IP Library Granted Patent US 11,787,553
Granted Patent B2
US 11,787,553 · App. 17/154,296 · Granted Oct 17, 2023

Engine loading regulation

Inventor: Yonghua Zhu (Montluel, FR)
Assignee: HAMILTON SUNDSTRAND CORPORATION
B64D31/06B64D2013/0662
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Quick Facts
Patent No.
US 11,787,553
App. No.
17/154,296
Granted
Oct 17, 2023
Kind
B2
Abstract

A method for regulating loading of an aircraft engine providing power to multiple loads, particularly ECS, comprising offloading selected power consuming loads according to a predetermined strategy when predetermined conditions are met.

Claims (20)

1. A method for regulating loading of an aircraft engine providing power to multiple loads, the method comprising:

formulating a predetermined offload strategy;

evaluating the predetermined strategy by means of a model created on the basis of aircraft data for offloading auxiliary loads when predetermined criteria are satisfied; and

offloading selected power consuming loads according to the predetermined offload strategy when predetermined conditions are met;

wherein formulating the predetermined strategy comprising:

defining a strategy for reducing engine loading;

creating a model based on one or more aircraft parameters to evaluate the strategy;

predicting effects on one or more aircraft characteristics using the strategy and the model;

comparing the one or more characteristics resulting from the prediction with predetermined thresholds; and

in response to the comparison, either executing the strategy on the aircraft or adjusting the strategy;

wherein the offload strategy includes one or more of: reducing use of bleed air in an environmental conditioning system of the aircraft; a start and/or end time for offloading; and pre-cooling a cabin of the aircraft before offloading.

2. The method of claim 1 , wherein after executing the strategy, actual characteristics of the aircraft are compared to the predicted characteristics and the parameters and/or model are adjusted based on the comparison.

3. The method of claim 1 , wherein the strategy includes one or more of:

reducing use of bleed air in an environmental conditioning system of the aircraft,

a start and/or end time for offloading,

pre-cooling a cabin of the aircraft before offloading.

4. The method of claim 1 , wherein the model is created based on one or more aircraft parameters, including but not limited to the number of occupants in the aircraft, a flight profile of the aircraft, thermal dynamics of an interior of the aircraft.

5. The method of claim 1 , wherein the one or more characteristics include temperature, humidity, air quality, CO 2 levels.

6. A computer product having stored thereon instructions to perform the method of claim 1 .

7. An apparatus including a processor configured to perform the method of claim 1 .

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2021
From: RAYTHEON TECHNOLOGIES CORPORATION
To: HAMILTON SUNDSTRAND CORPORATION
Reel/Frame 054992/0387 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2021
From: ZHU, YONGHUA
To: UNITED TECHNOLOGIES RESEARCH CENTRE IRELAND, LIMITED
Reel/Frame 054992/0392 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2021
From: UNITED TECHNOLOGIES RESEARCH CENTRE IRELAND, LIMITED
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054992/0395 →
Priority Claims (1)
EP 20154367 · Jan 29, 2020 · regional
Continuity (1)
Related Publication 20210229824A1 · Jul 29, 2021