/**************************************************************************** * * Copyright (c) 2013-2015 PX4 Development Team. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name PX4 nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /** * @file mc_att_control_params.c * Parameters for multicopter attitude controller. * * @author Lorenz Meier * @author Anton Babushkin */ /** * Roll time constant * * Reduce if the system is too twitchy, increase if the response is too slow and sluggish. * * @min 0.15 * @max 0.25 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLL_TC, 0.2f); /** * Pitch time constant * * Reduce if the system is too twitchy, increase if the response is too slow and sluggish. * * @min 0.15 * @max 0.25 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCH_TC, 0.2f); /** * Roll P gain * * Roll proportional gain, i.e. desired angular speed in rad/s for error 1 rad. * * @min 0.0 * @max 8 * @decimal 2 * @increment 0.1 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLL_P, 6.5f); /** * Roll rate P gain * * Roll rate proportional gain, i.e. control output for angular speed error 1 rad/s. * * @min 0.0 * @max 0.5 * @decimal 3 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLLRATE_P, 0.15f); /** * Roll rate I gain * * Roll rate integral gain. Can be set to compensate static thrust difference or gravity center offset. * * @min 0.0 * @decimal 3 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLLRATE_I, 0.05f); /** * Roll rate D gain * * Roll rate differential gain. Small values help reduce fast oscillations. If value is too big oscillations will appear again. * * @min 0.0 * @max 0.01 * @decimal 4 * @increment 0.0005 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLLRATE_D, 0.003f); /** * Roll rate feedforward * * Improves tracking performance. * * @min 0.0 * @decimal 4 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLLRATE_FF, 0.0f); /** * Pitch P gain * * Pitch proportional gain, i.e. desired angular speed in rad/s for error 1 rad. * * @unit 1/s * @min 0.0 * @max 10 * @decimal 2 * @increment 0.0005 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCH_P, 6.5f); /** * Pitch rate P gain * * Pitch rate proportional gain, i.e. control output for angular speed error 1 rad/s. * * @min 0.0 * @max 0.6 * @decimal 3 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCHRATE_P, 0.15f); /** * Pitch rate I gain * * Pitch rate integral gain. Can be set to compensate static thrust difference or gravity center offset. * * @min 0.0 * @decimal 3 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCHRATE_I, 0.05f); /** * Pitch rate D gain * * Pitch rate differential gain. Small values help reduce fast oscillations. If value is too big oscillations will appear again. * * @min 0.0 * @decimal 4 * @increment 0.0005 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCHRATE_D, 0.003f); /** * Pitch rate feedforward * * Improves tracking performance. * * @min 0.0 * @decimal 4 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCHRATE_FF, 0.0f); /** * Yaw P gain * * Yaw proportional gain, i.e. desired angular speed in rad/s for error 1 rad. * * @unit 1/s * @min 0.0 * @max 5 * @decimal 2 * @increment 0.1 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAW_P, 2.8f); /** * Yaw rate P gain * * Yaw rate proportional gain, i.e. control output for angular speed error 1 rad/s. * * @min 0.0 * @max 0.6 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRATE_P, 0.2f); /** * Yaw rate I gain * * Yaw rate integral gain. Can be set to compensate static thrust difference or gravity center offset. * * @min 0.0 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRATE_I, 0.1f); /** * Yaw rate D gain * * Yaw rate differential gain. Small values help reduce fast oscillations. If value is too big oscillations will appear again. * * @min 0.0 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRATE_D, 0.0f); /** * Yaw rate feedforward * * Improves tracking performance. * * @min 0.0 * @decimal 4 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRATE_FF, 0.0f); /** * Yaw feed forward * * Feed forward weight for manual yaw control. 0 will give slow responce and no overshot, 1 - fast responce and big overshot. * * @min 0.0 * @max 1.0 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAW_FF, 0.5f); /** * Max roll rate * * Limit for roll rate, has effect for large rotations in autonomous mode, to avoid large control output and mixer saturation. * * @unit deg/s * @min 0.0 * @max 360.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ROLLRATE_MAX, 220.0f); /** * Max pitch rate * * Limit for pitch rate, has effect for large rotations in autonomous mode, to avoid large control output and mixer saturation. * * @unit deg/s * @min 0.0 * @max 360.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_PITCHRATE_MAX, 220.0f); /** * Max yaw rate * * A value of significantly over 120 degrees per second can already lead to mixer saturation. * * @unit deg/s * @min 0.0 * @max 360.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRATE_MAX, 200.0f); /** * Max yaw rate in auto mode * * Limit for yaw rate, has effect for large rotations in autonomous mode, * to avoid large control output and mixer saturation. A value of significantly * over 60 degrees per second can already lead to mixer saturation. * A value of 30 degrees / second is recommended to avoid very audible twitches. * * @unit deg/s * @min 0.0 * @max 120.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_YAWRAUTO_MAX, 45.0f); /** * Max acro roll rate * * @unit deg/s * @min 0.0 * @max 1000.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ACRO_R_MAX, 360.0f); /** * Max acro pitch rate * * @unit deg/s * @min 0.0 * @max 1000.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ACRO_P_MAX, 360.0f); /** * Max acro yaw rate * * @unit deg/s * @min 0.0 * @max 1000.0 * @decimal 1 * @increment 5 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_ACRO_Y_MAX, 360.0f); /** * Threshold for Rattitude mode * * Manual input needed in order to override attitude control rate setpoints * and instead pass manual stick inputs as rate setpoints * * @unit * @min 0.0 * @max 1.0 * @decimal 2 * @increment 0.01 * @group Multicopter Attitude Control */ PARAM_DEFINE_FLOAT(MC_RATT_TH, 1.0f);