DOC AIRBUS | AMM A320FENGINE CONTROLS - GENERAL - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
1. General
The engine control system consist of:
The engine control system consist of:
- the throttle control
- the HP fuel shut-off valve control
- the LP fuel shut-off valve control
A. Throttle Control Lever
The throttle control system is fully electrical. The throttle control lever drives several position detectors. The position detectors are located under the cockpit center pedestal. Two of them are resolvers dedicated to the FADEC system. Each channel of the Electronic Engine Control receives the position signal from one resolver in the analog form.
The throttle control system is fully electrical. The throttle control lever drives several position detectors. The position detectors are located under the cockpit center pedestal. Two of them are resolvers dedicated to the FADEC system. Each channel of the Electronic Engine Control receives the position signal from one resolver in the analog form.
Throttle Control SystemB. ENG/MASTER Control Switch
The MASTER control switch interfaces with the HP fuel shut off valve and the Engine Interface Unit (EIU).
It controls directly the closure of the fuel shut off valve when it energizes the valve solenoid.
In parallel an analog signal informs the EIU of the position of the MASTER control switch.
The EIU transmits then the information to the EEC in digital form.
The EEC uses this information in addition to the ENG/MODE selector switch position and manual start pushbutton switch to control the starting sequence (Ref. AMM D/O 80-00-00-00).
The MASTER control switch interfaces with the HP fuel shut off valve and the Engine Interface Unit (EIU).
It controls directly the closure of the fuel shut off valve when it energizes the valve solenoid.
In parallel an analog signal informs the EIU of the position of the MASTER control switch.
The EIU transmits then the information to the EEC in digital form.
The EEC uses this information in addition to the ENG/MODE selector switch position and manual start pushbutton switch to control the starting sequence (Ref. AMM D/O 80-00-00-00).
C. LP Fuel Shut-Off Valve Control (Ref.28-24-00)
The LP fuel shut-off valve is electrically controlled:
The LP fuel shut-off valve is electrically controlled:
- either by the ENG/MASTER control switch on the ENG panel
- or by the ENG FIRE pushbutton switch
2. Component Location
| ------------------------------------------------------------------------------- |
| FIN I FUNCTIONAL DESIGNATION I PANEL I ZONE I ACCESS I ATA |
| I I I I DOOR I REF. |
| ------------------------------------------------------------------------------- |
| 2KC CTL SW-ENG/MASTER 2 115VU 210 76-12-00 |
| 3KC CTL SW-ENG/MASTER 1 115VU 210 76-12-00 |
| 8KS1 CTL UNIT-THROTTLE, ENG1 11VU 210 76-11-19 |
| 8KS2 CTL UNIT-THROTTLE, ENG2 11VU 210 76-11-19 |
| - ARTIFICIAL FEEL UNIT 811 76-11-17 |
| - LEVER ASSEMBLY-THROTTLE CONTROL 76-11-41 |