Method for computer-assisted determination of an optimum-fuel control of nozzles
AssigneeEADS Astrium GmbH
InventorPeter Zentgraf
Life of this patent
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Abstract
Method for the computer-assisted determination of an optimum-fuel control of nozzles according to a control instruction b=Ax. A defined matrix transformation of starting constraints for the mass flow of the nozzles and of the minimization criterion thereby takes place in a computer-assisted manner, a data processing representation of a geometric description of the matrix-transformed starting constraints, a computer-assisted determination of limiting point sets of the geometric description of the starting constraints through a computer-assisted geometric search procedure in the vector space and the application of the matrix-transformed minimization criterion to the points of the limiting point sets.
Claims9
A method for controlling nozzles based upon computer-assisted determination of an optimum-fuel control of the nozzles according to a control instruction b=Ax, whereby
- b represents a desired m-dimensional forces/torque vector,
- A represents an m×n-dimensional nozzle matrix, and
- x represents a sought n-dimensional nozzle control vector and the nozzle control vector meets a minimization criterion of
- J
- :=
- ∑
- i
- =
- 1
- i
- =
- n
-
-
- x
- i
- →
- min
- ,
- the method comprising:
- computer generating a defined matrix transformation of starting constraints for a mass flow of the nozzles and of the minimization criterion;
- data processing a representation of a geometric description of the matrix transformation of starting constraints;
- searching, with a computer-assisted geometric search procedure in vector space, limiting point sets of the geometric description of the starting constraints;
- applying the matrix transformation of minimization criterion to the points of the limiting point sets;
- and
- controlling the nozzles.
A computer control method for controlling nozzles based upon an optimum-fuel usage for the nozzles based on a m-dimensional forces/torque vector, m×n-dimensional nozzle matrix, and a n-dimensional nozzle control vector that meets a minimization criterion, the method comprising:
- generating a defined matrix transformation of starting constraints for a mass flow of the nozzles and of the minimization criterion;
- data processing a representation of a geometric description of the matrix transformation of starting constraints;
- searching, with a geometric search procedure in vector space, limiting point sets of the geometric description of the starting constraints;
- applying the matrix transformation of minimization criterion to the points of the limiting point sets;
- and
- controlling the nozzles.
Dependencies are inferred from the claim text.