Exponentially weighted moving averaging filter with adjustable weighting factor

摘要

A method of increasing a weighting factor of an exponentially weighted moving averaging (“EWMA”) filter is provided. The method includes monitoring a data stream containing raw data values, and determining an EWMA value based on the data stream by an electronic control module. The method includes determining if the EWMA value is between a predetermined maximum fault threshold value and a predetermined minimum fault threshold value. The method includes increasing the weighting factor of the EWMA filter to more heavily weigh incoming raw data values of the data stream based on the difference between the first raw data value and a previously calculated filtered value exceeding the calibration value.

主权项

1. A method of increasing a weighting factor of an exponentially weighted moving averaging (“EWMA”) filter, comprising:
monitoring a data stream containing raw data values and determining an EWMA value based on the data stream by an electronic control module including operative logic; determining if the EWMA value is between a predetermined maximum fault threshold value and a predetermined minimum fault threshold value; increasing the weighting factor of the EWMA filter to an adjusted weighting factor to more heavily weigh incoming raw data values of the data steam based on the difference between the first raw data value and a previously calculated filtered data value exceeding the calibration value; comparing the raw data values to the WPA maximum level and the WPA minimum level; and generating a rapid healing logic signal if the raw values are greater than the WPA minimum level and less than the WPA maximum level, the rapid healing logic signal indicating existence of a potential corrective action.