Patent ID: 7865334
Filing Date: 2011-01-04
Classification: G05B

Abstract:
1. A method of evaluating the performance of a control system using a computerized device, the method comprising: receiving a signal associated with the control system at an input of the computerized device; using processing electronics of the computerized device to obtain the signal from the input of the computerized device and to calculate a ratio of a first area and a second area associated with a peak value of the signal received from the control system; using the processing electronics of the computerized device to compare the ratio with a predetermined value for the ratio; using the processing electronics of the computerized device to determine a cause of an oscillation in the control system based on the comparison of the ratio with the predetermined value for the ratio, wherein determining the cause of the oscillation in the control system comprises distinguishing between a first cause and a second cause by selecting the first cause when the ratio is greater than or equal to the predetermined value for the ratio and selecting the second cause when the ratio is less than the predetermined value for the ratio; and using the processing electronics to at least one of display the determined cause on an electronic display and store the determined cause in a memory device.