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Control of gas generator
• control of fuel flow
• acceleration and deceleration schedules
• variable bleed valve and variable stator vane schedules
• control of turbine clearance
• idle setting
Protection against engine exceeding limits
• protection against N1 and N2 overspeed
• monitoring of EGT during engine start
Power management
• automatic control of engine thrust rating
• computation of thrust parameter limits
• manual management of power as a function of thrust lever position
• automatic management of power (A/THR demand).
Automatic engine starting sequence
• control of :
‐ the start valve (ON/OFF)
‐ the HP fuel valve
‐ the fuel flow
‐ the ignition (ON/OFF)
• monitoring of N1, N2, FF and EGT
• initiation of abort and recycle (on the ground only)
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
FADEC
A318/A319/A320/A321 FLEET DSC-70-20 P 4/8
FCOM 19 AUG 10
Manual engine starting sequence
• passive monitoring of engine
• control of :
‐ the start valve
‐ the HP fuel valve
‐ the ignition
Thrust reverser control
• Actuation of the blocker doors
• Engine setting during reverser operation
Fuel recirculation control
• Recirculation of fuel to the fuel tanks, depending on the engine oil temperature, the fuel system
configuration, and the flight phase.
Transmission of engine parameters and engine monitoring information to cockpit
indicators
• Primary engine parameters
• Starting system status
• Thrust reverser system status
• FADEC system status
Detection, isolation, and recording of failures
FADEC cooling
Protection against fan flutter
• When on ground at low speed (less than or equal to 0.1 nm), the Electronic Engine Computer
(EEC) protects against fan flutter. In so doing, the EEC prevents the engine from being
stabilized between an approximate range of 60 % to 74 % N1 (depending on the outside air
temperature). Therefore, during engine acceleration on ground, the pilot may notice a non-linear
thrust response to thrust lever movement.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
FADEC
A318/A319/A320/A321 FLEET DSC-70-20 P 5/8
FCOM 19 AUG 10
POWER SUPPLY
Applicable to:
, ,
MSN
The FADEC system is self-powered above 15 % N2.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
FADEC
A318/A319/A320/A321 FLEET DSC-70-20 P 6/8
FCOM 19 AUG 10
FADEC POWER SUPPLY
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
FADEC
A318/A319/A320/A321 FLEET DSC-70-20 P 7/8
FCOM 19 AUG 10
POWER SUPPLY
Applicable to: MSN
4566,,,
The FADEC system is self-powered above 10 % N2.
In case of a FADEC self-power loss, the aircraft electrical network automatically supplies the FADEC.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
FADEC
A318/A319/A320/A321 FLEET DSC-70-20 P 8/8
FCOM 19 AUG 10
FADEC POWER SUPPLY
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
THRUST CONTROL SYSTEM (CFM+PW) - GENERAL
A318/A319/A320/A321 FLEET DSC-70-30-10 P 1/2
FCOM 19 AUG 10
GENERAL
Applicable to:
, ,
MSN
A FADEC dedicated to each engine controls thrust.
The pilot uses the thrust levers to set the thrust in manual mode, and the FMGS sets the thrust in
automatic mode.
The FADEC prevents the thrust from exceeding the limit for the thrust lever position in both manual
and automatic modes.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
THRUST CONTROL SYSTEM (CFM+PW) - GENERAL
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-70-30-10 P 2/2
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
POWER PLANT
THRUST CONTROL SYSTEM (CFM+PW) - THRUST LEVERS
A318/A319/A320/A321 FLEET DSC-70-30-20 P 1/2
FCOM 19 AUG 10
THRUST LEVERS
Applicable to:
, ,
MSN
The thrust levers can only be moved manually.
They move over a sector that is divided into four operating segments.
The sector has five positions defined by detents or stops.
Thrust lever position is transmitted to the FADEC, which computes and displays the thrust rating limit
　
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