公开(公告)号：US20210324758A1

公开(公告)日：2021-10-21

申请号：US17359894

申请日：2021-06-28

Applicant: Raytheon Technologies Corporation

Inventor： Subhradeep Chowdhury ,  David M. Bostwick ,  David Gelwan ,  Frederick M. Schwarz

IPC: F01D19/02 ,  F02C9/00 ,  B64D27/12 ,  B64D41/00 ,  B64F1/36 ,  F01D25/34 ,  F02C3/04 ,  F02C6/20 ,  F02C7/277

Abstract: A system is provided for multi-engine coordination of gas turbine engine motoring in an aircraft. The system includes a controller operable to determine a motoring mode as a selection between a single engine dry motoring mode and a multi-engine dry motoring mode based on at least one temperature of a plurality of gas turbine engines and initiate dry motoring based on the motoring mode.

公开(公告)号：US20230160347A1

公开(公告)日：2023-05-25

申请号：US18153487

申请日：2023-01-12

Applicant: Raytheon Technologies 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

CPC classification number: F02C9/00 ,  B64D27/02 ,  B64D2027/026 ,  F05D2220/76 ,  F05D2220/323 ,  F05D2240/60 ,  F05D2260/80 ,  F05D2270/09 ,  F05D2270/20 ,  F05D2270/44 ,  F05D2270/80

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.

公开(公告)号：US11674411B2

公开(公告)日：2023-06-13

申请号：US17359894

申请日：2021-06-28

Applicant: Raytheon Technologies Corporation

Inventor： Subhradeep Chowdhury ,  David M. Bostwick ,  David Gelwan ,  Frederick M. Schwarz

IPC: F01D19/02 ,  B64D27/12 ,  B64D41/00 ,  F02C9/00 ,  B64F1/36 ,  F01D25/34 ,  F02C3/04 ,  F02C6/20 ,  F02C7/277

CPC classification number: F01D19/02 ,  B64D27/12 ,  B64D41/00 ,  B64F1/364 ,  F01D25/34 ,  F02C3/04 ,  F02C6/20 ,  F02C7/277 ,  F02C9/00 ,  B64D2041/002 ,  F05D2220/323 ,  F05D2220/50 ,  F05D2260/85 ,  F05D2270/303

Abstract: A system is provided for multi-engine coordination of gas turbine engine motoring in an aircraft. The system includes a controller operable to determine a motoring mode as a selection between a single engine dry motoring mode and a multi-engine dry motoring mode based on at least one temperature of a plurality of gas turbine engines and initiate dry motoring based on the motoring mode.