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LEARNING DIAGNOSTIC SYSTEM, STATE DIAGNOSTIC DEVICE, AND STATE LEARNING DEVICE FOR WORKING MACHINE

  • US 20120035802A1
  • Filed: 02/19/2010
  • Published: 02/09/2012
  • Est. Priority Date: 03/31/2009
  • Status: Active Grant
First Claim
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1. A learning diagnostic system for a working machine that includes a machine body mounted with a working implement, the learning diagnostic system detecting a state quantity of the working machine with a sensor and inputting the data as running data to thereby detect a fault in an operating state of the working machine using the running data, the system comprising:

  • a state learning device for sorting the inputted running data into running data when the operating state of the working machine is a steady operating state and running data when the operating state of the working machine is a transient operating state, learning the operating state of the working machine based on the sorted running data, and generating steady state information and transient state information, each including a permissible error; and

    a state diagnostic device for determining, using the inputted running data and the steady state information including the permissible error and generated in the state learning device, whether the operating state of the working machine related to the inputted running data is the steady operating state or the transient operating state, making a fault determination in the determined steady operating state, and using the transient state information including the permissible error and generated in the state learning device to make a fault determination in the determined transient operating state.

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