third generation digital liquid management system

THIRD GENERATION DIGITAL LIQUID MANAGEMENT SYSTEM
(DISTRIBUTED CONTROL SYSTEM FOR FUEL MANAGEMENT)
prepared by
Jörn Unteutsch
Axel Kiens
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
1
Brno University of Technology
This project is partly funded within the 5th
framework programme by the
European Commission
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
2
An European Project
Research partners from 6 european countries
Airframer / System House:
Eurocopter (D)
Airbus (GB)
Universities:
Complutense Madrid (E)
Alcalá (E), Brno (CZ)
Fuel Components and Systems Manufacturer:
Autoflug (D), Secondo Mona (I) Goodrich (F), ASG (D)
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
3
SmartFuel, a Distributed Control System For Fuel Management
•
Valve
Valve
Fuel
Fuel
M
anagem
Management
ent
Com
puter
Computer
Sensor
Sensor
Pum
Pumpp Sensor
Sensor
Main Project Target:
–
From the conventional solution:
• Central Computer
• Point-to-Point Connections
–
To a new distributed solution:
• CANbus
• No Central Computer
• Smart Components
–
Advantages:
• Less wiring, less weigth
• Improved maintenanability
• Extended functionality
CANbus
node
node
node
node
20th June 2006
node
node
node
node node
node
© copyright 2006 by AUTOFLUG GmbH
4
Fuel Management System (FMS)
•
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
Components
– Sensors
– Valves
– Pumps
– Controllers
– Cockpit Fuel Panels
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Fuel Management System
•
Typical FMS Functions for
Fixed Wing Aircraft :
–
–
–
–
–
20th June 2006
Pressure Refueling
Engine Supply
Trimming, Balancing
Centre of Gravity (COG) Management
Wing Bending
© copyright 2006 by AUTOFLUG GmbH
6
Fuel Management System
•
Typical FMS Functions for
Rotary Winged Aircraft :
–
–
–
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
Pressure Refueling
Engine Supply
Balancing
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Typical Helicopter FMS Architecture
Balance pump &
valve
Front Tank
Left
Tank
Engine
Supply
Right
Tank
Engine
Supply
Refueling
inlet
Legend
BP - Balance Pump
BV - Balance valve
FGT- Fuel Gauge Transmitter
FMC- Fuel Management Controller
HLS - High Level Sensor
LLS - Low Level Sensor
RV - Refueling Valve
SP - Supply Pump
Rear Tank
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
8
Smart Components
Sensor or Actuator
(with internal electronics)
Internal
Interface
Micro-Controller
•
Mechatronics:
–
–
–
–
Transducers and mechanics
Embedded electronics
Digital processing
Added functionality:
• Built-in-Test
• Self-calibration
• Maintenance data (History)
CANbus
interface
CANbus
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
9
Distributed Control Concept
System
Mode 2
1
0
Valve 1
closed
Pump 7
running
0
0
0
Valve 11
fails
1
1
0
If system mode = 2
and Valve 1 = closed
Valve 3
closed
open
Valve 3
•
Statemachine
– Each smart component reacts in
accordance with local automata
– State-vector broadcasting
– When a component, reading the state
vector, decides an action,
it notifies this new event changing
pertinent bits in the state-vector
closed
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
10
Smart Components For Helicopter Full Scale Fuel Test Rig
Provision of smart valves.
Provision of smart pumps (AC and DC).
Provision of smart sensors.
• 2 supply pumps
• 1 balance pump
• 2 refuel valves
• 1 balance valve
• 6 fuel gauge transmitters
• 2 level sensors (high and low)
• 1 fuel compensator
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
11
Simulation Support for the Project
Viability studies of
new concepts
Checking of
operational scenarios
SW/HW
development &
testing
Bus messages
monitoring
Validation
Fault analysis
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
12
Laboratory Simulators (downscaled test rig)
•
Fixed Wing Aircraft
Gravity
transfers
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
13
Laboratory Simulators (downscaled test rig )
•
Helicopter
Physical
tank simulation
Electronic
modules
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
14
Industrial Rig (Helicopter full scale fuel test rig )
20th June 2006
© copyright 2006 by AUTOFLUG GmbH
15
SmartFuel Automated Design and Simulation Process (ADSP)
•
•
•
•
•
20th June 2006
SmartFuel ADSP is the SmartFuel Follow Up programme
This project is candidate for partly funding within the 6th framework programme by the
European Commission
ADSP researches a tool-supported automated design and verification process for
digital fuel systems
Planned Duration: 4th quarter 2006 until 3rd quarter 2009
Partner Companies:
– Autoflug GmbH
– ASG-Luftfahrttechnik und Sensorik GmbH
– Eurocopter Deutschland GmbH
– Secondo Mona Spa
– Goodrich Actuation Systems SAS
– Vysoke Uceni Technicke v Brne
– Universidad Complutense de Madrid
– University of Alcala
– Czech Space Research Centre
– Piaggio Aero Industries Spa
© copyright 2006 by AUTOFLUG GmbH
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