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https://gitee.com/mirrors_PX4/PX4-Autopilot.git
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GaspardBesacier
dfced1fe46
New param VT_PSHER_SLEW for ramping up throttle of pusher during front/back transition, that replaces the old VT_PSHER_RMP_DT param.
134 lines
4.5 KiB
C
134 lines
4.5 KiB
C
/****************************************************************************
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*
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* Copyright (c) 2015 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file standard_params.c
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* Parameters for the standard VTOL controller.
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*
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* @author Simon Wilks <simon@uaventure.com>
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* @author Roman Bapst <roman@px4.io>
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*/
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/**
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* Enable usage of fixed-wing actuators in hover to generate forward force (instead of pitching down).
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*
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* This feature can be used to avoid the plane having to pitch down in order to move forward,
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* and prevents large, negative lift values being created when facing strong winds.
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* Fixed-wing forward actuators refers to puller/pusher (standard VTOL), or forward-tilt (tiltrotor VTOL).
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* Only active if demanded down pitch is below VT_PITCH_MIN.
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* Use VT_FWD_THRUST_SC to tune it.
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*
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* Only active (if enabled) in Altitude, Position and Auto modes, not in Stabilized.
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*
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* @value 0 Disabled
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* @value 1 Enabled (except LANDING)
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* @value 2 Enabled if distance to ground above MPC_LAND_ALT1
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* @value 3 Enabled if distance to ground above MPC_LAND_ALT2
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* @value 4 Enabled constantly
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* @value 5 Enabled if distance to ground above MPC_LAND_ALT1 (except LANDING)
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* @value 6 Enabled if distance to ground above MPC_LAND_ALT2 (except LANDING)
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*
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_INT32(VT_FWD_THRUST_EN, 0);
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/**
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* Fixed-wing actuator thrust scale for hover forward flight.
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*
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* Scale applied to the demanded down-pitch to get the fixed-wing forward actuation in hover mode.
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* Only active if demaded down pitch is below VT_PITCH_MIN.
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* Enabled via VT_FWD_THRUST_EN.
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*
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* @min 0.0
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* @max 2.0
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_FLOAT(VT_FWD_THRUST_SC, 0.7f);
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/**
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* Back transition MC motor ramp up time
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*
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* This sets the duration during which the MC motors ramp up to the commanded thrust during the back transition stage.
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*
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* @unit s
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* @min 0.0
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* @max 20.0
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_FLOAT(VT_B_TRANS_RAMP, 3.0f);
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/**
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* Output on airbrakes channel during back transition
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*
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* Used for airbrakes or with ESCs that have reverse thrust enabled on a separate channel.
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* Airbrakes need to be enabled for your selected model/mixer.
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*
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* @min 0
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* @max 1
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* @increment 0.01
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* @decimal 2
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_FLOAT(VT_B_REV_OUT, 0.0f);
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/**
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* Delay in seconds before applying back transition throttle
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*
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* Set this to a value greater than 0 to give the motor time to spin down.
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*
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* @unit s
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* @min 0
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* @max 10
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* @increment 1
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* @decimal 2
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_FLOAT(VT_B_REV_DEL, 0.0f);
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/**
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* Pusher throttle ramp up slew rate
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*
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* Defines the slew rate of the puller/pusher throttle during transitions.
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* Zero will deactivate the slew rate limiting and thus produce an instant throttle
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* rise to the transition throttle VT_F_TRANS_THR.
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*
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* @unit 1/s
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* @min 0
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* @increment 0.01
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* @decimal 2
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* @group VTOL Attitude Control
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*/
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PARAM_DEFINE_FLOAT(VT_PSHER_SLEW, 0.33f);
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