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FW auto launch: Add option to lock selected surfaces before/during launch (#25799)

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* FWModeManager: add option to set flag for disabling actuators during launch

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

* Allocation: add option to each control surface to be locked for launch

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

* FW rate control: reset integral while control surfaces are locked

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

---------

Signed-off-by: Silvan <silvan@auterion.com>
Co-authored-by: mahima-yoga <mahima@auterion.com>
This commit is contained in:
Silvan Fuhrer
2026-02-17 09:26:38 +01:00
committed by GitHub
parent fd4b958790
commit 11007dc893
12 changed files with 105 additions and 4 deletions
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5
docs/en/flight_modes_fw/takeoff.md
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@@ -85,6 +85,7 @@ The vehicle always respects normal FW max/min throttle settings during takeoff (
In _catapult/hand-launch mode_ the vehicle waits to detect launch (based on acceleration trigger).
On launch it enables the motor(s) and climbs with the maximum climb rate [FW_T_CLMB_MAX](#FW_T_CLMB_MAX) while keeping the pitch setpoint above [FW_TKO_PITCH_MIN](#FW_TKO_PITCH_MIN).
Once it reaches [MIS_TAKEOFF_ALT](#MIS_TAKEOFF_ALT) it will automatically switch to [Hold mode](../flight_modes_fw/hold.md) and loiter.
It is possible to delay the activation of the motors and control surfaces separately, see parameters [FW_LAUN_MOT_DEL](#FW_LAUN_MOT_DEL), [FW_LAUN_CS_LK_DY](#FW_LAUN_CS_LK_DY) and [CA_CS_LAUN_LK](#CA_CS_LAUN_LK). The later is also exposed in the actuator configuration page under the advanced view.
All RC stick movement is ignored during the full takeoff sequence.
@@ -104,7 +105,9 @@ The _launch detector_ is affected by the following parameters:
| <a id="FW_LAUN_DETCN_ON"></a>[FW_LAUN_DETCN_ON](../advanced_config/parameter_reference.md#FW_LAUN_DETCN_ON) | Enable automatic launch detection. If disabled motors spin up on arming already |
| <a id="FW_LAUN_AC_THLD"></a>[FW_LAUN_AC_THLD](../advanced_config/parameter_reference.md#FW_LAUN_AC_THLD) | Acceleration threshold (acceleration in body-forward direction must be above this value) |
| <a id="FW_LAUN_AC_T"></a>[FW_LAUN_AC_T](../advanced_config/parameter_reference.md#FW_LAUN_AC_T) | Trigger time (acceleration must be above threshold for this amount of seconds) |
| <a id="FW_LAUN_MOT_DEL"></a>[FW_LAUN_MOT_DEL](../advanced_config/parameter_reference.md#FW_LAUN_MOT_DEL) | Delay from launch detection to motor spin up |
| <a id="FW_LAUN_MOT_DEL"></a>[FW_LAUN_MOT_DEL](../advanced_config/parameter_reference.md#FW_LAUN_MOT_DEL) | Delay from launch detection to motor spin up
| <a id="FW_LAUN_CS_LK_DY"></a>[FW_LAUN_CS_LK_DY](../advanced_config/parameter_reference.md#FW_LAUN_CS_LK_DY) | Delay from launch detection to unlocking the control surfaces
| <a id="CA_CS_LAUN_LK"></a>[CA_CS_LAUN_LK](../advanced_config/parameter_reference.md#CA_CS_LAUN_LK) | Bitmask to select which control surfaces are to be locked during launch |
## Runway Takeoff {#runway_launch}