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Add cellvoltage safeties and safer SOC handling

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This commit is contained in:
Daniel Öster 2024-07-17 00:46:12 +03:00
parent 36d06e85f2
commit 650ba6bcbe
1 changed files with 15 additions and 1 deletions
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16
Software/src/battery/IMIEV-CZERO-ION-BATTERY.cpp
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@ -10,6 +10,8 @@
//Figure out if CAN messages need to be sent to keep the system happy? //Figure out if CAN messages need to be sent to keep the system happy?
/* Do not change code below unless you are sure what you are doing */ /* Do not change code below unless you are sure what you are doing */
#define MAX_CELL_VOLTAGE 4100
#define MIN_CELL_VOLTAGE 2750
static uint8_t errorCode = 0; //stores if we have an error code active from battery control logic static uint8_t errorCode = 0; //stores if we have an error code active from battery control logic
static uint8_t BMU_Detected = 0; static uint8_t BMU_Detected = 0;
static uint8_t CMU_Detected = 0; static uint8_t CMU_Detected = 0;
@ -98,6 +100,14 @@ void update_values_battery() { //This function maps all the values fetched via
datalayer.battery.status.temperature_min_dC = (int16_t)(max_temp_cel * 10); datalayer.battery.status.temperature_min_dC = (int16_t)(max_temp_cel * 10);
//Check safeties
if (datalayer.battery.status.cell_max_voltage_mV >= MAX_CELL_VOLTAGE) {
set_event(EVENT_CELL_OVER_VOLTAGE, datalayer.battery.status.cell_max_voltage_mV);
}
if (datalayer.battery.status.cell_min_voltage_mV <= MIN_CELL_VOLTAGE) {
set_event(EVENT_CELL_UNDER_VOLTAGE, datalayer.battery.status.cell_min_voltage_mV);
}
if (!BMU_Detected) { if (!BMU_Detected) {
#ifdef DEBUG_VIA_USB #ifdef DEBUG_VIA_USB
Serial.println("BMU not detected, check wiring!"); Serial.println("BMU not detected, check wiring!");
@ -131,7 +141,11 @@ void receive_can_battery(CAN_frame_t rx_frame) {
switch (rx_frame.MsgID) { switch (rx_frame.MsgID) {
case 0x374: //BMU message, 10ms - SOC case 0x374: //BMU message, 10ms - SOC
temp_value = ((rx_frame.data.u8[1] - 10) / 2); temp_value = ((rx_frame.data.u8[1] - 10) / 2);
if (temp_value >= 0 && temp_value <= 101) { if (temp_value < 0) {
BMU_SOC = 0;
} else if (temp_value > 100) {
BMU_SOC = 100;
} else { // Between 0-100
BMU_SOC = temp_value; BMU_SOC = temp_value;
} }
break; break;