公开(公告)号：US11807378B2

公开(公告)日：2023-11-07

申请号：US16829172

申请日：2020-03-25

Applicant: RTX CORPORATION

Inventor： David Gelwan ,  Jesse W. Clauson ,  Frederick M. Schwarz

IPC: F01D19/02 ,  B64D31/12 ,  F02C9/00 ,  F02C7/27 ,  F02C7/277 ,  F02C9/18 ,  F02C7/26 ,  F02C7/268 ,  F02C7/275

CPC classification number: B64D31/12 ,  F01D19/02 ,  F02C7/27 ,  F02C7/277 ,  F02C9/00 ,  F02C9/18 ,  F02C7/26 ,  F02C7/268 ,  F02C7/275 ,  F05D2220/323 ,  F05D2220/50 ,  F05D2240/40 ,  F05D2260/85 ,  F05D2270/304

Abstract: A system is provided for alternating starter use during multi-engine motoring in an aircraft. The system includes a first engine starting system of a first engine. A first controller is in communication with a second controller that controls a second engine starting system of a second engine, the first controller being configured to intermittently direct power to the first engine starting system to alternately accelerate and decelerate the first engine during motoring with respect to the second engine.

公开(公告)号：US12140083B2

公开(公告)日：2024-11-12

申请号：US18153487

申请日：2023-01-12

Applicant: RTX Corporation

Inventor： Timothy J. Crowley ,  Sorin Bengea ,  Manuj Dhingra ,  David Gelwan ,  Kevin Hendricks ,  Joshua Adams ,  Martin Richard Amari ,  Richard P. Meisner ,  David Lei Ma

IPC: F02C9/00 ,  B64D27/02

Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.