10333181A1 publication Critical patent/DE10333181A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N7/00—Computing arrangements based on specific mathematical models
    • G06N7/01—Probabilistic graphical models, e.g. probabilistic networks

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Evolutionary Computation (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Probability & Statistics with Applications (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

Diagnoseverfahren mit einem Bayesnetz-basierten Expertensystem, bei dem der Zustand des technischen Systems mit Sensoren erfasst und auf Zustandsparameter abgebildet wird. Für die mit dem Expertensystem zu treffende Diagnoseentscheidung werden Wahrscheinlichkeitsschwellwerte vorgehalten, die aus Erfahrung oder durch Modellberechnungen gewonnen wurden. Diese Wahrscheinlichkeitsschwellwerte können für verschiedene Zustände des technischen Systems unterschiedliche Werte haben. Ändert sich der Zustand des technischen Systems mit der Zeit, so ändern sich auch die Zustandsparameter mit der Zeit. Die zeitliche Dynamisierung des Bayes-Netz-basierten Expertensystems gelingt dann, indem anhand der Zustandsparameter je nach zeitlichem Systemzustand unterschiedliche Wahrscheinlichkeitsschwellwerte für die automatisierte Diagnoseentscheidung ausgewählt werden.
DE10333181A 2003-07-22 2003-07-22 Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten Withdrawn DE10333181A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10333181A DE10333181A1 (de) 2003-07-22 2003-07-22 Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10333181A DE10333181A1 (de) 2003-07-22 2003-07-22 Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten

Publications (1)

Publication Number Publication Date
DE10333181A1 true DE10333181A1 (de) 2005-05-12

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ID=34428050

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DE10333181A Withdrawn DE10333181A1 (de) 2003-07-22 2003-07-22 Bayesnetz basiertes Diagnosesystem mit zeitlichem Verhalten

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004516B3 (de) * 2006-02-01 2007-03-08 Mtu Friedrichshafen Gmbh Bayes-Netz zur Steuerung und Regelung einer Brennkraftmaschine
DE102006059037A1 (de) * 2006-12-14 2008-06-19 Volkswagen Ag Verfahren und Vorrichtung zum Diagnostizieren von Funktionen und Fahrzeugsystemen
DE102008020380A1 (de) * 2008-04-23 2009-12-10 Siemens Aktiengesellschaft Verfahren zum rechnergestützten Lernen einer Steuerung und/oder Regelung eines technischen Systems
US7962441B2 (en) 2006-09-22 2011-06-14 Denso Corporation Air conditioner for vehicle and controlling method thereof
US7966280B2 (en) 2007-02-13 2011-06-21 Denso Corporation Automotive air conditioner and method and apparatus for controlling automotive air conditioner
US8180539B2 (en) 2007-12-06 2012-05-15 Denso Corporation Location range setting apparatus, control method and controller for apparatus mounted in mobile object, and automotive air conditioner and control method for the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004516B3 (de) * 2006-02-01 2007-03-08 Mtu Friedrichshafen Gmbh Bayes-Netz zur Steuerung und Regelung einer Brennkraftmaschine
US7962441B2 (en) 2006-09-22 2011-06-14 Denso Corporation Air conditioner for vehicle and controlling method thereof
DE102006059037A1 (de) * 2006-12-14 2008-06-19 Volkswagen Ag Verfahren und Vorrichtung zum Diagnostizieren von Funktionen und Fahrzeugsystemen
US7966280B2 (en) 2007-02-13 2011-06-21 Denso Corporation Automotive air conditioner and method and apparatus for controlling automotive air conditioner
US8180539B2 (en) 2007-12-06 2012-05-15 Denso Corporation Location range setting apparatus, control method and controller for apparatus mounted in mobile object, and automotive air conditioner and control method for the same
DE102008020380A1 (de) * 2008-04-23 2009-12-10 Siemens Aktiengesellschaft Verfahren zum rechnergestützten Lernen einer Steuerung und/oder Regelung eines technischen Systems
DE102008020380B4 (de) * 2008-04-23 2010-04-08 Siemens Aktiengesellschaft Verfahren zum rechnergestützten Lernen einer Steuerung und/oder Regelung eines technischen Systems
US8250014B2 (en) 2008-04-23 2012-08-21 Siemens Aktiengesellshaft Method for the computer-aided learning of a control or adjustment of a technical system using a quality function and training data

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