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AIRBUS EMBEDDED SYSTEMS
Presented by Pascal TRAVERSE

Airbus Embedded Systems
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
AIRCRAFT SYSTEM OVERVIEW

Definition of a system

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary docume...
AIRCRAFT SYSTEM OVERVIEW

Embedded system

(systèmes embarqués, systèmes enfouis)
Prototype of
artificial hart
(CARMAT)

©...
AIRCRAFT SYSTEM OVERVIEW
AIRFRAME SYSTEMS
21
24
27
30
33
36

AIR COND.
ELECTRICAL POWER
FLIGHT CONTROLS
ICE & RAIN PROTECT...
AIRCRAFT SYSTEM OVERVIEW

Systems represent

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
REQUIREMENT CAPTURE
•Explicit requirements
classical allocation process
General A380-800 objectives

• Mission and perform...
REQUIREMENT CAPTURE

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Availability is mandator...
REQUIREMENT CAPTURE
Airworthiness regulation is a legal obligation contracted by
States signatories of the ICAO Convention...
REQUIREMENT CAPTURE

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Airworthiness
regulation...
REQUIREMENT CAPTURE
•Industrial constraints
 Systems

are expensive components and thus installed
as late as possible in ...
REQUIREMENT CAPTURE
•Design for Assembly
Define

integration tests during the system development

Reduce

these tests du...
REQUIREMENT CAPTURE

• Addressing environmental topics

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary ...
REQUIREMENT CAPTURE
•Derived requirements – from design solution
•Implicit requirements
From “expectations” to “needs” and...
REQUIREMENT CAPTURE
Aircraft
Specification

AIRCRAFT

Design
A/C Fct
Specification

Aircraft function

Aircraft function

...
REQUIREMENT CAPTURE
Are the needs
acceptable?

Validation of the final
product versus customer
needs

Assumptions

© AIRBU...
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

REQUIREMENT CAPTURE

Some V&V means

Airbus E...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
SAFETY REQUIREMENTS & SAFETY PROCESS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Partial...
SAFETY REQUIREMENTS & SAFETY PROCESS
• « FAILURE CONDITION »
DEFINITION FROM CS 25 1309

• A « Failure Condition » is defi...
SAFETY REQUIREMENTS & SAFETY PROCESS
SAFETY SEVERITY CLASSES AND ASSOCIATED OBJECTIVES
Classes

Objectives at FC
level

Ob...
SAFETY REQUIREMENTS & SAFETY PROCESS
Extremely Improbable
 No single failure

10-9/FH

Development Assurance Level

(DO1...
SAFETY REQUIREMENTS & SAFETY PROCESS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Some pa...
SAFETY REQUIREMENTS & SAFETY PROCESS
TOP (AIRCRAFT)
–

Cost
requirement
s
Safety &
Reliability
method
and process

A/C
con...
SAFETY REQUIREMENTS & SAFETY PROCESS
Cost
requirement
s

Top Level
Top Level
Program
Product
Requirement Requirement
s
s

...
SAFETY REQUIREMENTS & SAFETY PROCESS
Cost
requirement
s
Safety &
Reliability
method
and process

-

- Research,

Top Level...
SAFETY REQUIREMENTS & SAFETY PROCESS
Certification major objective is to ensure safety
25.1309, 25.xyz, ARP4754/ED79, DO17...
SAFETY REQUIREMENTS & SAFETY PROCESS

coordination with judicial authorities

© AIRBUS S.A.S. All rights reserved. Confide...
SAFETY REQUIREMENTS & SAFETY PROCESS

Baghdad

Nov 2003 - A300 Loss of 3 hydraulic circuits + fire

© AIRBUS S.A.S. All ri...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
INTEGRATION

•Proper interfacing and
integration
Software

modules

computer/actuator



systems



systems in aircraft...
INTEGRATION
From airplane to
“nuts and
bolts”
… and back

© AIRBUS S.A.S. All rights reserved. Confidential and proprietar...
INTEGRATION – Value Engineering

A/C fly-away
price as link
between
operator and
manufacturer
economics

A/C fly-away pric...
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

INTEGRATION

lighting

cold

Airbus Embedded ...
INTEGRATION

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

Integration in the society

Inte...
EADS Vision 2020

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

INTEGRATION
The worldwide l...
INTEGRATION

Mechanics
Aeronautics
Automatic control

Human-Machine
interface

Electricity
Fluids

Design (AI-B612  …)

©...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
TIME ISSUES
•Need to make trade-off
System weight vs. cost; reliability vs. weight … never
safety



System

complexity ...
TIME ISSUES
Specify
the
system
Plan the
system
development

Design
the
system

Specify
the
equipment

Develop,
Verify the
...
TIME ISSUES
Type
Certification

End of
studies

Flight tests

Authorization
to offer ATO

Integration
tests

© AIRBUS S.A....
TIME ISSUES
Technical challenges

Side-stick:
•1st test in flight on a modified Concorde in 1978, then an A300 in
1982
•En...
TIME ISSUES
Continuous improvement

Safety innovation, customer new expectation
...

© AIRBUS S.A.S. All rights reserved. ...
AIRBUS EMBEDDED SYSTEMS

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

•Aircraft system ove...
AIRBUS EMBEDDED SYSTEMS
•Some lessons
The

system will function if

 properly integrated within its environment (other s...
AIRBUS EMBEDDED SYSTEMS
Safety is the priority in aviation – flying is safe
Nothing is granted

Duty for continuous impro...
Club Inter-associations Systèmes Embarqués
Critiques - CISEC
Séminaires, journées d’étude, ateliers …

© AIRBUS S.A.S. All...
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

THANK YOU THANK YOU – QUESTIONS?

CISEC -

ht...
This document and all information contained herein is the sole
property of AIRBUS S.A.S. No intellectual property rights a...
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2013-2014 CISEC Conferences : Airbus embedded system architecture, Pascal Travserse

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Two key elements of aeronautics system are that they must be embedded in the aircraft, and highly dependable. Airbus airplanes are providing practical examples of such systems.
“Embedded systems” in a broad sense are key levers to optimise airplane. Indeed, success of an airplane design depends heavily on the functions that are provided by embedded systems and on the level of synergy between airplane and system functions design. Systems supporting vehicle control functions are fully embedded in the airplane avionics, but also in structure and flight mechanics, to the benefit of reduced structural weight, and enhanced manoeuvrability. An integral design process is applied.
The architecture of these systems is based on the sub-functions they have to implement; the technologies are selected to address all the multiple requirements of these functions, including the specificities of aeronautics such as dependability, long time supportability, market specificities.
The presentation is based on the experience accrued during the development and the in-service support of the Airbus family, from A320 to A350, on fly-by-wire systems and other related systems

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2013-2014 CISEC Conferences : Airbus embedded system architecture, Pascal Travserse

  1. 1. AIRBUS EMBEDDED SYSTEMS Presented by Pascal TRAVERSE Airbus Embedded Systems
  2. 2. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 2
  3. 3. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 3
  4. 4. AIRCRAFT SYSTEM OVERVIEW Definition of a system © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. A combination of inter-related items arranged to perform a specific functions(s), see ARP 4754. Example, an airplane is a system: • which is a component of the transport system, • which is, itself, made up of several airborne systems. Airbus Embedded Systems 19/11/2013 Page 4
  5. 5. AIRCRAFT SYSTEM OVERVIEW Embedded system (systèmes embarqués, systèmes enfouis) Prototype of artificial hart (CARMAT) © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. PAssive Start and Entry System (Continental AG) Video telephony as imagined in 1910 Airbus Embedded Systems 19/11/2013 Page 5
  6. 6. AIRCRAFT SYSTEM OVERVIEW AIRFRAME SYSTEMS 21 24 27 30 33 36 AIR COND. ELECTRICAL POWER FLIGHT CONTROLS ICE & RAIN PROTECTION LIGHTS PNEUMATIC 22 AUTO FLIGHT 25 EQUIPMENT 28 FUEL 31 INSTRUMENTS 34 NAVIGATION ....... TA 23 26 29 32 35 EX CAR DO ---- COMMUNICATIONS FIRE PROTECTION HYDRAULIC POWER LANDING GEAR OXYGEN PERD © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. ATC Airbus Embedded Systems 19/11/2013 Page 6
  7. 7. AIRCRAFT SYSTEM OVERVIEW Systems represent © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. about 30% of the Aircraft price Computers represent about 40% of the Systems price Airbus Embedded Systems 19/11/2013 Page 7
  8. 8. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 8
  9. 9. REQUIREMENT CAPTURE •Explicit requirements classical allocation process General A380-800 objectives • Mission and performance (8000 NM / 555 pax ) SYSTEMS Direct Weight • Improve Aircraft safety • Life cycle cost and COC (- 17% per seat) safety Direct cost, maintenance © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. • Service readiness at EIS (maturity at First Flight) • Dispatch reliability : 99% at EIS • A platform for 30 years of evolutions quality reliability Obsolescence, evolution Integration / Trade-off between requirements Airbus Embedded Systems 19/11/2013 Page 9
  10. 10. REQUIREMENT CAPTURE © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Availability is mandatory (the direct cost of a delay) Maintainability In very diverse conditions Airbus Embedded Systems 19/11/2013 Page 10
  11. 11. REQUIREMENT CAPTURE Airworthiness regulation is a legal obligation contracted by States signatories of the ICAO Convention © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. To Ensure and Preserve AIRWORTHINESS and AVIATION SAFETY •Chicago Convention, signed 7th December 1944, established the International Civil Aviation Organization. •To undertake International Air Transport, each nation has to be a signatory (currently 188 nations) Airbus Embedded Systems 19/11/2013 Page 11
  12. 12. REQUIREMENT CAPTURE © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Airworthiness regulation: another set of requirements to be cascaded & complied with FAR (US regulations) & CS (European regulations) are requirements, part of the A/C specification. Certification is encompassing process, not only product. Guidance provided (SAE ARP 4754A – EUROCAE ED79A “certification considerations for highly-integrated or complex systems”) Airbus Embedded Systems 19/11/2013 Page 12
  13. 13. REQUIREMENT CAPTURE •Industrial constraints  Systems are expensive components and thus installed as late as possible in A/C assembly process  Any failure at that time disrupts the assembly process and potentially delays the final delivery Wing/ fuselage join-up © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. A 1 PI Production Interval  To Systems equip & test & Cabin Precustomisation Structural Assembly A A B B Tests and adjustments A B A B avoid these delays: – quality of delivered equipment & installation drawings – systems designed for assembly – Design Office support to Assembly line Airbus Embedded Systems A B
  14. 14. REQUIREMENT CAPTURE •Design for Assembly Define integration tests during the system development Reduce these tests duration Insert “hooks” (tests embedded in final software, system to output all key internal data etc) Identify assembly line configuration (A/C jacked, specific power supply, ...) © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Design for Robustness – damages, – foreign objects, ... Airbus Embedded Systems 19/11/2013 Page 14
  15. 15. REQUIREMENT CAPTURE • Addressing environmental topics © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. • Reduction in drag, weight • Environmentally friendly material use • Eco-design • Elimination of hazardous materials in surface technologies (chromate, cadmium...) • Disseminate best environment practices • Re-integration of materials • New recycling possibilities • Support airlines • Modernised air traffic management (SESAR) • Biofuels • Integrating energy consumption as one major parameter Shape technologies to reduce the use of raw materials and waste Airbus: 1st Aircraft Manufacturer awarded ISO 14001 – all sites and products Airbus Embedded Systems 19/11/2013 Page 15
  16. 16. REQUIREMENT CAPTURE •Derived requirements – from design solution •Implicit requirements From “expectations” to “needs” and then “requirements” – Early focus groups with airlines personnel – Prototyping © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. – Route proving / early long flight – Feedback from in-service experience Airbus Embedded Systems Compliance with specification is not sufficient 19/11/2013 Page 16
  17. 17. REQUIREMENT CAPTURE Aircraft Specification AIRCRAFT Design A/C Fct Specification Aircraft function Aircraft function Aircraft function Customer needs capture / allocation Design System Specification SYSTEM SYSTEM SYSTEM © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Design Equipment Specification Equipment Equipment Equipment Equipment Requirement allocation Development Airbus Embedded Systems 19/11/2013 Page 17
  18. 18. REQUIREMENT CAPTURE Are the needs acceptable? Validation of the final product versus customer needs Assumptions © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. validation Requirements validation Airbus Embedded Systems Requirements V&V Verification: Get the assurance that the product is compliant to its specification 19/11/2013 Page 18
  19. 19. © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. REQUIREMENT CAPTURE Some V&V means Airbus Embedded Systems 19/11/2013 Page 19
  20. 20. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 20
  21. 21. SAFETY REQUIREMENTS & SAFETY PROCESS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Partially Systems related Partially prevented By Systems (TAWS, TCAS, Flight Envelope Prot.) Fatal accidents: ≅ 0.5 / 106 departures On FbW A/C ≅ 0.2 (FbW A/C: B777/787, A320/330/340/380) Data from NTSB & Boeing Airbus Embedded Systems 19/11/2013 Page 21
  22. 22. SAFETY REQUIREMENTS & SAFETY PROCESS • « FAILURE CONDITION » DEFINITION FROM CS 25 1309 • A « Failure Condition » is defined at each system level by its effects on the functioning of the system. It is characterised by its effects on the other systems and on the aircraft. All single failures or combination of failures including failures of other systems that have the same effect on the considered system are grouped together in the same « Failure Condition » © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. System boundary Software boundary Failure condition (effect at aircraft level) Latent software error in data or executable code Airbus Embedded Systems Fault System failure Figure from DO178C 19/11/2013 Page 22
  23. 23. SAFETY REQUIREMENTS & SAFETY PROCESS SAFETY SEVERITY CLASSES AND ASSOCIATED OBJECTIVES Classes Objectives at FC level Objectives at Aircraft level CATASTROPHIC < 10-9/hr + Fail Safe criterion < 10-7/hr + Fail Safe criterion HAZARDOUS < 10-7/hr no objective < 10-5/hr no objective no objective no objective © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Assumption of less than 100 Cat. FC MAJOR MINOR Gradation of effort Airbus Embedded Systems Quantitative & qualitative FC: Failure Condition 19/11/2013 Page 23
  24. 24. SAFETY REQUIREMENTS & SAFETY PROCESS Extremely Improbable  No single failure 10-9/FH Development Assurance Level (DO178/ED12, ARP4754/ED79, .. DAL A)  Manufacturing © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.  Particular Risks  Environment (DO160/ED14)  Zonal Safety Assessment  Human Machine Interface (pilot & maintenance) Airbus Embedded Systems 19/11/2013 Page 24
  25. 25. SAFETY REQUIREMENTS & SAFETY PROCESS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Some particular risks Airbus Embedded Systems 19/11/2013 Page 25
  26. 26. SAFETY REQUIREMENTS & SAFETY PROCESS TOP (AIRCRAFT) – Cost requirement s Safety & Reliability method and process A/C constraints Function /Systems allocation matrix - Methods, © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. - In service follow up - S/R Rules and recom. Regulation s y s t e m l i s t Aircraft functions list PSSA 3- System S/R PSSA Requirements document √ requirements √ allocation √ √ √ √ √ √ √ SRD … … Aircraft manufacturer directives BOTTOM - UP PSSA 5- PSSA: Prelim. system Safety PSSA PSSA Assessment FIA: Function Implantation Analysis IHA/ECHA: Intrinsic/Environment hazard Analysis PTS PTS PTS 12Lessons learned 8- COMMON CAUSE ANALYSIS (CCA): 4- System function PSSA list and System FHA 6- Equipment PSSA PSSA S/R Requirements 11Airworthiness monitoring evaluation 2- Aircraft FHA (Functional Hazard Analysis A/C Functions List PROCESS - Processes, Airworthine ss regulation, MMEL 1- S/R Common Data Document DOWN (COMPONENT) - Standards, - Tools, Previous A/C design and “In service” experience Top level requirements document - Research, Guidelines, Top Level Top Level Program Product Requirement Requirement s s - PRA (Particular Risk Analysis) - ZSA (Zonal Safety Analysis) - CMA (Common Mode Analysis) - HHA (Human Hazard Analysis Aircraft in service Aircraft certification 10Aircraft Safety/ Reliabilit y Synthesi s 9b-PSSA SSA PSSA System Safety Assessment and MMEL safety justification 9a- PSSA first flight PSSA 7- Equipment level PSSA Safety/Reliability studies (FMEA/FMES, etc.) A/C Requirements/CRI, Significant Items, Aircraft S/R Reviews System S/R Reviews Interface S/R Activities Multi program, multi disciplinary activities Airbus Embedded Systems Multi system activities on one program System/equipment activities on one program Common Cause activities on one program 19/11/2013 , Multi disciplinary activities Page 26
  27. 27. SAFETY REQUIREMENTS & SAFETY PROCESS Cost requirement s Top Level Top Level Program Product Requirement Requirement s s Safety & Reliability method and process Top level requirements document - Research, LESSONS LEARNED - Processes, Function /Systems allocation matrix - Methods, - Tools, © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. - In service follow up - S/R Rules and recom. Regulation √ s y s t e m l i s t √ √ √ √ √ SRD … √ √ √ Aircraft manufacturer directives 11Airworthiness monitoring 12Lessons learned … 8- COMMON CAUSE ANALYSIS (CCA): PSSA 4- System function PSSA list and System FHA 5- PSSA: Prelim. system Safety PSSA PSSA Assessment FIA: Function Implantation Analysis IHA/ECHA: Intrinsic/Environment hazard Analysis - PRA (Particular Risk Analysis) - ZSA (Zonal Safety Analysis) - CMA (Common Mode Analysis) - HHA (Human Hazard Analysis IN-SERVICE AIRCRAFT 6- Equipment PSSA PSSA S/R Requirements PTS PTS PTS Aircraft in service Aircraft certification 2- Aircraft FHA (Functional Hazard Analysis PSSA 3- System S/R PSSA Requirements document Aircraft functions list Airworthine ss regulation, MMEL 1- S/R Common Data Document A/C Functions List A/C constraints - Standards, Guidelines, Previous A/C design and “In service” experience 10Aircraft Safety/ Reliabilit y Synthesi s 9b-PSSA SSA PSSA System Safety Assessment and MMEL safety justification 9a- PSSA first flight PSSA 7- Equipment level PSSA Safety/Reliability studies (FMEA/FMES, etc.) A/C Requirements/CRI, Significant Items, Aircraft S/R Reviews System S/R Reviews Interface S/R Activities Multi program, multi disciplinary activities Airbus Embedded Systems Multi system activities on one program System/equipment activities on one program Common Cause activities on one program 19/11/2013 , Multi disciplinary activities Page 27
  28. 28. SAFETY REQUIREMENTS & SAFETY PROCESS Cost requirement s Safety & Reliability method and process - - Research, Top Level Top Level Program Product Requirement Requirement s s - Methods, Guidelines, Top level requirements document © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. - In service follow up - S/R Rules and recom. Regulation Aircraft manufacturer directives A/C Functions List A/C constraints Function /Systems allocation matrix s y s t e m l i s t PSSA 3- System S/R PSSA Requirements document Aircraft functions list √ √ √ √ √ SRD … √ √ √ 11Airworthiness monitoring 12Lessons learned … 8- COMMON CAUSE ANALYSIS (CCA): 2- Aircraft FHA (Functional Hazard Analysis PSSA 4- System function PSSA list and System FHA 5- PSSA: Prelim. system Safety PSSA PSSA Assessment FIA: Function Implantation Analysis IHA/ECHA: Intrinsic/Environment hazard Analysis 6- Equipment PSSA PSSA S/R Requirements PTS PTS PTS Aircraft in service Aircraft certification 1- S/R Common Data Document Common Mode Analysis Human Hazard Analysis Particular Risk Analysis Zonal Safety Analysis √ - Tools, Airworthine ss regulation, MMEL COMMON CAUSE ANALYSIS: - Standards, - Processes, Previous A/C design and “In service” experience - PRA (Particular Risk Analysis) - ZSA (Zonal Safety Analysis) - CMA (Common Mode Analysis) - HHA (Human Hazard Analysis 10Aircraft Safety/ Reliabilit y Synthesi s 9b-PSSA SSA PSSA System Safety Assessment and MMEL safety justification 9a- PSSA first flight PSSA 7- Equipment level PSSA Safety/Reliability studies (FMEA/FMES, etc.) A/C Requirements/CRI, Significant Items, Aircraft S/R Reviews System S/R Reviews Interface S/R Activities Multi program, multi disciplinary activities Airbus Embedded Systems Multi system activities on one program System/equipment activities on one program Common Cause activities on one program 19/11/2013 , Multi disciplinary activities Page 28
  29. 29. SAFETY REQUIREMENTS & SAFETY PROCESS Certification major objective is to ensure safety 25.1309, 25.xyz, ARP4754/ED79, DO178/ED12, ED.zyx, … “Business” margins are taken on top of certification requirements Assumptions Operational reliability © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Safety margins are taken too, based on each manufacturer unique history. Confidence in the safety case: meaning of 10-9, what is a single failure, coverage of tests etc.  Not a pure mathematical demonstration  Rigorous analysis with independent checks Airbus Embedded Systems 19/11/2013 Page 29
  30. 30. SAFETY REQUIREMENTS & SAFETY PROCESS coordination with judicial authorities © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. “arrangements with judicial authorities shall respect the independence of the safety investigation authority and allow the technical investigation to be conducted diligently and efficiently.” “all statements taken from persons by the safety investigation authority in the course of the safety investigation shall not be used for purposes other than safety investigation” Airbus Embedded Systems  Mandatory reporting  Regulation regular update  “Just culture” 19/11/2013 Page 30
  31. 31. SAFETY REQUIREMENTS & SAFETY PROCESS Baghdad Nov 2003 - A300 Loss of 3 hydraulic circuits + fire © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.  Outstanding flight crew landed the aircraft using engine thrust to control the flight  Companies are merging  Financial crisis  Governments are changing Airbus Embedded Systems 19/11/2013 Page 31
  32. 32. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 32
  33. 33. INTEGRATION •Proper interfacing and integration Software modules computer/actuator  systems  systems in aircraft  © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.  Aircraft in air traffic  Aircraft in overall society Airbus Embedded Systems 19/11/2013 Page 33
  34. 34. INTEGRATION From airplane to “nuts and bolts” … and back © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Integration in the airplane In air traffic Airbus Embedded Systems 19/11/2013 Page 34
  35. 35. INTEGRATION – Value Engineering A/C fly-away price as link between operator and manufacturer economics A/C fly-away price DMC Maintenance intervals and checks RC primary and resizing reliability (OR) OWE MTOW NRC level and distribution © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. manufactur er trades, exchange rates time-to-market EIS high-speed drag operator SFC landing charges fuel cost flight crew cost Production volume and cadence cost of ownership environmental charges Airbus Embedded Systems 19/11/2013 Page 35
  36. 36. © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. INTEGRATION lighting cold Airbus Embedded Systems EMI hot 19/11/2013 Page 36
  37. 37. INTEGRATION © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Integration in the society Integration in the world economy Airbus Embedded Systems 19/11/2013 Page 37
  38. 38. EADS Vision 2020 © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. INTEGRATION The worldwide leader in air and space platforms and systems Become the worldwide leader in air and space platforms and systems (mainly platform-related systems architecture and integration) with a complete portfolio of products, both commercial and governmental (commercial aircraft, military transport, mission aircraft, helicopters, fighters, UAVs, missiles, launchers, satellites, systems and secure networks). Profitability Achieve best-in-class operational and financial efficiency to reach 10% EBIT in the first half of the decade 2010-2020. Focus on core and optimize financial means Focus on core. This means a new business model approach and the reallocation of human/financial resources which are currently locked in non-core legacy activities. Divestments in non-core areas have to be implemented. Balanced revenues Achieve around €80bn turnover by 2020 and reach a 50/50 balance in Airbus / other Divisions' revenues. Mission-critical service provider to our customers Achieve a 25% services share – against 10% – of business by 2020 (hence €20bn), focusing on high-value services initially related to platforms, requiring and developing both customer intimacy and product intimacy. Globalisation Become a true global industrial company with 40% of EADS sourcing and 20% of EADS employees outside of Europe. Achieve $10bn revenues in North America in non-Airbus businesses and gain a prime position with US Government. Moving towards an eco-efficient enterprise Move towards an eco-efficient company. Environmental issues are to become a transversal driver towards sustainable development. Airbus' ambitious targets are already defined. To be done for non-Airbus Divisions. Airbus Embedded Systems 19/11/2013 Page 38
  39. 39. INTEGRATION Mechanics Aeronautics Automatic control Human-Machine interface Electricity Fluids Design (AI-B612  …) © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Electronics Computer science Internet Dependability Quality English, French, German …, management, ethics, … Production, … intellectual property …, maths, … 19/11/2013 Airbus Embedded Systems Page 39
  40. 40. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 40
  41. 41. TIME ISSUES •Need to make trade-off System weight vs. cost; reliability vs. weight … never safety  System complexity (reliability etc.) vs. overall aircraft weight © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Early 1kg Airbus Embedded Systems ≈ 2kg “snow ball effect” 19/11/2013 Page 41
  42. 42. TIME ISSUES Specify the system Plan the system development Design the system Specify the equipment Develop, Verify the equipment Specify the installation & wiring Integrated processes : Validate, Verify, Safety studies, Maintainability studies, Modifications © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Other supporting processes : Certification coordination, Configuration management, Process Assurance, Reviews, Supplier monitoring… The project, definition: unique process, consisting of • a set of coordinated and controlled activities • with start and finish dates, • undertaken to achieve an objective • conforming to specific requirements, including the constraints of time, cost and resources. Airbus Embedded Systems 19/11/2013 Page 42
  43. 43. TIME ISSUES Type Certification End of studies Flight tests Authorization to offer ATO Integration tests © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Definition freeze Concept freeze Entry into Service Start of Assembly Equipment & Harness Production Start of Production End of ramp-up 5 to 6 years Airbus Embedded Systems 19/11/2013 Page 43
  44. 44. TIME ISSUES Technical challenges Side-stick: •1st test in flight on a modified Concorde in 1978, then an A300 in 1982 •Entry into Service in 1988 Brake To Vacate: •PhD thesis in 1998-2002 © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Research in Airbus 2002-2005 •Development on A380 2006 to 2009 ( 30 Oct. 2009, A380 – MSN 033) “COVAS” law (flexible A/C control) • PhD thesis in 1995 •Entry into Service in 2002 (A340-600) Airbus Embedded Systems 19/11/2013 Page 44
  45. 45. TIME ISSUES Continuous improvement Safety innovation, customer new expectation ... © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. On A380 in 2010 2012 - Flight plan preparation (A/C performance computation) Airbus Embedded Systems TCAS Alert Prevention (TCAP) On all Airbus FbW 2012 - 2013 On A380 in 2010 for the mail, 2012 for the mobile 19/11/2013 Page 45
  46. 46. AIRBUS EMBEDDED SYSTEMS © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. •Aircraft system overview •Requirement capture •Safety requirements & safety process •Integration •Time issues •Concluding remarks Airbus Embedded Systems 19/11/2013 Page 46
  47. 47. AIRBUS EMBEDDED SYSTEMS •Some lessons The system will function if  properly integrated within its environment (other systems, platform, people …)  requirements are correctly integrated (no inconsistency, correct balance between requirements) © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. The system will be successful if  the overall aircraft (at least) is successful (= if optimisation is done at aircraft level)  for the whole development & in-service life of the aircraft  the customer needs are well understood Airbus Embedded Systems 19/11/2013 Page 47
  48. 48. AIRBUS EMBEDDED SYSTEMS Safety is the priority in aviation – flying is safe Nothing is granted Duty for continuous improvement  Need to forecast future threat © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. Continuous need to Look at the global picture (complete airplane, design .. Certification .. In-service, stack of redundancy vs. common point)  Management to be supportive and pro-active  Never compromise on safety & ethics Airbus Embedded Systems 19/11/2013 Page 48
  49. 49. Club Inter-associations Systèmes Embarqués Critiques - CISEC Séminaires, journées d’étude, ateliers … © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. http://asso-cisec.org cisec • Association Aéronautique et Astronautique de France • Société de l’électricité, de l’Electronique et des Technologies de l’information et de la communication • Société des Ingénieurs de l’Automobile Airbus Embedded Systems 19/11/2013 Page 49
  50. 50. © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. THANK YOU THANK YOU – QUESTIONS? CISEC - http://asso-cisec.org Airbus Innovation - www.thefuturebyairbus.com Airbus Embedded Systems 19/11/2013 Page 50
  51. 51. This document and all information contained herein is the sole property of AIRBUS S.A.S. No intellectual property rights are granted by the delivery of this document and the disclosure of its content. This document shall not be reproduced or disclosed to a third party without the express written consent of AIRBUS S.A.S. This document and its content shall not be used for any purpose other than that for which it is supplied. © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. The statements made herein do not constitute an offer. They are based on the mentioned assumptions and are expressed in good faith. Where the supporting grounds for these statements are not shown, AIRBUS S.A.S. will be pleased to explain the basis thereof. Airbus Embedded Systems 19/11/2013 Page 51

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