-remove external init, and instead always (but only) init when dt is too large
-init the controller params correctly
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
* created a Performance Model for fixed wing vehicle
- added compensation for maximum climbrate, minimum sinkrate, minimum airspeed and trim airspeed based on weight ratio and air density
- added atmosphere lib to standard atmosphere calculations
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Signed-off-by: RomanBapst <bapstroman@gmail.com>
Co-authored-by: Thomas Stastny <thomas.stastny@auterion.com>
- if the height rate input into TECS is finite, use that one to
update a velocity reference generator
- if the velocity reference generator reports position locked or
height rate input is not finite, then run altidue reference generator
- run altitude controller only if altitue is controlled
if height_rate_setpoint is set, only use that one to update altitdue trajectory
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
* FWPositionController: add linear airspeed-to-trim-throttle mapping
Scale trim throttle in a linear way with airspeed.
Different gradients above/below trim airspeed.
The airspeed- and airs density-corrected trim throttle is required for an accurate
throttle prediction in TECS, while the default trim throttle is still needed
as well, as the throttle delta from height rate setpoint delta is linked to it.
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Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
- underspeed condition only determined by true airspeed undershoot
- change binary underspeed condition to a continuous percent undersped
- ramp-in max throttle, pitch speed weight, and TAS setpoint reduction during underspeed to avoid jumpy commands at the true airspeed error boundary
- let true airspeed filter reach zero airspeed
- create integral and trajectory generator reset methods
- always run TECS unless in rotary-wing mode (or in transition)
- constantly reset TECS integrals and trajectory generators when landed
- added ability to specify maximum acceleration constraint for height rate setpoint
- added support for locking altitude setpoint when in height rate control
mode and height rate input is zero
Signed-off-by: RomanBapst <bapstroman@gmail.com>
- avoids tecs always climbing and sinking and max rates and allows to fine tune these rates
- avoid numerical calculation of feedforward velocity using derivative, this
was prone to jitter in dt
Signed-off-by: RomanBapst <bapstroman@gmail.com>
In airspeed-less mode, instead of the average of min/max airspeed, take the cruise
airspeed (from param) for current airspeed estimate. A diff of the airspeed setpoint
from this value results in increased enegery demand (incerase of throttle) even
in airspeed-less mode.
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
