mirror of https://github.com/ArduPilot/ardupilot
66 lines
1.9 KiB
Markdown
66 lines
1.9 KiB
Markdown
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# EFI HFE Driver
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This driver implements support for the HFE International range of EFI
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CAN engine control units. It supports monitoring and control of HFE
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engines on fixed wing aircraft. This driver assumes you are using the
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ICE subsystem in fixed wing aircraft for engine control.
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# Parameters
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The script used the following parameters:
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## EFI_HFE_ENABLE
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this must be set to 1 to enable the driver
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## EFI_HFE_CANDRV
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This sets the CAN scripting driver number to attach to. This is
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normally set to 1 to use a CAN driver with CAN_Dx_PROTOCOL=10. To use
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the 2nd scripting CAN driver set this to 2 and set CAN_Dx_PROTOCOL=12.
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## EFI_HFE_ECU_IDX
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This sets the ECU number on the CAN bus. A value of zero means that
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the ECU number is auto-detected based on the first ECU seen on the
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bus.
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## EFI_HFE_RATE_HZ
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This sets the update rate of the driver. A value of 200 is reasonable
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## EFI_HFE_FUEL_DTY
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This sets the fuel density in grams per litre, for fuel consumption
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calculations
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## EFI_HFE_REL_IDX
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This sets a relay number to use for the ECU enable function. if the
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ECU requires a high voltage GPIO to enable then you should set a
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RELAY_PIN that the ECU enable is attached to and set the relay number
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here.
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# Operation
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This driver should be loaded by placing the lua script in the
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APM/SCRIPTS directory on the microSD card, which can be done either
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directly or via MAVFTP. The following key parameters should be set:
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- SCR_ENABLE should be set to 1
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- EFI_TYPE should be set to 7
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- ICE_ENABLE should be set to 1
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then the flight controller should rebooted and parameters should be
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refreshed.
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Once loaded the EFI_HFE parameters will appear and should be set
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according to the parameter list above.
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The ICE start channel will be monitored for starter control.
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The GCS will receive EFI_STATUS MAVLink messages which includes RPM,
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cylinder head temperature, injection timing, engine load, fuel
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consumption rate, throttle position atmospheric pressure and ECU
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voltage.
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