* ZMO airframe: update parameters
Including some parameters we found useful during the tests over the
previous months:
- various controller & transition tuning refinements
- remove battery capacity (not reliable enough w battery degradation)
- airspeed scale
- rotor configs:
- remove everything related to rotors 3 and 4 (which don't exist)
- set moment coefficients explicitly even if at default
- Increase roll limit (FW_R_LIM, FD_FAIL_R)
- min and max airspeeds
- tilt servo min and default PWM values
* ZMO airframe: address review
- explicitly set CA_ROTOR3_* to 0 (as these are set in the parent
13100 which describes a quadrotor)
- remove ASPD_SCALE_1 (close enough to default, and better to have
slightly low reading)
- remove MPC_ACC_HOR_MAX (= default)
- remove MPC_TILTMAX_AIR (was temporary)
- remove SENS_EN_SF1XX (= default)
* ZMO airframe: update tilt setup
to describe a setup where tilt servos can provide yaw torque in both
directions in multicopter mode.
* ZMO airframe: wording
* Docs: add moving platform
documenting the addition in #24471
* Moving platform docs: address review
- Release note, write release in docs
- Describe configuration also in main gazebo sim docs, syntax section
- Tip that plugin can be used in other worlds, linking to plugin readme
* Update docs/en/sim_gazebo_gz/index.md
Co-authored-by: Hamish Willee <hamishwillee@gmail.com>
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Co-authored-by: Hamish Willee <hamishwillee@gmail.com>
* gz_plugins: add MovingPlatformController
This plugin moves the entity to which it is attached to simulate moving
platforms (boats, trucks, ...) to takeoff and land on. Updates
Tools/simulation/gz submodule with corresponding dependency. Use with:
PX4_GZ_MODEL_POSE=0,0,2.2,0,0,0 PX4_GZ_WORLD=moving_platform make px4_sitl gz_standard_vtol
more in README.md
* MovingPlatformController: Wrench implementation
Now it works by applying appropriate forces & torques to make the
platform move as desired. Compared to the previous velocity-based
version it introduces no kinematic constraints, keeping it realistic.
Other updates:
- Also make heading configurable by env var in addition to velocity
- Cleaner error handling (runtime error, gzerr, gzwarn)
- Read parameters (gravity, platform mass & height) from model rather than hardcoding
- Update README with new env vars, usage in sdf, etc.
* MovingPlatformController: fix warning message
* MovingPlatformController: fix build
https://github.com/PX4/PX4-Autopilot/pull/24518 changed some variable
names in CMakeLists. This adapts ours to use the new ones.
* MovingPlatformController: format
* MovingPlatformController: address code review
From feedback on PR
- Parameterise low pass filters with cutoff frequency (rather than
filter coefficient directly).
- Add comment with units of feedback gains.
- Scale attitude gains with platform inertia (rather than mass).
Additionally
- Wait 5 seconds before moving the platform so the model has time to
spawn (was quicker before rebasing...)
- Refactor: separate noise generation and force/torque calculation into
two separate functions
- rename updatePlatformState -> getPlatformState to emphasise
difference from other update* functions that update internal state only
- remove unused gz transport node
- README grammar
* MovingPlatformController: format
* MovingPlatformController: remove redundant call
* MovingPlatformController: clarify explanation
* MovingPlatformController: clarify & comment units
* MovingPlatformController: wait for model to spawn
Rather than waiting a fixed 5s, we now only move the platform once the
model is spawned.
For that we construct the model name from the relevant environment
variables, in the same way as done in px4-rc.gzsim.
If attaching to an existing model, do not wait.
* MovingPlatformController: correct substring extraction
---------
Co-authored-by: Jacob Dahl <37091262+dakejahl@users.noreply.github.com>
* fix sign error in appropriate place
In PR https://github.com/PX4/PX4-Autopilot/pull/24175 I changed the
control surface deflection signs in generate_fw_aerodynamics to make the
1103 airframe work correctly. However, this breaks the 1101 airframe,
introducing sing errors there.
So, here the change in generate_fw_aerodynamics is reverted to the state
before PR #24175. Instead, the signs are set correctly by using
the HIL_ACT_REV bitfield in the respective airframe config files.
* match control surface parameters to SIH model
* add standard vtol airframe to SIH.
mostly took changes from 4d930bde and applied to main.
generate_fw_aerodynamics now takes four arguments rather than using the
_u class member, because depending on vehicle type _u is used
differently.
Balduin