mirror of https://github.com/ArduPilot/ardupilot
92 lines
3.2 KiB
Markdown
92 lines
3.2 KiB
Markdown
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# EFI SkyPower Driver
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This driver implements support for the SkyPower range of EFI engine
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control units. It supports monitoring and control of SkyPower engines.
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# Parameters
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The script used the following parameters:
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## EFI_SP_ENABLE
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this must be set to 1 to enable the driver
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## EFI_SP_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_SP_UPDATE_HZ
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This sets the update rate of the script in Hz (how often it checks for
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new data from the ECU). A value of 200 is reasonable.
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## EFI_SP_THR_FN
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This sets the SERVOn_FUNCTION number to monitor for throttle
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command. For fixed wing forward throttle this should be set to 70. For
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heli RSC control this should be set to 31. If set to zero then no
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throttle control will be done by the driver.
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## EFI_SPI_THR_RATE
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This is the throttle output rate in Hz. A value of zero will disable
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throttle control. A typical rate would be 50Hz.
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## EFI_SP_START_FN
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This is the RC option to use to monitor start control. This should be
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set to one of the scripting RC options (from 300 to 307). Then an
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RCn_OPTION should be set to the same value. When this switch goes high
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the engine start function will be sent to the ECU. When this switch
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goes low a engine stop will be sent. A value of 0 disables the starter
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control.
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## EFI_SP_GEN_FN
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This is the RC option (auxiliary function) to use for generator
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control. This should be set to one of the scripting RC options (from
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300 to 307) if generator control is needed. Then an RCn_OPTION should
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be set to the same value. When this switch goes high the generator
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start function will be sent to the ECU. When this switch goes low a
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generator stop will be sent. A value of 0 disables the generator
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control.
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## EFI_SP_MIN_RPM
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This is the minimum running RPM. When set to a positive value then the
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driver will monitor engine RPM when the engine is started and if it
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drops below this value then an engine start will be sent to restart
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the engine.
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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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then the flight controller should rebooted and parameters should be
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refreshed.
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Once loaded the EFI_SP parameters will appear and should be set
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according to the parameter list above.
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A 2 position RC switch should be setup with RCn_OPTION=300 (or the
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value of EFI_SP_START_FN) to enable starter control. When that switch
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goes high the engine will be started. When it goes low the engine will
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be stopped.
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The GCS will receive EFI_STATUS MAVLink messages which includes RPM,
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cylinder head temperature, exhaust gas temperature, injection timing,
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engine load, fuel consumption rate, throttle position atmospheric
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pressure and ignition voltage.
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Setting EFI_SP_RPM_MIN allows for automatic in-flight engine
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restart. If the engine RPM drops below this EFI_SP_RPM_MIN for 2
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seconds while the engine should be started then an engine start
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command will be sent to restart the engine.
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