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mc_pos_control: execute failsafe with invalid setpoints

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This commit is contained in:
Matthias Grob
2019-10-14 20:35:45 +02:00
committed by Julian Oes
parent 95dc522b99
commit 5f53ae1253
1 changed files with 13 additions and 6 deletions
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src/modules/mc_pos_control/mc_pos_control_main.cpp
+13 -6
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@@ -579,9 +579,9 @@ MulticopterPositionControl::Run()
// check if any task is active
if (_flight_tasks.isAnyTaskActive()) {
// setpoints from flighttask
vehicle_local_position_setpoint_s setpoint;
// setpoints and constraints for the position controller from flighttask or failsafe
vehicle_local_position_setpoint_s setpoint = FlightTask::empty_setpoint;
vehicle_constraints_s constraints = FlightTask::empty_constraints;
_flight_tasks.setYawHandler(_wv_controller);
@@ -593,6 +593,8 @@ MulticopterPositionControl::Run()
} else {
setpoint = _flight_tasks.getPositionSetpoint();
constraints = _flight_tasks.getConstraints();
_failsafe_land_hysteresis.set_state_and_update(false, time_stamp_current);
// Check if position, velocity or thrust pairs are valid -> trigger failsaife if no pair is valid
@@ -612,7 +614,6 @@ MulticopterPositionControl::Run()
// publish trajectory setpoint
_traj_sp_pub.publish(setpoint);
vehicle_constraints_s constraints = _flight_tasks.getConstraints();
landing_gear_s gear = _flight_tasks.getGear();
// check if all local states are valid and map accordingly
@@ -642,7 +643,6 @@ MulticopterPositionControl::Run()
constraints.tilt = math::radians(_param_mpc_tiltmax_lnd.get());
}
// limit altitude only if local position is valid
if (PX4_ISFINITE(_states.position(2))) {
limit_altitude(setpoint);
@@ -655,6 +655,9 @@ MulticopterPositionControl::Run()
// update position controller setpoints
if (!_control.updateSetpoint(setpoint)) {
warn_rate_limited("Position-Control Setpoint-Update failed");
failsafe(setpoint, _states, true, !was_in_failsafe);
_control.updateSetpoint(setpoint);
constraints = FlightTask::empty_constraints;
}
// Generate desired thrust and yaw.
@@ -977,7 +980,7 @@ MulticopterPositionControl::failsafe(vehicle_local_position_setpoint_s &setpoint
setpoint.vz = _param_mpc_land_speed.get();
if (warn) {
PX4_WARN("Failsafe: blind hover");
PX4_WARN("Failsafe: blind land");
}
}
@@ -991,6 +994,10 @@ MulticopterPositionControl::failsafe(vehicle_local_position_setpoint_s &setpoint
// emergency descend with a bit below hover thrust
setpoint.vz = NAN;
setpoint.thrust[2] = _param_mpc_thr_hover.get() * .8f;
if (warn) {
PX4_WARN("Failsafe: blind descend");
}
}
_in_failsafe = true;