Document No.: E4.08.09 E4.08.09 : AE_xx_000
Revision: 13 9 : 00
Page: 41 of 89
Copyright © 2019, Austro Engine GmbH
Dept.: Electric/Electronic
8.2.3 Data Logger File (Full Flight Time)
Each AE300-ECU contains non-volatile flash memory storage (called RecMng-Flash) which is
used to store 16 channels of signals. These signals are being sampled at an interval of 1
second as long as the ECU is powered up. Both ECUs perform this task independently of
each other and have their own separate RecMng-Flash memory.
Currently the following signal channels have been defined:
- Boost pressure
- Barometric air pressure (measured inside the EECU enclosure)
- Engine oil pressure
- Rail pressure
- Power lever position
- Coolant temperature
- Intake air temperature
- Battery voltage
- Fuel pressure (measured after the electric fuel pump)
- Gearbox oil temperature
- Engine oil temperature
- Duty cycle of propeller actuator (combined d.c., ranging from -100% to +100%)
- Engine status (combined bit mask, see appendix “12.2.1 Combined Engine Status”)
- Engine oil level
The RecMng-Flash provides space for the 16 channels at a 1s sampling rate for about 90
hours of flight time, depending on the number and duration of flights. It is organized as a
“ring buffer” holding always the most recent flight hours (about 90 hours).
Caution:
Before attempting to download Data Logger data the following criteria have to be
met:
- The aircraft shall be set up to use ground power and the fuel pumps and alternator(s)
shall be disabled as described in chapter “6.3.2 Engine not Running” on page 20,
- Depending on the amount of flight time stored in the RecMng-Flash downloading of the
data logger data can take up to 70 minutes for both ECUs combined,
- The engine must be stopped to perform a Data Logger download.
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