New Avionics Concepts: Yves Saint-Upery Eyak Cockpit Operations
New Avionics Concepts: Yves Saint-Upery Eyak Cockpit Operations
New Avionics Concepts: Yves Saint-Upery Eyak Cockpit Operations
Yves SAINT-UPERY
EYAK
Cockpit Operations
yves.saint-upery@airbus.com
Analog Electronics
PHOTO
Digital Electronics in specific
cases (INS 4Kbytes)
Highly integrated or
distributed digital
electronics :
20 Mbytes
250 Mips
- DEPENDABILITY / CRITICALITY
-> availability : occurrence number / reliability
-> integrity : - functions segregation (ex : Navigation et Surveillance,..)
- command / monitor architecture (ex : AP,...)
- hardware / software dissimilarity (ex : EFCS,...)
- deterministic operation (e.g. : all critical functions)
- COST OF OWNERSHIP
-> hardware and software development costs : common elements targeted, software
portability, family policy, … and of course efficient methods and tools
-> maintainability : efficient failure detection (low rate of unjustified removals),
reliability, repair cost
-> upgradeability : safe introduction of modifications (right first time) at reduced
cost
(single
1 Auto throttle)
N1 limit 1
Auto thrt
2
Test computer
A310/A300-600
4 (10)
Pitch trim
In each equipment :
- Power supply
- Inputs/outputs
- Processor
- Software
NEW AVIONICS (LRM)
n
ctio
Function A IOs Fun
- Inputs/Outputs (Functions A, B, C)
n C
Function B IOs ctio
Fun - Inter-equipment Bus
Function C IOs B
A
Processing
modules I/O modules
Power supply
Functions A, B, C
Design concepts :
- fault tolerance :
-> differed maintenance objective
- resources sharing : "robust partitioning"
-> independent certification of implemented functions
- software/hardware independence : standard interface between
operating system and applicative softwares :
-> software portability
- fast downloading
-> software update onboard the aircraft
- “high throughput” communication networks:
System A
actuators
System B
sensors
System A
Integrated
Avionics
actuators
System B
sensors
Application n
Application 1
Software
API Services API
API
O/S
O/S
Modules Boards
Hardware
Backplane Bus
System Busses
Avionic Busses
Communication Busses
Cabinet Avionic Remote „Smart“
Computing Data Sensor/
Resource Concentrator Effector
post graduate course in satellite CNS 16
Typical IMA Cabinet Platform
- COTS components as microprocessors, memories and data bus chips are low
cost and there are different interoperable sources
-> benefits for the aerospace industry to use COTS components but special
attention to be paid to environmental conditions compatibility and life duration
3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
9 8 7 6 5 4 3 2 1
2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
• Bits 1-8 : label, 9-10 : SDI, 11-29 : data, 30-31 : SSM, 32 : parity
• multiplexed bus B
• no bus master
• serial bus C
• 2 Mbits/s
• messages made of up to 256 wordstrings D
• 20 bits words
Message with 2 wordstring
- Future : Ethernet
• multi-drop bus
• serial bus
• 10 or 100 Mbits/s switch
• no operating system
• simple schedulers
LRU A
Application A
LRU B
Application B
«traditional» avionics
display RDC’s
• Resource sharing
• New dependencies
between systems
• Applications spread
Multi-transmitter over resources
sensors bus network
Platform Integrator
Airframer(s)
• Technologies :
• Arinc 650 packaging
• Arinc 659 backplane bus : 2 * 30 Mbits/s
• Dual lock step processing module
• Arinc 629 avionics bus : 2 Mbits/s
A: AIRBUS : Avionics solution for all the AIRBUS aircraft, forward and
retrofit conditions
The objectives :
-> improved cost of ownership of the system
1988 2002
Current Family
A320 A340 A330 A321 A319 A340-500/600
Next Family
New Technologies :
- engines
- structure
A380
- systems (electricity,
hydraulics, AVIONICS)
Common
Cabin
Consoles
Router W/l LAN High Speed Network( Ethernet)
includes Firewall protection for open part
Cockpit
Systems panels
Information
Cabin Energy Cabin Cabin Cabin Cabin
Management Utility Systems Other
& Management
Functions Functions Functions LRU’s
Functions