add ioc file
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/*
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* b_cccv_algo.c
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*
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* Created on: 16.06.2023
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* Author: max
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*/
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#include "b_cccv_algo.h"
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#include "charger_control.h"
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#include "main.h"
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static uint32_t dt;
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static uint32_t lasttick;
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static float errorintegration = 0;
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static float finalvoltage = 4.15;
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static float chargevoltage = 430;
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static float chargecurrentlimit = CHARGE_CURRENT_LIMIT;
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static float resistancelut[1024];
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static float voltageresistancelut[1024];
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#define CURRENT_R 2.2
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#define VOLTAGE_R 18
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CCCV_CONTROL_STATE chargerstate = NO_CHARGING;
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#ifdef SIMULINKTEST
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CCCV_CONTROL_STATE cccvloop(float maxcellvoltage, float voltagesetpoint, float maxcurrent, float*ccurrent)
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#else
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CCCV_CONTROL_STATE cccvloop(float maxcellvoltage, float voltagesetpoint, float maxcurrent)
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#endif
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{
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#ifdef SIMULINKTEST
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dt = 1000;
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#else
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dt = HAL_GetTick() - lasttick;
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lasttick = HAL_GetTick();
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#endif
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float chargecurrent = 0;
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//Calculate Voltage Error and I and P Factors
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float voltageerror = voltagesetpoint-maxcellvoltage;
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float errorproportional = P_GAIN * voltageerror;
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errorintegration += I_GAIN*voltageerror * ((float)dt)/1000;
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//Limit I and P Factors to maximum charge current
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if(errorintegration > maxcurrent)
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errorintegration = maxcurrent;
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if(errorproportional > maxcurrent)
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errorproportional = maxcurrent;
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if(errorproportional <= -maxcurrent)
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errorproportional = -maxcurrent;
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if(errorintegration <= -maxcurrent)
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errorintegration = -maxcurrent;
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float errorintegrationout = errorintegration;
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chargecurrent = (errorproportional + errorintegrationout);
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if(chargecurrent > maxcurrent)
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chargecurrent = maxcurrent;
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if(chargecurrent <= 0)
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chargecurrent = 0;
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if(chargecurrent < 0.01) //If Charge Current ist below minimum threshold, stop charging
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return CHARGING_COMPLETED;
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#ifdef SIMULINKTEST
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*ccurrent = chargecurrent;
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#else
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setchargevoltage(103,finalvoltage+0.05);
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setchargecurrent(chargecurrent);
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#endif
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return CHARGING_IN_PROGRESS;
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}
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#ifndef SIMULINKTEST
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void initChargerAlgo(uint8_t numberofcells, float maximumcellvoltage)
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{
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chargerstate = NO_CHARGING;
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chargevoltage = numberofcells * maximumcellvoltage;
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for(uint32_t i = 0; i < 1024; i++)
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{
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resistancelut[i] = 10*CURRENT_R/(CURRENT_R+(20*((float)i)/1024));
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}
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for(uint32_t i = 0; i < 1024; i++)
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{
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voltageresistancelut[i] = (600*VOLTAGE_R)/(VOLTAGE_R+(20*((float)i)/1024));
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}
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}
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void setchargecurrent(float chargecurrent)
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{
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float targetresistance;
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if(chargecurrent != 0)
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{
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for(uint32_t setpoint = 0; setpoint < 1024; setpoint++)
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{
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if(resistancelut[setpoint] <= chargecurrent)
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{
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targetresistance = (20000*((float)setpoint)/1024);
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break;
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}
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}
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}
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else
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{
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targetresistance = 20000;
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}
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float wiperpos = targetresistance/20000 * (1023);
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charger_control_set_current((uint32_t) wiperpos);
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}
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void setchargevoltage(uint8_t numberofcells,float maximumcellvoltage)
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{
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float chargevoltage = numberofcells * maximumcellvoltage;
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float targetresistance;
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if(chargevoltage != 0)
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{
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for(uint32_t setpoint = 0; setpoint < 1024; setpoint++)
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{
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if(voltageresistancelut[setpoint] <= chargevoltage)
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{
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targetresistance = (20000*((float)setpoint)/1024);
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break;
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}
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}
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}
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else
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{
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targetresistance = 20000;
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}
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float wiperpos = targetresistance/20000 * (1023);
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charger_control_set_voltage((uint32_t) wiperpos);
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//@TODO Call Function to set Resistance for Voltage
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}
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void chargingloop(float maximumcellvoltage)
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{
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switch(chargerstate)
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{
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case NO_CHARGING: //Do Nothing IDLE Loop
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chargerstate = NO_CHARGING;
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charger_control_disable_remote();
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errorintegration = 0;
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break;
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case CHARGING_IN_PROGRESS: //Run charging algo periodically
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charger_control_enable_remote();
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chargerstate = cccvloop(maximumcellvoltage, finalvoltage, chargecurrentlimit);
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break;
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case CHARGING_COMPLETED: //Signal Completion of Charging here
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chargerstate = NO_CHARGING;
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charger_control_disable_remote();
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errorintegration = 0;
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break;
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}
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}
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void startcharging(float endvoltage)
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{
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chargerstate = CHARGING_IN_PROGRESS;
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finalvoltage = endvoltage;
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}
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void stopcharging()
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{
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chargerstate = NO_CHARGING;
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charger_control_disable_remote();
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}
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#endif
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#ifdef SIMULINKTEST
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float matlabvalidationwrapper(float maxcellvoltage, float voltagesetpoint, float maxcurrent)
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{
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float chargecurrent = 0;
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(void*) cccvloop(maxcellvoltage,voltagesetpoint,maxcurrent, &chargecurrent);
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return chargecurrent;
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}
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#endif
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