Title:
DIAGNOSTIC DEVICE FOR WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/189683
Kind Code:
A1
Abstract:
A diagnostic device for a work machine comprises: a display device that displays an operation procedure of the work machine; a controller that acquires a state quantity of the work machine while the work machine is operating in accordance with the operation procedure from a sensor for detecting the state quantity, and diagnoses a function performance of the work machine on the basis of the state quantity of the work machine; and an output device that outputs the diagnosis result. On the basis of a plurality of state quantities detected by the sensor, the controller measures a function performance value indicating a prescribed function performance of the work machine and a plurality of factor parameters affecting the function performance value, and on the basis of the measured values of the plurality of factor parameters and reference values established in advance for each of the plurality of factor parameters, the controller calculates a degree of impact on function performance value for each of the plurality of factor parameters, and causes the function performance values and the degrees of impact to be output by the output device.
Inventors:
MATSUYAMA TAKUMA (JP)
Application Number:
PCT/JP2023/010459
Publication Date:
October 05, 2023
Filing Date:
March 16, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/26; G01D21/00; G01M99/00
Foreign References:
| JP2004232343A | 2004-08-19 | |||
| JP2020166745A | 2020-10-08 | |||
| JP2016125947A | 2016-07-11 | |||
| JPH0674876A | 1994-03-18 | |||
| JP2018005738A | 2018-01-11 | |||
| JP2005227141A | 2005-08-25 | |||
| JP2004232343A | 2004-08-19 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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