Method of and apparatus for evaluating the performance of a control system
First Claim
1. A method of evaluating the performance of a control system, the method comprising:
- acquiring an error signal associated with the control system;
calculating a measure of symmetry of a half-cycle of the error signal;
comparing the measure of symmetry with a predetermined value;
determining a cause of an oscillation in the control system based on the comparison; and
completing at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device.
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Accused Products
Abstract
A method of and apparatus for evaluating the performance of a control system are disclosed. The method of evaluating the performance of a control system includes calculating a ratio of a first area associated with the signal and a second area associated with the signal. The method also includes comparing the ratio with a predetermined value and determining a cause of an oscillation in the control system based on the comparison. The apparatus for evaluating the performance of a control system includes a processor operable to execute a first function configured to calculate a ratio of a first area associated with the signal and a second area associated with the signal. The first function is also configured to compare the ratio with a predetermined value and determine a cause of oscillation in the control system based on the comparison.
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Citations
35 Claims
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1. A method of evaluating the performance of a control system, the method comprising:
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acquiring an error signal associated with the control system; calculating a measure of symmetry of a half-cycle of the error signal; comparing the measure of symmetry with a predetermined value; determining a cause of an oscillation in the control system based on the comparison; and completing at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for evaluating the performance of a control system, the apparatus comprising:
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a processor operable to execute a first function, wherein the first function is configured to perform the steps of; acquiring an error signal associated with the control system; calculating a measure of symmetry of a half-cycle of the error signal; comparing the measure of symmetry with a predetermined value; determining a cause of an oscillation in the control system based on the comparison; and causing at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus for evaluating the performance of a control system, the apparatus comprising:
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means for acquiring an error signal associated with the control system; means for calculating a measure of symmetry of a half-cycle of the error signal; means for comparing the measure of symmetry with a predetermined value; means for determining a cause of an oscillation in the control system based on the comparison; and means for causing at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of evaluating the performance of a control system, the method comprising:
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detecting an oscillation in the control system; acquiring an error signal relating to the oscillation; calculating a measure of symmetry of a half-cycle of the error signal; comparing the measure of symmetry with a predetermined value; determining a cause of an oscillation in the control system based on the comparison; and completing at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device.
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35. An apparatus for evaluating the performance of a control system by monitoring an error signal for the control system, the apparatus comprising:
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a processor operable to execute a first function and a second function, wherein the first function is configured to perform the steps of; calculating a measure of symmetry of a half-cycle of the error signal; comparing the measure of symmetry with a predetermined value; determining a cause of an oscillation in the control system based on the comparison; and
wherein the second function is configured to perform the step of detecting an oscillation in the control system; andcompleting at least one of displaying the determined cause of the oscillation on an electronic display and storing the determined cause of the oscillation in a memory device.
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Specification