IP Library › Granted Patent US 8,463,496
Granted Patent B2
US 8,463,496 · App. 13/176,791 · Granted Jun 11, 2013

Decoupling control architecture for pressure and flow controls in series

Inventors: Jeffrey Ernst (Wethersfield, CT); Kenneth F. Bibbins (Simsbury, CT); Bruce R. Schroder (Agawam, MA)
Assignee: Hamilton Sundstrand Corporation
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Quick Facts
Patent No.
US 8,463,496
App. No.
13/176,791
Granted
Jun 11, 2013
Kind
B2
Abstract

An electronic controller for a sub-system of an air management system including an area conversion module and a sub-system area control module. The area conversion module includes inputs for a bleed output pressure set point, a bleed output pressure measurement, a sub-system parameter set point, a sub-system parameter measurement, and a sub-system output pressure measurement; and sub-modules for calculating an area set point and an area measurement. The sub-modules generate the area set point as a function of the engine bleed output pressure set point, the sub-system parameter set point, and the sub-system output pressure measurement; and the area measurement as a function of the bleed output pressure measurement, the sub-system parameter measurement, and the sub-system output pressure measurement. The sub-system area control module generates a control output for the sub-system as a function of the calculated area set point and the calculated area measurement.

Claims (43)

1. An electronic controller for a sub-system of an air management system, the controller comprising:

an area conversion module, the area conversion module comprising:

an input for receiving an engine bleed output pressure set point;

an input for receiving an engine bleed output pressure measurement;

an input for receiving a sub-system parameter set point;

an input for receiving a sub-system parameter measurement;

an input for receiving a sub-system output pressure measurement;

an area set point sub-module to generate a calculated area set point output representing a restriction of flow through a subsystem, as a function of at least the engine bleed output pressure set point input, the sub-system parameter set point input, and the sub-system output pressure measurement input; and

an area measurement sub-module to generate a calculated area measurement output representing a restriction of flow through a subsystem, as a function of at least the engine bleed output pressure measurement input, the sub-system parameter measurement input, and the sub-system output pressure measurement input; and

a sub-system area control module to generate a control output to control the sub-system, wherein the control output is a function of the area conversion module calculated area set point output and the area conversion module calculated area measurement output.

2. The controller of claim 1 , wherein the sub-system is an environmental control system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the environmental control system.

3. The controller of claim 1 , wherein the sub-system is a wing anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the wing anti-ice system.

4. The controller of claim 1 , wherein the sub-system is an engine anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the engine anti-ice system.

5. The controller of claim 1 , wherein the sub-system is an inert gas system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the inert gas system.

6. An air management system comprising:

an electronic controller for a sub-system, the controller comprising: an area conversion module, the area conversion module comprising:

an input for receiving an engine bleed output pressure set point;

an input for receiving an engine bleed output pressure measurement;

an input for receiving a sub-system parameter set point;

an input for receiving a sub-system parameter measurement;

an input for receiving a sub-system output pressure measurement;

an area set point sub-module to generate a calculated area set point output representing a restriction of flow through a subsystem, as a function of at least the engine bleed output pressure set point input, the sub-system parameter set point input, and the sub-system output pressure measurement input;

and an area measurement sub-module to generate a calculated area measurement output representing a restriction of flow through a subsystem, as a function of at least the engine bleed output pressure measurement input, the sub-system parameter measurement input, and the sub-system output pressure measurement input;

and a sub-system area control module to generate a control output to control the sub-system, wherein the control output is a function of the area conversion module calculated area set point output and the area conversion module calculated area measurement output;

and an engine bleed control module to generate a control output to control the engine bleed system, wherein the control output is a function of the engine bleed output pressure set point input and the engine bleed output pressure measurement input.

7. The system of claim 6 , wherein the sub-system is an environmental control system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the environmental control system.

8. The system of claim 6 , wherein the sub-system is a wing anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the wing anti-ice system.

9. The system of claim 6 , wherein the sub-system is an engine anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the engine anti-ice system.

10. The system of claim 6 , wherein the sub-system is an inert gas system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the inert gas system.

11. A method for controlling a sub-system of an air management system by a controller, the method comprising:

receiving an engine bleed system output pressure set point;

receiving a sub-system parameter set point;

measuring the engine bleed system output pressure corresponding to the received engine bleed system output pressure set point;

measuring the sub-system parameter corresponding to the received sub-system parameter set point;

measuring the sub-system output pressure;

generating by the controller a calculated area set point representing a restriction of flow through a subsystem as a function of at least the engine bleed system output pressure set point, the sub-system parameter set point, and the sub-system output pressure measurement;

generating by the controller a calculated area measurement output representing a restriction of flow through a subsystem as a function of at least the engine bleed system output pressure measurement, the sub-system parameter measurement, and the sub-system output pressure measurement;

generating by the controller a control command as a function of the generated calculated area measurement to the generated calculated area set point; and

transmitting the generated control command to control the sub-system.

12. The method of claim 11 , wherein the sub-system is an environmental control system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the environmental control system.

13. The method of claim 11 , wherein the sub-system is a wing anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the wing anti-ice system.

14. The method of claim 11 , wherein the sub-system is an engine anti-ice system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the engine anti-ice system.

15. The method of claim 11 , wherein the sub-system is an inert gas system, and the sub-system parameter is air flow rate or inlet air pressure downstream of a control valve of the inert gas system.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2011
From: ERNST, JEFFREY; BIBBINS, KENNETH F.; SCHRODER, BRUCE R.
To: HAMILTON SUNDSTRAND CORPORATION
Reel/Frame 026546/0614 →
Continuity (1)
Related Publication 20130013145A1 · Jan 10, 2013