GRIPEN E AVIONICS ARCHITECTURE

Transcription

1 GRIPEN E AVIONICS ARCHITECTURE The Fight against Cost and Complexity Aerospace Technology Congress 2016 Stockholm Pär Hammarström System Architect Gripen E SAAB Aeronautics

2 2 COMPETITIVE ADVANTAGE Conflict, in its most basic form, is a contest between decision making loops. The side with the FASTER and BETTER decision making loop wins any conflict It s all about getting inside the enemy s OODA-loop Short Loop Long Loop

3 3 PACE OF CHANGE ~2x better 1 System Lifetime

4 4 PACE OF CHANGE Calculations per second per $1, One million million million million times faster millions times faster F-15, F-16, F-18 39E, F-35 39A/BC/D

5 5 MOVING AT THE PACE OF CHANGE Pär s first mobile

6 6 MOVING AT THE PACE OF CHANGE Complexity of embedded systems grow with approx 10x every 7th year Jan Bosch Chalmers Pär s first mobile

7 7 BREAKING THE COST CURVE OPERATIONAL EFFECT Cost-efficient products and value for money X- by wire COST OPERATIONAL AND MAINENANCE COST PRODUCTION AND DEVELOPMENT COST

8 8 BREAKING THE COST CURVE OPERATIONAL EFFECT Cost-efficient products and value for money Kilograms as cost driver X- by wire MLoC as cost driver COST OPERATIONAL AND MAINENANCE COST PRODUCTION AND DEVELOPMENT COST

9 THE INVISIBLE MACHINE PUBLIC NOT EXPORT CONTROLLED NOT CLASSIFIED

10 10 MODIFIABILITY AND VARIABILITY The modifiability of a system is the ease with which it can be modified to changes in the environment, requirements or functional specification. Variability is the ability to quickly change in preplanned ways

11 11 DESIGN FOR COMPOSABILITY The modifiability of a system is the ease with which it can be modified to changes in the environment, requirements or functional specification. Module replacement Data controlled Variation Points Variability is the ability to quickly change in preplanned ways

12 12 TIGHT COUPLING

13 VARIABILITY * COUPLING = COMPLEXITY Strategy: Enable composability by decoupling, i.e. each (optional) feature shall be self-contained.

14 14 TIGHT COUPLING

15 MODIFIABILITY * COUPLING = COMPLEXITY Strategy: Enable composability by decoupling, i.e. each (optional) feature shall be self-contained.

16 16 A FOOD ANALOGY

17 17 A FOOD ANALOGY. RUN TIME DESIGN TIME

18 18 EXAMPLE: TIME Time Subscriber Time Device Time Data [Q, Synch_Method] gettime() [AST, UTC, Q] regsource() settime() <ProvideTime> <TimeDeviceDriver> Time

19 19 DEPENDENCY INVERSION & INFORMATION HIDING Time Subscriber Time Logic Time Device <ProvideTime> <TimeDeviceDriver>

20 20 PACKAGING & DEPENDENCY INVERSION Time Logic Time Radar Radar_A <provides> <requires> TACTICAL Time <ProvideTime> <TimeDeviceDriver> BASIC AIRCRAFT INFRASTRUCTURE PLATFORM CROSS-CUTTING CONCERNS

21 21 SERVICE PACKAGE Time Logic Time Radar Radar_A <ProvideService name= ProvideTime > <Service source= Time.60Hz.ProvideTime /> </ProvideService> <RequireService name= ProvideTime > <Service target= Radar_A.60Hz.InputTime /> </RequireService> <Service name= ProvideTime > <Service interface= TimeI.ProvideTime /> </Service> Time <ProvideTime> <TimeDeviceDriver>

22 22 SERVICE LOCATOR Time Logic Time Radar Radar_A <ProvideService name= ProvideTime > <Service source= Time.60Hz.ProvideTime /> </ProvideService> <RequireService name= ProvideTime > <Service target= Radar_A.60Hz.InputTime /> </RequireService> <Service name= ProvideTime > <Service interface= TimeI.ProvideTime /> </Service> Resolver Time <ProvideTime> <TimeDeviceDriver>

23 23 SERVICE GUARANTEED Option A, <ProvideTime> Required Interface AST, UTC, Q Define Q as a Configuration parameter Each Time Device Feature Package has to declare nominal Q and possible ACL dependent Q Each Time subscriber needs to state a minumum Q for guaranteed capability Configuration needs to be choosen wisely Option B, <ProvideTime> Required Interface AST, UTC, Q Service Package declares Q (nominal, envelope, ACL) Time providers (devices) needs to be choosen wisely Radio Link Radar Time Logic GPS Atomic clock Time <ProvideTime> <TimeDeviceDriver>

24 THANK YOU Gripen E Avionics Architecture Pär Hammarström, par.hammarstrom@saabgroup.com