发明名称 |
METHOD AND APPARATUS FOR IN-SITU DETECTION AND ISOLATION OF AIRCRAFT ENGINE FAULTS |
摘要 |
A method for performing a fault estimation based on residuals of detected signals includes: determining an operating regime based on a plurality of parameters; extracting predetermined noise standard deviations of the residuals corresponding to said operating regime and scaling the residuals; calculating a magnitude of a measurement vector of the scaled residuals and comparing the magnitude to a decision threshold value; extracting a mean direction and a fault level mapping for each of a plurality of fault types, based on the operating regime; calculating a projection of the measurement vector onto the mean direction of each of the plurality of fault types; determining a fault type based on which projection is maximum; and mapping the projection to a continuous-valued fault level using a lookup table. |
申请公布号 |
CA2524735(C) |
申请公布日期 |
2014.08.05 |
申请号 |
CA20052524735 |
申请日期 |
2005.10.28 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BONANNI, PIERINO GIANNI;BRUNELL, BRENT JEROME |
分类号 |
G01M13/00;G01M15/00 |
主分类号 |
G01M13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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