Methods and systems for estimating operating parameters of an engine
First Claim
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1. A method for estimating an operating parameter of a turbine engine, said method comprising:
- receiving a plurality of sensor inputs;
calculating the operating parameter using at least one of the plurality of sensor inputs and using a first model of the turbine engine;
determining whether an anomaly is present in the calculated operating parameter using a redundancy system, the redundancy system comprising a second model of the turbine engine, said second model including a first backup model configured to receive a first set of sensor inputs of the plurality of sensor inputs and a second backup model configured to receive a second set of sensor inputs of the plurality of sensor inputs; and
outputting an estimated operating parameter determined using the first model if no anomaly is present or determined using the second model if an anomaly associated with the first model is present.
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Abstract
A method for estimating an operating parameter of a turbine engine is provided. The method includes receiving at least one sensor input, calculating the operating parameter using at least the one sensor input, and determining whether an anomaly is present in the calculated operating parameter using a redundancy system. An estimated operating parameter is output.
60 Citations
17 Claims
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1. A method for estimating an operating parameter of a turbine engine, said method comprising:
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receiving a plurality of sensor inputs; calculating the operating parameter using at least one of the plurality of sensor inputs and using a first model of the turbine engine; determining whether an anomaly is present in the calculated operating parameter using a redundancy system, the redundancy system comprising a second model of the turbine engine, said second model including a first backup model configured to receive a first set of sensor inputs of the plurality of sensor inputs and a second backup model configured to receive a second set of sensor inputs of the plurality of sensor inputs; and outputting an estimated operating parameter determined using the first model if no anomaly is present or determined using the second model if an anomaly associated with the first model is present. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An estimation system for estimating an operating parameter, said estimation system comprising:
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a primary model configured to receive a plurality of sensor inputs and to estimate the operating parameter using at least the sensor input; and a redundancy system comprising a predetermined number of backup models including at least a first backup model configured to receive a first set of sensor inputs of the plurality of sensor inputs and a second backup model configured to receive a second set of sensor inputs of the plurality of sensor inputs, said predetermined number of backup models being equal to a number of the plurality of sensor inputs, said redundancy system configured to receive the estimated operating parameter and to determine whether an anomaly is present within the estimated operating parameter, said redundancy system further configured to estimate the operating parameter using at least one of the plurality of sensor inputs when the anomaly is present. - View Dependent Claims (9, 10, 11)
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12. A gas turbine engine for use in an aircraft, said gas turbine engine comprising:
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a plurality of sensors configured to receive a plurality of sensor inputs and to sense an engine parameter and to generate a sensor input representing the engine parameter; a control system configured to control at least one of said gas turbine engine and the aircraft; and an estimation system coupled in communication with said control system, said estimation system configured to output an estimated operating parameter to said control system, said estimation system comprising; a primary model configured to receive at least one of the plurality of sensor inputs and to estimate the operating parameter using the at least one of the plurality of sensor inputs; and a redundancy system comprising a secondary model that includes a first backup model configured to receive a first set of sensor inputs of the plurality of sensor inputs and a second backup model configured to receive a second set of sensor inputs of the plurality of sensor inputs, said redundancy system configured to receive the estimated operating parameter and to determine whether an anomaly is present within the estimated operating parameter, said redundancy system further configured to generate a secondary operating parameter using the secondary model and output the secondary operating parameter to the control system. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification