1. Airbus Flight Control Systems and future evolutions
Journée Nationale de réflexion et prospective sur les systèmes embarqués
Presented by
Jean-Philippe BEAUJARD
Fight Control System Team Leader on A400M program
Airbus Flight Control Systems
and future evolutions
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2. AIRBUS FLIGHT CONTROL SYSTEMS
Contents
Evolution of Airbus Flight Controls
A view of the future
system architecture
avionics
specifications
software
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17 JUIN 2003

3. Evolution of Airbus Flight Controls
In the Early Days ...
FARMAN F60 GOLIATH 1st flight 1919
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17 JUIN 2003

4. Evolution of Airbus Flight Controls
Mechanical Flight Controls
ARMAGNAC 1st flight 1949
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17 JUIN 2003

5. CARAVELLE 1st flight May 1955
Evolution of Airbus Flight Controls
1st Hydro-mechanical servo controls
CARAVELLE 1st flight May 1955 Hy
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17 JUIN 2003

6. Evolution of Airbus Flight Controls
Bloc diagrams
Written by ELLIOTT AVIONICS
(equipment supplier) and Sud Aviation
(automatic pilot and manual flight controls)
1st Electrical Flight Controls
CONCORDE 1st flight 1969 Hy
Analogic computers
Analogic computers
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

7. Written by AIRBUS (aircraft manufacturer)
Evolution of Airbus Flight Controls
Written by AIRBUS (aircraft manufacturer)
formal specs
(automatic pilot and manual flight controls)
2nd generation of Electrical Flight Controls March 1984
S.A.O. Hy
HY3
HY1
A st flight Feb 1987
Digital computers
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17 JUIN 2003

8. Flare Law S.A.O. Evolution of Airbus Flight Controls SINCE EARLY 80 ’s
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17 JUIN 2003

9. Evolution of Airbus Flight Controls
Written by AIRBUS (aircraft manufacturer)
formal specs
Full Electrical Flight Controls 1997 Hy Hy
SCADE
S.A.O.
HY3
HY1
Digital computers
A st flight Apr 2001
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

10. Evolution of Airbus Flight Controls
Written by AIRBUS (aircraft manufacturer)
formal specs
A380 “SPACE SHIP” 2001 Hy
SCADE Hy
Digital computers
HY1
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

11. Written by ELLIOTT AVIONICS
These bloc diagrams were the genetical origin of SAO/SCADE
Flare Law
dated 1972
Written by ELLIOTT AVIONICS
(equipment supplier)
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

12. Evolution of Airbus Flight Controls
1st Airbus aircraft May 1969
Written by SFENA
(equipment supplier)
Bloc diagrams
(automatic pilot)
HY3
HY2
HY1 Hy
A300 B1 1st flight Oct 1972
Analogic computers
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

13. Evolution of Airbus Flight Controls
1st Embedded Software 1982
Written by AEROSPATIALE
(aircraft manufacturer)
Bloc diagrams
(automatic pilot) Hy
HY3
HY2
HY1
A st flight 1984
First Digital computers
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

14. (aircraft manufacturer)
Flare Law
dated 1984
Written by AIRBUS
(aircraft manufacturer)
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

15. Reduce weight again and again
A view of the future
Reduce weight again and again
Electronic Volumes
COMPLEXITY
smart actuator
smart side-stick
HY1
active control laws
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

16. Blue input is used in laws every d +j1 seconds (j1 is variable)
A view of the future
Minimize interfaces d
Blue input is used in laws every d +j1 seconds (j1 is variable)
multiplexed buses
minimize input-output jitters
minimize delays
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17 JUIN 2003

17. Move from specification reviews to analysis
A view of the future
Move from specification reviews to analysis
MATHEMATICAL PROOF CAN BE REPEATED AND CHECKED BY OTHERS
A380 FLARE LAW
FCTL SPECIFICATION
3000 SCADE sheets
Prooved component
Prooved Flare law component
uses
a set of
prooved
components
Prooved Flare law component 17
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17 JUIN 2003

18. AUTOMATIC CODE GENERATOR
A view of the future
Get your software in the box within a day
AUTOMATIC CODE GENERATOR
NODES
QUALIFIED
CODE
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17 JUIN 2003

19. A view of the future Theory
We need a theory to support the design of complex systems mixing sampled booleans, integers and real values,
So, our designs can integrate structures that are easier to analyse automatically,
And use structures that ease determinism.
Keep your complex system safe and simple.
c AIRBUS FRANCE All rights reserved
17 JUIN 2003

20. Ce document et son contenu sont la propriété d’AIRBUS FRANCE S. A. S
Ce document et son contenu sont la propriété d’AIRBUS FRANCE S.A.S. Aucun droit de propriété intellectuelle n’est accordé par la communication du présent document ou son contenu. Ce document ne doit pas être reproduit ou communiqué à un tiers sans l’autorisation expresse et écrite d’AIRBUS FRANCE S.A.S. Ce document et son contenu ne doivent pas être utilisés à d’autres fins que celles qui sont autorisées.
Les déclarations faites dans ce document ne constituent pas une offre commerciale. Elles sont basées sur les postulats indiqués et sont exprimées de bonne foi. Si les motifs de ces déclarations n’étaient pas démontrés, AIRBUS FRANCE S.A.S serait prêt à en expliquer les fondements.
c AIRBUS FRANCE All rights reserved
17 JUIN 2003