US 11,840,966 B1
Tuning engine parameter estimator using gas path analysis data
Joshua Adams, New Hartford, CT (US); Danbing Seto, Avon, CT (US); and Ramesh Rajagopalan, Glastonbury, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Nov. 18, 2022, as Appl. No. 17/990,487.
Int. Cl. F02C 9/00 (2006.01)
CPC F02C 9/00 (2013.01) [F05D 2270/11 (2013.01); F05D 2270/20 (2013.01); F05D 2270/44 (2013.01); F05D 2270/71 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An engine parameter estimation tuning system comprising:
an engine parameter estimator unit including an onboard model configured to output estimated parameters based on operation of a gas turbine engine;
a gas path analysis unit configured to produce a long-term deterioration parameter; and
a performance health monitor unit included in the gas path analysis unit, the gas path analysis unit configured to adjust the long-term deterioration parameter independently from adjustment of a short-term tuning parameter to generate an adjusted long-term deterioration parameter, and configured to tune one or more targeted estimation parameters included in the estimated parameters based on the adjusted long-term deterioration parameter,
wherein the engine parameter estimator unit includes an onboard model self-tuning module configured to receive measured engine parameters output from a sensor monitoring the gas turbine engine and utilizes the measured engine parameters to generate the short-term tuning parameter.