US 11,834,196 B2
System and method for control for unducted engine
Sridhar Adibhatla, Glendale, OH (US); Stefan Joseph Cafaro, Maineville, OH (US); and Robert Jon McQuiston, Cincinnati, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Oct. 15, 2020, as Appl. No. 17/071,000.
Claims priority of provisional application 62/915,364, filed on Oct. 15, 2019.
Prior Publication US 2021/0108575 A1, Apr. 15, 2021
Int. Cl. F01D 7/00 (2006.01); B64D 45/00 (2006.01); B32B 7/022 (2019.01); B64C 1/12 (2006.01); B64C 1/38 (2006.01); B64D 27/12 (2006.01); F01D 5/14 (2006.01); F01D 5/18 (2006.01); F01D 5/30 (2006.01); F01D 9/04 (2006.01); F01D 15/10 (2006.01); F01D 15/12 (2006.01); F01D 17/16 (2006.01); F01D 25/12 (2006.01); F02C 6/20 (2006.01); F02C 7/264 (2006.01); F02C 7/32 (2006.01); F02C 7/36 (2006.01); F02C 9/00 (2006.01); F02C 9/22 (2006.01); F02K 1/66 (2006.01); F02K 1/76 (2006.01); B64C 1/00 (2006.01); F02C 3/113 (2006.01)
CPC B64D 45/00 (2013.01) [B32B 7/022 (2019.01); B64C 1/12 (2013.01); B64C 1/38 (2013.01); B64D 27/12 (2013.01); F01D 5/146 (2013.01); F01D 5/187 (2013.01); F01D 5/30 (2013.01); F01D 5/3007 (2013.01); F01D 7/00 (2013.01); F01D 9/041 (2013.01); F01D 15/10 (2013.01); F01D 15/12 (2013.01); F01D 17/162 (2013.01); F01D 25/12 (2013.01); F02C 6/206 (2013.01); F02C 7/264 (2013.01); F02C 7/32 (2013.01); F02C 7/36 (2013.01); F02C 9/00 (2013.01); F02C 9/22 (2013.01); F02K 1/66 (2013.01); F02K 1/76 (2013.01); B32B 2307/558 (2013.01); B32B 2307/72 (2013.01); B32B 2307/732 (2013.01); B32B 2571/02 (2013.01); B32B 2605/18 (2013.01); B64C 2001/0072 (2013.01); F02C 3/113 (2013.01); F05D 2220/323 (2013.01); F05D 2220/325 (2013.01); F05D 2230/60 (2013.01); F05D 2240/12 (2013.01); F05D 2240/24 (2013.01); F05D 2240/60 (2013.01); F05D 2250/37 (2013.01); F05D 2260/201 (2013.01); F05D 2260/30 (2013.01); F05D 2260/4031 (2013.01); F05D 2260/70 (2013.01); F05D 2270/05 (2013.01); F05D 2270/051 (2013.01); F05D 2270/121 (2013.01); F05D 2270/304 (2013.01); F05D 2270/71 (2013.01); F05D 2270/81 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A computing system for an unducted rotor engine with an unducted variable pitch vane assembly fluidly coupled to an unducted rotor assembly, the computing system comprising:
a controller configured to execute operations comprising: determining a throttle input;
determining, based on the throttle input, a desired thrust output;
generating a first pitch angle control signal for the unducted rotor assembly and a second pitch angle control signal for the unducted variable pitch vane assembly based on the desired thrust output determining, using an engine model and a plurality of engine sensor measurements, a thrust estimate;
generating, based on a difference between the desired thrust output and the thrust estimate, an adjustment to at least one of the first pitch angle control signal and the second pitch angle control signal;
receiving, via an acoustic sensor an acoustic signal; and
wherein the generating the adjustment to at least one of the first pitch angle control signal and the second pitch angle control signal is further based on the acoustic signal.