DOC AIRBUS | AMM A320FENGINE CONTROLS - 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 control.
A. Throttle Control Lever
The throttle control system is fully electrical. The throttle control lever drives the position detectors. The position detectors are located under the cockpit center pedestal. Two of the resolvers are dedicated to the FADEC system. Each channel of the Electronic Control Unit receives the position signal from one resolver in the analog form.
The throttle control system is fully electrical. The throttle control lever drives the position detectors. The position detectors are located under the cockpit center pedestal. Two of the resolvers are dedicated to the FADEC system. Each channel of the Electronic Control Unit 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: it energizes the valve solenoid.
An analog signal informs the EIU of the position of the MASTER control switch.
The EIU transmits then the information to the ECU in digital form.
The ECU uses this information to initiate the automatic and manual engine starting sequences.
The MASTER control switches are part of the panel 115VU, switch replacement requires removal of panel 115VU.
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: it energizes the valve solenoid.
An analog signal informs the EIU of the position of the MASTER control switch.
The EIU transmits then the information to the ECU in digital form.
The ECU uses this information to initiate the automatic and manual engine starting sequences.
The MASTER control switches are part of the panel 115VU, switch replacement requires removal of panel 115VU.
C. LP-Fuel Shut-Off-Valve Control
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 PANELIZONEIACCESS 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 |
| 4000KC SOLENOID-HP FUEL SOV 437 437AL 80-11-20 |
| 447 447AL |
| 8KS1 CTL UNIT-THROTTLE, ENG1 11VU 210 76-11-17 |
| 8KS2 CTL UNIT-THROTTLE, ENG2 11VU 210 76-11-17 |