Header fileS for handling redundancy between redundant cell voltage and cell temperature measurements. More...

#include "database.h"
#include <stdint.h>

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Data Structures
struct	MRC_STATE_s

Macros
#define	MRC_CURRENT_MEASUREMENT_PERIOD_TIMEOUT_ms (250u)

#define	MRC_AFE_MEASUREMENT_PERIOD_TIMEOUT_ms (250u)

#define	MRC_CURRENT_SENSOR_MEASUREMENT_TIMEOUT_ms (300u)

#define	MRC_ALLOWED_NUMBER_OF_INVALID_CELL_VOLTAGES (5u)

Functions
STD_RETURN_TYPE_e	MRC_Initialize (void)
	Function to initalize redundancy module. More...

STD_RETURN_TYPE_e	MRC_ValidateAfeMeasurement (void)
	Function to validate the measurement between redundant measurement values for cell voltage and cell temperature. More...

STD_RETURN_TYPE_e	MRC_ValidatePackMeasurement (void)
	Function to validate the measurements of pack values (string values, pack values) More...

Detailed Description

Header fileS for handling redundancy between redundant cell voltage and cell temperature measurements.

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Author: foxBMS Team

Date: 2020-07-31 (date of creation)

Updated: 2023-02-03 (date of last update)

Version: v1.5.0

Prefix: MRC

Definition in file redundancy.h.

Macro Definition Documentation

◆ MRC_AFE_MEASUREMENT_PERIOD_TIMEOUT_ms

#define MRC_AFE_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.

Definition at line 89 of file redundancy.h.

◆ MRC_ALLOWED_NUMBER_OF_INVALID_CELL_VOLTAGES

#define MRC_ALLOWED_NUMBER_OF_INVALID_CELL_VOLTAGES (5u)

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.

Definition at line 112 of file redundancy.h.

◆ MRC_CURRENT_MEASUREMENT_PERIOD_TIMEOUT_ms

#define MRC_CURRENT_MEASUREMENT_PERIOD_TIMEOUT_ms (250u)

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.

Definition at line 75 of file redundancy.h.

◆ MRC_CURRENT_SENSOR_MEASUREMENT_TIMEOUT_ms

#define MRC_CURRENT_SENSOR_MEASUREMENT_TIMEOUT_ms (300u)

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.

Definition at line 102 of file redundancy.h.

Function Documentation

◆ MRC_Initialize()

STD_RETURN_TYPE_e MRC_Initialize ( void )

Function to initalize redundancy module.

Returns: STD_OK if module has been initialized successfully, otherwise STD_NOT_OK

< bitmask if current is valid. 0->valid, 1->invalid

< bitmask if voltage is valid. 0->valid, 1->invalid

< bitmask if power is valid. 0->valid, 1->invalid

Definition at line 1092 of file redundancy.c.

◆ MRC_ValidateAfeMeasurement()

STD_RETURN_TYPE_e MRC_ValidateAfeMeasurement ( void )

Function to validate the measurement between redundant measurement values for cell voltage and cell temperature.

Returns: 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

Definition at line 1117 of file redundancy.c.

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◆ MRC_ValidatePackMeasurement()

STD_RETURN_TYPE_e MRC_ValidatePackMeasurement ( void )

Function to validate the measurements of pack values (string values, pack values)

Returns: 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

Definition at line 1158 of file redundancy.c.