redundancy.h

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/**
 * @file    redundancy.h
 * @author  foxBMS Team
 * @date    2020-07-31 (date of creation)
 * @updated 2023-10-12 (date of last update)
 * @version v1.6.0
 * @ingroup APPLICATION
 * @prefix  MRC
 *
 * @brief   Header fileS for handling redundancy between redundant cell voltage
 *          and cell temperature measurements
 *
 */
 
#ifndef FOXBMS__REDUNDANCY_H_
#define FOXBMS__REDUNDANCY_H_
 
/*========== Includes =======================================================*/
 
#include "database.h"
 
#include <stdint.h>
 
/*========== Macros and Definitions =========================================*/
/**
 * Maximum time between measurements before the
 * redundancy module raises an error because a
 * measurement is not updated anymore.
 *
 * The redundancy module will wait a maximum of this time for new current
 * values. If no new values are updated within this timeframe it
 * will invalidate the measurement values.
 */
#define MRC_CURRENT_MEASUREMENT_PERIOD_TIMEOUT_ms (250u)
 
/**
 * Maximum time between AFE measurements before the
 * redundancy module raises an error because a
 * measurement is not updated anymore.
 *
 * The redundancy module will wait a maximum of this
 * time for new values from the base AFE measurement and
 * AFE redundant measurements. If no new values are updated
 * from both measurement sources within this timeframe
 * it will validate the measurement values it has up to
 * this point if possible.
 */
#define MRC_AFE_MEASUREMENT_PERIOD_TIMEOUT_ms (250u)
 
/**
 * Maximum time between current sensor high voltage, current
 * and power measurements before the redundancy module raises
 * an error because a measurement is not updated anymore.
 *
 * The redundancy module will wait a maximum of this
 * time for new values from the current sensor. If no
 * new values are updated within this timeframe it will
 * validate the measurement values it has up to this point
 * if possible.
 */
#define MRC_CURRENT_SENSOR_MEASUREMENT_TIMEOUT_ms (300u)
 
/**
 * If both, the current sensor and the AFE measurement have no valid values
 * we try to construct the string voltage by replacing invalid cell voltage
 * measurements with the average cell voltage in this string. The result of
 * this estimation will be flagged as invalid if more than the number of
 * allowed invalid cell voltages are detected. The result will be markes as
 * valid if less then this number of cells are detected as invalid.
 */
#define MRC_ALLOWED_NUMBER_OF_INVALID_CELL_VOLTAGES (5u)
 
/*========== Extern Constant and Variable Declarations ======================*/
/**
 * This structure contains all the variables relevant for the redundancy state machine.
 */
typedef struct {
    uint32_t lastBaseCellVoltageTimestamp;
    uint32_t lastRedundancy0CellVoltageTimestamp;
    uint32_t lastBaseCelltemperatureTimestamp;
    uint32_t lastRedundancy0CelltemperatureTimestamp;
    uint32_t lastStringCurrentTimestamp[BS_NR_OF_STRINGS];
    uint32_t lastStringPowerTimestamp[BS_NR_OF_STRINGS];
} MRC_STATE_s;
 
/*========== Extern Function Prototypes =====================================*/
/**
 * @brief Function to initalize redundancy module
 *
 * @return #STD_OK if module has been initialized successfully, otherwise #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e MRC_Initialize(void);
 
/**
 * @brief Function to validate the measurement between redundant measurement
 *        values for cell voltage and cell temperature
 *
 * @return #STD_OK if measurement has been validated successfully, otherwise i.e.
 *         if no new values have been measured since the last call #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e MRC_ValidateAfeMeasurement(void);
 
/**
 * @brief Function to validate the measurements of pack values (string values,
 *        pack values)
 *
 * @return #STD_OK if measurement has been validated successfully, otherwise i.e.
 *         if no new values have been measured since the last call #STD_NOT_OK
 */
extern STD_RETURN_TYPE_e MRC_ValidatePackMeasurement(void);
 
/*========== Externalized Static Functions Prototypes (Unit Test) ===========*/
#ifdef UNITY_UNIT_TEST
extern bool TEST_MRC_MeasurementUpdatedAtLeastOnce(uint32_t timestamp, uint32_t previousTimestamp);
extern STD_RETURN_TYPE_e TEST_MRC_MeasurementUpdatedRecently(
    uint32_t timestamp,
    uint32_t previousTimestamp,
    uint32_t timeInterval);
extern bool TEST_MRC_ValidateCellVoltageMeasurement(
    DATA_BLOCK_CELL_VOLTAGE_s *pCellVoltageBase,
    DATA_BLOCK_CELL_VOLTAGE_s *pCellVoltageRedundancy0);
extern bool TEST_MRC_ValidateCellTemperatureMeasurement(
    DATA_BLOCK_CELL_TEMPERATURE_s *pCellTemperatureBase,
    DATA_BLOCK_CELL_TEMPERATURE_s *pCellTemperatureRedundancy0);
extern void TEST_MRC_ValidateCurrentMeasurement(DATA_BLOCK_CURRENT_SENSOR_s *pTableCurrentSensor);
extern void TEST_MRC_ValidatePowerMeasurement(DATA_BLOCK_CURRENT_SENSOR_s *pTableCurrentSensor);
extern void TEST_MRC_ValidateStringVoltageMeasurement(
    DATA_BLOCK_CURRENT_SENSOR_s *pTableCurrentSensor,
    DATA_BLOCK_CELL_VOLTAGE_s *pTableCellVoltage);
extern void TEST_MRC_ValidateBatteryVoltageMeasurement(void);
extern void TEST_MRC_ValidateHighVoltageMeasurement(DATA_BLOCK_CURRENT_SENSOR_s *pTableCurrentSensor);
extern STD_RETURN_TYPE_e TEST_MRC_CalculateCellVoltageMinMaxAverage(
    DATA_BLOCK_CELL_VOLTAGE_s *pValidatedVoltages,
    DATA_BLOCK_MIN_MAX_s *pMinMaxAverageValues);
extern STD_RETURN_TYPE_e TEST_MRC_CalculateCellTemperatureMinMaxAverage(
    DATA_BLOCK_CELL_TEMPERATURE_s *pValidatedTemperatures,
    DATA_BLOCK_MIN_MAX_s *pMinMaxAverageValues);
extern STD_RETURN_TYPE_e TEST_MRC_ValidateCellVoltage(
    DATA_BLOCK_CELL_VOLTAGE_s *pCellVoltageBase,
    DATA_BLOCK_CELL_VOLTAGE_s *pCellVoltageRedundancy0,
    DATA_BLOCK_CELL_VOLTAGE_s *pValidatedVoltages);
extern STD_RETURN_TYPE_e TEST_MRC_UpdateCellVoltageValidation(
    DATA_BLOCK_CELL_VOLTAGE_s *pCellVoltage,
    DATA_BLOCK_CELL_VOLTAGE_s *pValidatedVoltages);
extern STD_RETURN_TYPE_e TEST_MRC_ValidateCellTemperature(
    DATA_BLOCK_CELL_TEMPERATURE_s *pCelltemperatureBase,
    DATA_BLOCK_CELL_TEMPERATURE_s *pCelltemperatureRedundancy0,
    DATA_BLOCK_CELL_TEMPERATURE_s *pValidatedTemperatures);
extern STD_RETURN_TYPE_e TEST_MRC_UpdateCellTemperatureValidation(
    DATA_BLOCK_CELL_TEMPERATURE_s *pCellTemperature,
    DATA_BLOCK_CELL_TEMPERATURE_s *pValidatedTemperature);
#endif
 
#endif /* FOXBMS__REDUNDANCY_H_ */