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Avoid oscillation in precharge incase it fails/timeoutus

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This commit is contained in:
Daniel Öster 2025-08-19 21:27:29 +03:00
parent 10a60abd1a
commit d715d169fe
2 changed files with 14 additions and 3 deletions
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14
Software/src/communication/precharge_control/precharge_control.cpp
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@ -64,6 +64,14 @@ void handle_precharge_control(unsigned long currentMillis) {
auto hia4v1_pin = esp32hal->HIA4V1_PIN();
auto inverter_disconnect_contactor_pin = esp32hal->INVERTER_DISCONNECT_CONTACTOR_PIN();
// If we're in FAILURE state, completely disable any further precharge attempts
if (datalayer.system.status.precharge_status == AUTO_PRECHARGE_FAILURE) {
pinMode(hia4v1_pin, OUTPUT);
digitalWrite(hia4v1_pin, LOW);
digitalWrite(inverter_disconnect_contactor_pin, ON);
return; // Exit immediately - no further processing allowed. Reboot required to recover
}
int32_t target_voltage = datalayer.battery.status.voltage_dV;
int32_t external_voltage = datalayer_extended.meb.BMS_voltage_intermediate_dV;
@ -128,11 +136,13 @@ void handle_precharge_control(unsigned long currentMillis) {
pinMode(hia4v1_pin, OUTPUT);
digitalWrite(hia4v1_pin, LOW);
digitalWrite(inverter_disconnect_contactor_pin, ON);
datalayer.system.status.precharge_status = AUTO_PRECHARGE_OFF;
datalayer.system.status.precharge_status = AUTO_PRECHARGE_FAILURE;
#ifdef DEBUG_LOG
logging.printf("Precharge: Disabled (timeout reached / BMS fault) -> AUTO_PRECHARGE_OFF\n");
logging.printf("Precharge: CRITICAL FAILURE (timeout/BMS fault) -> REQUIRES REBOOT\n");
#endif
set_event(EVENT_AUTOMATIC_PRECHARGE_FAILURE, 0);
// Force stop any further precharge attempts
datalayer.system.settings.start_precharging = false;
// Add event
} else if (datalayer.system.status.battery_allows_contactor_closing) {

3
Software/src/devboard/utils/types.h
View file

@ -28,7 +28,8 @@ enum PrechargeState {
AUTO_PRECHARGE_START,
AUTO_PRECHARGE_PRECHARGING,
AUTO_PRECHARGE_OFF,
AUTO_PRECHARGE_COMPLETED
AUTO_PRECHARGE_COMPLETED,
AUTO_PRECHARGE_FAILURE
};
#define DISCHARGING 1