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LibrePilot/flight/libraries/pid/pidcontroldown.h
abeck70 8d2f4722d7 OP-1848 altvario improvements
1. Disable velocity pid loop when altvario is not active
2. Add sanity boundf to ensure max min are inforced.
2015-05-12 17:40:28 +10:00

109 lines
3.5 KiB
C++

/**
******************************************************************************
* @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 <pid.h>
#include <stabilizationdesired.h>
}
#include "pidcontroldowncallback.h"
class PIDControlDown {
public:
PIDControlDown();
~PIDControlDown();
void Initialize(PIDControlDownCallback *callback);
void SetThrustLimits(float min_thrust, float max_thrust);
void Deactivate();
void Activate();
bool IsActive()
{
return mActive;
}
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);
void DisableNeutralThrustCalc()
{
mAllowNeutralThrustCalc = false;
}
void EnableNeutralThrustCalc()
{
mAllowNeutralThrustCalc = true;
}
private:
void setup_neutralThrustCalc();
void run_neutralThrustCalc();
struct pid2 PID;
float deltaTime;
float mVelocitySetpointTarget;
float mVelocitySetpointCurrent;
float mVelocityState;
float mDownCommand;
PIDControlDownCallback *mCallback;
float mNeutral;
float mVelocityMax;
struct pid PIDpos;
float mPositionSetpointTarget;
float mPositionState;
float mMinThrust;
float mMaxThrust;
struct NeutralThrustEstimation {
uint32_t count;
float sum;
float average;
float correction;
float min;
float max;
bool start_sampling;
bool have_correction;
};
struct NeutralThrustEstimation neutralThrustEst;
bool mActive;
bool mAllowNeutralThrustCalc;
};
#endif // PIDCONTROLDOWN_H