yetangitu/Battery-Emulator
1
0
Fork 0
mirror of https://github.com/dalathegreat/Battery-Emulator.git synced 2025-10-05 19:42:08 +02:00
Code Issues Projects Releases Packages Wiki Activity

Merge pull request #934 from dalathegreat/feature/volvo-69kWh

Browse source 
New battery: Add support for 69kWh Volvo XC40 battery
This commit is contained in:
Daniel Öster 2025-03-06 21:19:37 +03:00 • committed by GitHub
commit 606d1341ec
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 29 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

34
Software/src/battery/VOLVO-SPA-BATTERY.cpp
View file

@ -33,7 +33,6 @@ static uint8_t battery_request_idx = 0;
static uint8_t rxConsecutiveFrames = 0;
static uint16_t min_max_voltage[2]; //contains cell min[0] and max[1] values in mV
static uint8_t cellcounter = 0;
static uint32_t remaining_capacity = 0;
static uint16_t cell_voltages[108]; //array with all the cellvoltages
static bool startedUp = false;
static uint8_t DTC_reset_counter = 0;
@ -134,12 +133,13 @@ void update_values_battery() { //This function maps all the values fetched via
datalayer_extended.VolvoPolestar.UserRequestDTCreadout = false;
}
remaining_capacity = (78200 - CHARGE_ENERGY);
datalayer.battery.status.remaining_capacity_Wh = (datalayer.battery.info.total_capacity_Wh - CHARGE_ENERGY);
//datalayer.battery.status.real_soc = SOC_BMS; // Use BMS reported SOC, havent figured out how to get the BMS to calibrate empty/full yet
SOC_CALC = remaining_capacity / 78; // Use calculated SOC based on remaining_capacity
// Use calculated SOC based on remaining_capacity
SOC_CALC = (datalayer.battery.status.remaining_capacity_Wh / (datalayer.battery.info.total_capacity_Wh / 1000));
datalayer.battery.status.real_soc = SOC_CALC * 10;
datalayer.battery.status.real_soc = SOC_CALC * 10; //Add one decimal to make it pptt
if (BATT_U > MAX_U) // Protect if overcharged
{
@ -151,7 +151,6 @@ void update_values_battery() { //This function maps all the values fetched via
datalayer.battery.status.voltage_dV = BATT_U * 10;
datalayer.battery.status.current_dA = BATT_I * 10;
datalayer.battery.status.remaining_capacity_Wh = remaining_capacity;
datalayer.battery.status.max_discharge_power_W = HvBattPwrLimDchaSlowAgi * 1000; //kW to W
datalayer.battery.status.max_charge_power_W = HvBattPwrLimChrgSlowAgi * 1000; //kW to W
@ -166,6 +165,22 @@ void update_values_battery() { //This function maps all the values fetched via
datalayer.battery.status.cell_voltages_mV[i] = cell_voltages[i];
}
//If we have enough cell values populated (atleast 96 read) AND number_of_cells not initialized yet
if (cell_voltages[95] > 0 && datalayer.battery.info.number_of_cells == 0) {
// We can determine whether we have 96S or 108S battery
if (datalayer.battery.status.cell_voltages_mV[107] > 0) {
datalayer.battery.info.number_of_cells = 108;
datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_108S_DV;
datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_108S_DV;
datalayer.battery.info.total_capacity_Wh = 78200;
} else {
datalayer.battery.info.number_of_cells = 96;
datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_96S_DV;
datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_96S_DV;
datalayer.battery.info.total_capacity_Wh = 69511;
}
}
#ifdef DEBUG_LOG
logging.print("BMS reported SOC%: ");
logging.println(SOC_BMS);
@ -463,11 +478,12 @@ void transmit_can_battery() {
}
void setup_battery(void) { // Performs one time setup at startup
strncpy(datalayer.system.info.battery_protocol, "Volvo / Polestar 78kWh battery", 63);
strncpy(datalayer.system.info.battery_protocol, "Volvo / Polestar 69/78kWh SPA battery", 63);
datalayer.system.info.battery_protocol[63] = '\0';
datalayer.battery.info.number_of_cells = 108;
datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_DV;
datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_DV;
datalayer.battery.info.number_of_cells = 0; // Initializes when all cells have been read
datalayer.battery.info.total_capacity_Wh = 78200; //Startout in 78kWh mode (This value used for SOC calc)
datalayer.battery.info.max_design_voltage_dV = MAX_PACK_VOLTAGE_108S_DV; //Startout with max allowed range
datalayer.battery.info.min_design_voltage_dV = MIN_PACK_VOLTAGE_96S_DV; //Startout with min allowed range
datalayer.battery.info.max_cell_voltage_mV = MAX_CELL_VOLTAGE_MV;
datalayer.battery.info.min_cell_voltage_mV = MIN_CELL_VOLTAGE_MV;
datalayer.battery.info.max_cell_voltage_deviation_mV = MAX_CELL_DEVIATION_MV;

6
Software/src/battery/VOLVO-SPA-BATTERY.h
View file

@ -4,8 +4,10 @@
#include "../include.h"
#define BATTERY_SELECTED
#define MAX_PACK_VOLTAGE_DV 4540 //5000 = 500.0V
#define MIN_PACK_VOLTAGE_DV 2938
#define MAX_PACK_VOLTAGE_108S_DV 4540
#define MIN_PACK_VOLTAGE_108S_DV 2938
#define MAX_PACK_VOLTAGE_96S_DV 4030
#define MIN_PACK_VOLTAGE_96S_DV 2620
#define MAX_CELL_DEVIATION_MV 250
#define MAX_CELL_VOLTAGE_MV 4210 //Battery is put into emergency stop if one cell goes over this value
#define MIN_CELL_VOLTAGE_MV 2700 //Battery is put into emergency stop if one cell goes below this value