Method of optimizing an electrical cabling

• US 7,676,771 B2
• Filed: 04/04/2005
• Issued: 03/09/2010
• Est. Priority Date: 04/02/2004
• Status: Expired due to Fees

• Current Assignee: Airbus Operations SAS (Airbus SE)
• Original Assignee: Airbus France
• Inventors: Boubekeur, Jean-Luc
• Primary Examiner(s): SIEK, VUTHE
• Application Number:
  US11/097,276
• Publication Number:
  US 20050271350A1
• Time in Patent Office: 1,800 Days
• Field of Search: 716/2, 716 12- 15, 174/68.1, 174/250, 174/72.R, 174/72.A, 703/1
• US Class Current: 716/133
• CPC Class Codes: B60R 16/0207 Wire harnesses

Abstract

In this optimization procedure for the cabling, the characteristics of the cables used to connect a power source to a receiving charge are defined in function of the predetermined and environmental constraints. In the cases where a line realizing the link between the power source and the receiving charge is comprised of several distinct cables connected through cutouts, the section of cables is dimensioned for each cable in the line, independently of the other cables, and is then optimized while taking the overall constraints of the line into account.

Claims

1. A method of optimizing cabling, which is implemented by a data processing system, the method comprising:

defining, with the data processing system, characteristics of a line connecting a power source to a receiving charge as a function of constraints of the line that are predetermined and environmental,

dividing, with the data processing system, said line into several distinct cable segments connected in series to each other via a plurality of cutouts such that each cutout separates two adjacent cable segments connected in series to each other via said cutout,

selecting, with the data processing system, a gage for each individual cable segment in the line so as to optimize said cabling while taking the constraints of the line into account by determining for at least one cable segment. several gages of usable cables based on the constraints,

combining said cable segments according to different combinations of said gages in order to form one line,

verifying for each line whether the constraints have been satisfied for the line, and

selecting gages for each cable segment of said cable segments so that the line has a lowest mass.

2. A method in accordance with claim 1, wherein, prior to said selecting of the gage, the method comprises routing of the line and cable segments so as to calculate a path for the line and cable segments.

3. A method in accordance with claim 2, further comprising determining at least an approximate positioning of the cutouts that separate the cable segments based on said routing.

4. A method in accordance with claim 1, further comprising storing characteristics of different varieties of cable segments configured to be used for implementing the cabling in a data base.

5. A method in accordance with claim 1, wherein said selecting comprises optimizing overall mass of the cable segments for two discrete variables, for a type and for the gage of the cable segments.

6. A method in accordance with claim 1, wherein said cabling is an electrical cabling.

7. A method in accordance with claim 6, wherein the predetermined constraints include a maximal intensity value defined by a cutout switch and by a maximal permissible drop in voltage.

8. A method in accordance with claim 7, wherein the environmental constraints include the ambient temperature.

9. A method in accordance with claim 1, wherein said line comprises at least a first cable segment and a second cable segment connected in series to each other via one of said cutouts, and wherein said selecting of said gage comprises selecting a first gage for said first cable segment and selecting a second gage for said second cable segment, wherein said first and second gages are different from each other.

10. A method in accordance with claim 9, further comprising selecting a type of cable for each of the cables in said line, wherein the type of cable for a cable segment is defined by the cable'"'"'s shielding and insulating properties, the cable'"'"'s materials and the cable'"'"'s number of wires, and wherein said selecting of said type of cable comprises selecting a first type of cable for said first cable segment and selecting a second type of cable for said second cable segment, wherein said first and second types of cable are different from each other.

11. A method in accordance with claim 10, wherein said selecting of said gage and said selecting of said type of cable are performed so as to minimize the line'"'"'s mass.

12. A method in accordance with claim 10, wherein said environmental constraints are specific to an aircraft environment.

13. A method in accordance with claim 9, wherein said selecting of said gage is performed so as to minimize the line'"'"'s mass.

14. A method in accordance with claim 1, further comprising selecting a type of cable for each of the cable segments in said line, wherein the type of cable for a cable segment is defined by the cable'"'"'s shielding and insulating properties, the cable'"'"'s materials and the cable'"'"'s number of wires, wherein said line comprises at least a first cable segment and a second cable segment connected in series to each other via one of said cutouts, and wherein said selecting of said type of cable comprises selecting a first type of cable for said first cable segment and selecting a second type of cable for said second cable segment, wherein said first and second types of cable are different from each other.

15. A method in accordance with claim 1, wherein a maximum current for each segment of said line is computed during said optimizing of said cabling.

16. A method in accordance with claim 1, wherein in said selecting said gages, thermal constraints including ambient temperature and thermal dissipation as a result of the Joule effect are considered.

17. A computer-readable storage device encoded with a computer executable code for implementing a method of optimizing cabling, the method comprising:

defining characteristics of a line connecting a power source to a receiving charge as a function of constraints of the line that are predetermined and environmental;

dividing said line into several distinct cable segments connected in series to each other via a plurality of cutouts such that each cutout separates two adjacent cable segments connected in series to each other via said cutout;

selecting a gage for each individual cable segment in the line so as to optimize said cabling while taking the constraints of the line into account by determining for at least one cable segment, several gages of usable cables based on the constraints;

combining said cable segments according to different combinations of said gages in order to form one line;

verifying for each line whether the constraints have been satisfied for the line; and

selecting gages for each cable segment of said cable segments so that the line has a lowest mass.

18. A data processing system configured to optimize cabling, comprising:

a definition unit configured to define characteristics of a line connecting a power source to a receiving charge as a function of constraints of the line that are predetermined and environmental;

a dividing unit configured to divide said line into several distinct cable segments connected in series to each other via a plurality of cutouts such that each cutout separates two adjacent cable segments connected in series to each other via said cutout; and

a selection unit configured to select a gage for each individual cable segment in the line so as to optimize said cabling while taking the constraints of the line into account by determining for at least one cable segment, several gages of usable cables based on the constraints, to combine said cable segments according to different combinations of said gages in order to form one line, to verify for each line whether the constraints have been satisfied for the line, and to select gages for each cable segment of said cable segments so that the line has a lowest mass.