/** ****************************************************************************** * @addtogroup OpenPilotModules OpenPilot Modules * @{ * @addtogroup PathFollower PID Control implementation * @brief PID Controller for down direction * @{ * * @file PIDControlDown.h * @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2015. * @brief Executes control loop for down direction * * @see The GNU Public License (GPL) Version 3 * *****************************************************************************/ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef PIDCONTROLDOWN_H #define PIDCONTROLDOWN_H extern "C" { #include #include } #include "pathfollowerfsm.h" class PIDControlDown { public: PIDControlDown(); ~PIDControlDown(); void Initialize(PathFollowerFSM *fsm); void SetThrustLimits(float min_thrust, float max_thrust); void Deactivate(); void Activate(); void UpdateParameters(float kp, float ki, float kd, float beta, float dT, float velocityMax); void UpdateNeutralThrust(float neutral); void UpdateVelocitySetpoint(float setpoint); void RateLimit(float *spDesired, float *spCurrent, float rateLimit); void UpdateVelocityState(float pv); float GetVelocityDesired(void); float GetDownCommand(void); void UpdatePositionalParameters(float kp); void UpdatePositionState(float pvDown); void UpdatePositionSetpoint(float setpointDown); void ControlPosition(); void ControlPositionWithPath(struct path_status *progress); void UpdateBrakeVelocity(float startingVelocity, float dT, float brakeRate, float currentVelocity, float *updatedVelocity); void UpdateVelocityStateWithBrake(float pvDown, float path_time, float brakeRate); private: void setup_neutralThrustCalc(); void run_neutralThrustCalc(); struct pid2 PID; float deltaTime; float mVelocitySetpointTarget; float mVelocitySetpointCurrent; float mVelocityState; float mDownCommand; PathFollowerFSM *mFSM; float mNeutral; float mVelocityMax; struct pid PIDpos; float mPositionSetpointTarget; float mPositionState; float mMinThrust; float mMaxThrust; uint8_t mActive; struct NeutralThrustEstimation { uint32_t count; float sum; float average; float correction; float min; float max; bool start_sampling; bool have_correction; }; struct NeutralThrustEstimation neutralThrustEst; }; #endif // PIDCONTROLDOWN_H