Method and apparatus for machine state quantification in machinery management systems
First Claim
1. A method for determining a steady state operating condition of a machine, the method comprising:
- determining whether a current machine speed of the machine is within a defined range of operation;
determining whether a step change in output power of the machine has occurred;
determining a first duration of time elapsed since the machine speed was last outside of said defined range of operation; and
determining a second duration of time elapsed since a most recent detected step change in output power of the machine;
wherein the machine is deemed to be in a steady state condition whenever said current machine speed of the machine is within said defined range of operation, and said first and second durations of time exceed respective defined minimum values.
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Accused Products
Abstract
A method for determining a steady state operating condition of a machine includes determining whether a current machine speed of the machine is within a defined range of operation, determining whether a step change in output power of the machine has occurred, determining a first duration of time elapsed since the machine speed was last outside of the defined range of operation, and determining a second duration of time elapsed since a most recent detected step change in output power of the machine. The machine is deemed to be in a steady state condition whenever the current machine speed of the machine is within said defined range of operation, and the first and second durations of time exceed respective minimum values defined therefor.
45 Citations
28 Claims
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1. A method for determining a steady state operating condition of a machine, the method comprising:
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determining whether a current machine speed of the machine is within a defined range of operation; determining whether a step change in output power of the machine has occurred; determining a first duration of time elapsed since the machine speed was last outside of said defined range of operation; and determining a second duration of time elapsed since a most recent detected step change in output power of the machine; wherein the machine is deemed to be in a steady state condition whenever said current machine speed of the machine is within said defined range of operation, and said first and second durations of time exceed respective defined minimum values. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for generating an alarm indication for a machine control system, the method comprising:
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detecting an alarm condition within the system; determining whether a machine controlled by the control system is operating in a steady state condition; and initiating an alarm signal responsive to the detected alarm condition where the machine is operating in a steady state condition and preventing an alarm signal where the machine is not operating in a steady state condition, wherein said determination of said steady state condition further comprises; determining whether a current machine speed of the machine is within a defined range of operation; determining whether a step change in output power of machine has occurred; determining a first duration of time elapsed since the machine speed was last outside of said defined range of operation; and determining a second duration of time elapsed since a most recent detected step change in output power of the machine; wherein the machine is deemed to be in a steady state condition whenever said current machine speed of the machine is within said defined range of operation, and said first and second durations of time exceed respective defined minimum values. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for determining a steady state operating condition of a machine, comprising:
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a controller in communication with the machine, the controller configured for receiving a current machine speed and a current machine power output as inputs thereto, said algorithm further configured for determining whether said current machine speed is within a defined range of operation, determining whether a step change in output power of the machine has occurred, determining a first duration of time elapsed since said machine speed was last outside of said defined range of operation, and determining a second duration of time elapsed since a most recent detected step change in output power of the machine; wherein the machine is deemed to be in a steady state condition whenever said current machine speed of the machine is within said defined range of operation, and said first and second durations of time exceed respective defined minimum values. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A storage medium, comprising:
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a machine readable computer program code for determining a steady state operating condition of a machine; and instructions for causing a computer to implement a method, the method further comprising; determining whether a current machine speed of the machine is within a defined range of operation; determining whether a step change in output power of the machine has occurred; determining a first duration of time elapsed since the machine speed was last outside of said defined range of operation; and determining a second duration of time elapsed since a most recent detected step change in output power of the machine; wherein the machine is deemed to be in a steady state condition whenever said current machine speed of the machine is within said defined range of operation, and said first and second durations of time exceed respective defined minimum values. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification