Commit Graph

85 Commits

Author SHA1 Message Date
Matthias Grob f2bca92221 Fix duplicate newlines at the end of files 2024-07-19 14:33:36 +02:00
KonradRudin 59b96f4968 tecs: fast descend: do not shut down throttle while still climbing (#23397) 2024-07-15 10:42:43 +02:00
Konrad 6984e6da7f TECS:use tas_setpoint instead of measured tas for specific kinetic energy calculation 2024-05-07 14:20:07 +02:00
Konrad f56f4c7033 TECS: enable specific energy weights to have a value up to 2 2024-05-07 14:20:07 +02:00
Konrad f8a20e1964 TECS: increase airspeed control limit for fast descend 2024-05-07 14:20:07 +02:00
Konrad 6a789b54c6 TECS: allow for fast descend up to maximum airspeed. Use pitch control loop to control max airspeed while giving minimal throttle. 2024-05-07 14:20:07 +02:00
Silvan Fuhrer 05672f343d TECS: check if integrator update is finit prior applying
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2024-04-11 10:42:59 +02:00
Silvan Fuhrer 91ab09ebd5 TECS: in _calcPitchControlOutput guard against invalid airspeed inputs
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-12-12 15:16:38 +01:00
Silvan Fuhrer 9db86f7f0a TECS: fix airspeed filter init in airspeed-less mode
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-12-12 15:16:38 +01:00
Silvan Fuhrer 60e2c6a5cb TECS: improve initialization
-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>
2023-12-12 15:16:38 +01:00
Silvan Fuhrer 1f5fc3e849 TECS: init control params to reasonable values
The control params (eg min/max pitch) are used before they are
correctly set by TECS::update(). While this is an issue we should fix,
it also doesn't hurt to set them to more reasobale values (eg 30° limit).

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-12-12 15:16:38 +01:00
Silvan Fuhrer 7926107328 TECS: make sure to constrain pitch to current min/max pitch
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-12-12 15:16:38 +01:00
Silvan Fuhrer cc743048ba TECS: set _ratio_underspeed to 0 if airspeed disabled
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-12-12 15:16:38 +01:00
Roman Bapst dd2322d622 Added PerformanceModel for fixed wing (#22091)
* 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


---------

Signed-off-by: RomanBapst <bapstroman@gmail.com>
Co-authored-by: Thomas Stastny <thomas.stastny@auterion.com>
2023-11-21 17:13:50 +01:00
Silvan Fuhrer a47b684fd7 tecs_status.msg: directly add underspeed ratio to msg instead of boolean
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-11-07 12:18:06 -05:00
Silvan Fuhrer 8741a9784d TECS: remove TECS_MODE enum and instead add descriptive boolean flag to tecs_status
New flag: underspeed_mode_enabled.

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-11-07 12:18:06 -05:00
Silvan Fuhrer a6fcf7b48c TECS: remove airspeed adaption in case of underspeed
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-11-07 12:18:06 -05:00
Thomas Stastny def4ce6ba8 FixedwingPositionControl: slightly simplify manual position control (use navigateLine() to be sure no turnaround)
make notes on odd things that are likely still wrong
2023-09-08 16:08:38 +02:00
Silvan Fuhrer 77d09785f3 TECS: init _velocity_control_traj_generator properly
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-05-15 13:53:32 +02:00
Silvan Fuhrer 8f520ab019 tecs: fix throttle prediction (#21444)
* tecs: fix throttle prediction

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>

---------

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
Co-authored-by: Thomas Stastny <thomas.stastny@auterion.com>
2023-04-06 20:13:32 +02:00
Silvan Fuhrer 460956fd33 TECS: revert altitude controller to old logic
- 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>
2023-04-06 20:12:52 +02:00
Silvan Fuhrer 60cd20c19c TECS: make more readable
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-04-06 20:12:52 +02:00
Silvan Fuhrer 2d01cf63ce TECS: rename _reference_model to _altitude_reference_model
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-04-06 20:12:52 +02:00
Silvan Fuhrer beeae1f673 TECS: rename TECSReferenceModel to TECSAltitudeReferenceModel
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-04-06 20:12:52 +02:00
Silvan Fuhrer 1f5046f165 FWPositionControl: trim throttle prediction improvements (#21345)
* 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.

---------

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-04-06 11:56:54 +02:00
Silvan Fuhrer 28db47480d TECS: remove ununsed getSteRate()
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-03-16 16:58:08 +01:00
Silvan Fuhrer 76116d79f9 TECS: remove umcommanded_descent flag
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-03-01 10:39:09 +01:00
Silvan Fuhrer 527225357b TECS: remove unused TECS_MODE_CLIMBOUT
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-03-01 10:39:09 +01:00
Silvan Fuhrer 837095b9a8 tecs: use FW_T_SINK_MIN for STE_rate_min (#21190)
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-02-24 15:46:41 +01:00
Silvan Fuhrer 88ec117e59 TECS: rename tecs_status.altitude_filtered to altitude_sp_ref
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-01-26 17:04:43 +01:00
Silvan Fuhrer 5099a91f87 TECS: keep _pitch_integ_state in radians
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-01-26 17:04:43 +01:00
Silvan Fuhrer e16f98c2b6 FW Position controller: remove unused climbout arguments
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2023-01-26 17:04:43 +01:00
KonradRudin d3b7112dd9 [TECS]: If in airspeedless mode, add the throttle integrator term to the throttle setpoint, if the integrator term is positive. This should avoid reducing airspeed when switching to airspeedless mode. (#20987) 2023-01-25 09:16:11 +01:00
Konrad f5524fa605 TECS: Combine both airspeed and airspeed derivative filters in TECS into one MIMO filter using a steady state Kalman filter. 2022-12-21 09:04:19 +01:00
Konrad 08c36612b3 TECS: Updated throttle control for airspeed sensorless vehicles. It includes the P gain controller instead of feedforward only. I term is still disabled. 2022-12-21 09:04:19 +01:00
Konrad 77539d4dac TECS: Rearrange setpoint input. If an altitude rate is given, use this as a feedforward term in the altitude control. If an altitude setpoint is given use a reference model to get a smooth altitude setpoint. 2022-12-21 09:04:19 +01:00
Konrad 8c6dfc840b TECS: Fix bug to reset airspeed derivative and energy rate low pass filters at every time step. 2022-12-21 09:04:19 +01:00
Konrad 7a3e0f53c2 TECS: Replaced old tecs by cleaned up version. 2022-12-21 09:04:19 +01:00
Konrad 991689d3cd TECS: Add new tecs library in parallel to old tecs in the position control library for comparison. 2022-12-21 09:04:19 +01:00
Konrad c64e111d8e TECS: Rearranged the TECS library into submodules. 2022-12-21 09:04:19 +01:00
Silvan Fuhrer d8e483ae20 TECS: guard against NAN airspeed setpoints
Signed-off-by: Silvan Fuhrer <silvan@auterion.com>
2022-10-21 09:51:38 +02:00
Thomas Stastny a12e40b1d8 tecs: convert tas error and soft bounds to percentage of trim airspeed 2022-07-18 10:49:27 -04:00
Thomas Stastny 1782f9cd3e tecs: zero guard ste rates and airspeed setpoint rates 2022-07-18 10:49:27 -04:00
Thomas Stastny 73010cc69b TECS: speed (only) -based underspeed detection
- 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
2022-07-18 10:49:27 -04:00
Thomas Stastny eed073887d remove in air vs landed knowledge from TECS
- 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
2022-07-18 10:49:27 -04:00
RomanBapst 92cdff6798 TECS: rename airspeed/throttle "cruise" to "trim"
Signed-off-by: RomanBapst <bapstroman@gmail.com>
2022-07-12 09:07:20 +02:00
RomanBapst b57d3c6d74 TECS: set true airspeed rate setpoint to zero if airspeed is not enabled
Signed-off-by: RomanBapst <bapstroman@gmail.com>
2022-07-12 09:07:20 +02:00
RomanBapst 6dbea21ef5 TECS: renamed airspeed cruse to airspeed trim & general cleanup
Signed-off-by: RomanBapst <bapstroman@gmail.com>
2022-07-12 09:07:20 +02:00
Beat Küng 4ba84d56c9 logger: introduce optional topics
The current practice of adding topics to the default set isn't scalable,
as it affects all setups.
By making sure topics are advertised on init, logger can just discard
topics that don't exist. This does not work for all topics, so topics are
specifically marked as optional. It can be extended to more topics later
on though.

This reduces the list of topics by ~35 on a pixracer configured as quad,
and reduces RAM usage by ~1KB.
2021-11-15 09:02:03 -05:00
RomanBapst 56cf77a74c addressed review comments
Signed-off-by: RomanBapst <bapstroman@gmail.com>
2021-11-05 18:04:33 +01:00