eive-obsw/mission/controller/acs/ActuatorCmd.cpp

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/*
* ActuatorCmd.cpp
*
* Created on: 4 Aug 2022
* Author: Robin Marquardt
*/
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#include "ActuatorCmd.h"
#include "util/MathOperations.h"
#include "util/CholeskyDecomposition.h"
#include <cmath>
#include <fsfw/globalfunctions/constants.h>
#include <fsfw/globalfunctions/math/VectorOperations.h>
#include <fsfw/globalfunctions/math/MatrixOperations.h>
#include <fsfw/globalfunctions/math/QuaternionOperations.h>
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ActuatorCmd::ActuatorCmd(AcsParameters *acsParameters_) {
acsParameters = *acsParameters_;
}
ActuatorCmd::~ActuatorCmd(){
}
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void ActuatorCmd::cmdSpeedToRws(const int32_t *speedRw0, const int32_t *speedRw1,
const int32_t *speedRw2, const int32_t *speedRw3,
const double *rwTrqIn, const double *rwTrqNS, double *rwCmdSpeed) {
using namespace Math;
// Scaling the commanded torque to a maximum value
double torque[4] = {0, 0, 0, 0};
double maxTrq = acsParameters.rwHandlingParameters.maxTrq;
VectorOperations<double>::add(rwTrqIn, rwTrqNS, torque, 4);
double maxValue = 0;
for (int i = 0; i < 4; i++) { // size of torque, always 4 ?
if (abs(torque[i]) > maxValue) {
maxValue = abs(torque[i]);
}
}
if (maxValue > maxTrq) {
double scalingFactor = maxTrq / maxValue;
VectorOperations<double>::mulScalar(torque, scalingFactor, torque, 4);
}
// Calculating the commanded speed in RPM for every reaction wheel
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double speedRws[4] = {(double)*speedRw0, (double)*speedRw1, (double)*speedRw2, (double)*speedRw3};
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double deltaSpeed[4] = {0, 0, 0, 0};
double commandTime = acsParameters.onBoardParams.sampleTime,
inertiaWheel = acsParameters.rwHandlingParameters.inertiaWheel;
double radToRpm = 60 / (2 * PI); // factor for conversion to RPM
// W_RW = Torque_RW / I_RW * delta t [rad/s]
double factor = commandTime / inertiaWheel * radToRpm;
VectorOperations<double>::mulScalar(torque, factor, deltaSpeed, 4);
VectorOperations<double>::add(speedRws, deltaSpeed, rwCmdSpeed, 4);
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}
void ActuatorCmd::cmdDipolMtq(const double *dipolMoment, double *dipolMomentUnits) {
// Convert to Unit frame
MatrixOperations<double>::multiply(*acsParameters.magnetorquesParameter.inverseAlignment, dipolMoment, dipolMomentUnits, 3, 3, 1);
// Scaling along largest element if dipol exceeds maximum
double maxDipol = acsParameters.magnetorquesParameter.DipolMax;
double maxValue = 0;
for (int i = 0; i < 3; i++) {
if (abs(dipolMomentUnits[i]) > maxDipol) {
maxValue = abs(dipolMomentUnits[i]);
}
}
if (maxValue > maxDipol) {
double scalingFactor = maxDipol / maxValue;
VectorOperations<double>::mulScalar(dipolMomentUnits, scalingFactor, dipolMomentUnits, 3);
}
}