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Diffstat (limited to 'src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp')
-rw-r--r--src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp b/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
index b3a78ad82..84c14be01 100644
--- a/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
+++ b/src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
@@ -569,6 +569,12 @@ FixedwingPositionControl::parameters_update()
param_get(_parameter_handles.land_H1_virt, &(_parameters.land_H1_virt));
param_get(_parameter_handles.land_flare_alt_relative, &(_parameters.land_flare_alt_relative));
param_get(_parameter_handles.land_thrust_lim_alt_relative, &(_parameters.land_thrust_lim_alt_relative));
+
+ /* check if negative value for 2/3 of flare altitude is set for throttle cut */
+ if (_parameters.land_thrust_lim_alt_relative < 0.0f) {
+ _parameters.land_thrust_lim_alt_relative = 0.66f * _parameters.land_flare_alt_relative;
+ }
+
param_get(_parameter_handles.land_heading_hold_horizontal_distance, &(_parameters.land_heading_hold_horizontal_distance));
param_get(_parameter_handles.range_finder_rel_alt, &(_parameters.range_finder_rel_alt));
@@ -823,7 +829,7 @@ float FixedwingPositionControl::get_relative_landingalt(float land_setpoint_alt,
* the measurement is valid
* the estimated relative altitude (from global altitude estimate and landing waypoint) <= range_finder_use_relative_alt
*/
- if (range_finder_use_relative_alt < 0 || !range_finder.valid || rel_alt_estimated > range_finder_use_relative_alt ) {
+ if (range_finder_use_relative_alt < 0 || !range_finder.valid || range_finder.distance > range_finder_use_relative_alt ) {
return rel_alt_estimated;
}
@@ -1397,6 +1403,9 @@ void FixedwingPositionControl::tecs_update_pitch_throttle(float alt_sp, float v_
_mTecs.updateAltitudeSpeed(flightPathAngle, altitude, alt_sp, _airspeed.true_airspeed_m_s, v_sp, mode,
limitOverride);
} else {
+ /* No underspeed protection in landing mode */
+ _tecs.set_detect_underspeed_enabled(!(mode == TECS_MODE_LAND || mode == TECS_MODE_LAND_THROTTLELIM));
+
/* Using tecs library */
_tecs.update_pitch_throttle(_R_nb, _att.pitch, altitude, alt_sp, v_sp,
_airspeed.indicated_airspeed_m_s, eas2tas,