Maintenance Support System for Construction Machine
First Claim
1. A maintenance support system for a construction machine that comprises a computer system that can be connected to a construction machine via a communication network, wherein the computer system comprises:
- operation simulation means for simulating driving conditions and/or working conditions of the construction machine on the basis of production operating conditions that are input;
cumulative load calculation means for calculating a cumulative load relating to a predetermined component that is preset, on the basis of simulation results produced by the operation simulation means; and
lifespan calculation means for calculating a lifespan of the predetermined component on the basis of the cumulative load thus calculated.
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Accused Products
Abstract
The present invention provides a maintenance support system for a construction machine that allows a components maintenance schedule to be accurately established.
The system 1 calculates the cumulative load of every component corresponding with the driving and working conditions of the construction machine 3 by means of the load calculation means 13 after simulating the driving and working conditions on the basis of production operating conditions by means of the operation simulation means 12, and forecasts the lifespan of the respective components by means of the lifespan calculation means 14 on the basis of the cumulative load. Hence, a more accurate maintenance schedule can be established in comparison with a case where which component is to be maintained is determined on the basis of only the operating time as in the prior art. The possibility of an unexpected component anomaly occurring at an earlier stage than the predetermined lifespan can therefore be reduced.
51 Citations
9 Claims
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1. A maintenance support system for a construction machine that comprises a computer system that can be connected to a construction machine via a communication network, wherein the computer system comprises:
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operation simulation means for simulating driving conditions and/or working conditions of the construction machine on the basis of production operating conditions that are input; cumulative load calculation means for calculating a cumulative load relating to a predetermined component that is preset, on the basis of simulation results produced by the operation simulation means; and lifespan calculation means for calculating a lifespan of the predetermined component on the basis of the cumulative load thus calculated. - View Dependent Claims (4, 5, 6, 7)
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2. A maintenance support system for a construction machine that comprises a computer system that can be connected to a construction machine via a communication network, wherein the computer system comprises:
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cumulative load calculation means for calculating a cumulative load relating to a predetermined component that is preset, on the basis of operation information that is acquired from the construction machine via the communication network; and lifespan calculation means for calculating a lifespan of the predetermined component on the basis of the cumulative load thus calculated. - View Dependent Claims (3, 8)
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9. A maintenance support system for a construction machine that comprises a plurality of construction machines each of which can be connected to a communication network and a computer system that can be connected to the communication network, wherein the respective construction machines comprise:
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a plurality of sensors for detecting operating states of respective components; an operation information generation section for statistically processing information that is detected by the respective sensors and outputting the information same as operation information; and a communication section for transmitting the operation information output from the operation information generation section to the computer system via the communication network, wherein the computer system comprises; an operation information database that accumulates the operation information that is received from the communication section via the communication network; a component standard lifespan database in which standard lifespan of the respective components are accumulated beforehand; a simulation results database for accumulating simulation results; an input section for inputting production operating conditions of the respective construction machines; an operation simulation section for individually simulating driving conditions and/or working conditions of the respective construction machines by setting the production operating conditions input via the input section in the simulation model, and storing simulation results in the simulation results database; a cumulative load calculation section for calculating, in accordance with a predetermined calculation algorithm, a cumulative load relating to the respective components on the basis of both the operation information stored in the operating information database and the simulation results stored in the simulation results database; a lifespan calculation section for calculating lifespan of the respective components on the basis of the cumulative load thus calculated and the component standard life database; a cumulative load calculation section for comparing the cumulative load calculated on the basis of the simulation results and the cumulative load calculated on the basis of the operation information; and a load calculation algorithm modification section for modifying the calculation algorithm on the basis of the result of the comparison by the cumulative load calculation section.
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Specification