Driver for the Balancing module. More...

#include "bal_strategy_voltage.h"
#include "battery_cell_cfg.h"
#include "bms.h"
#include "database.h"
#include "os.h"
#include <stdbool.h>
#include <stdint.h>

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Functions
static bool	BAL_ActivateBalancing (void)
	Activates voltage based balancing. More...

static void	BAL_Deactivate (void)
	Deactivates voltage based balancing. More...

static void	BAL_ProcessStateCheckBalancing (BAL_STATE_REQUEST_e state_request)
	State machine subfunction to check if balancing is allowed. More...

static void	BAL_ProcessStateBalancing (BAL_STATE_REQUEST_e state_request)
	State machine subfunction to balance the battery cell. More...

STD_RETURN_TYPE_e	BAL_GetInitializationState (void)
	gets the initialization state. More...

BAL_RETURN_TYPE_e	BAL_SetStateRequest (BAL_STATE_REQUEST_e stateRequest)
	sets the current state request of the state variable bal_state. More...

void	BAL_Trigger (void)
	trigger function for the BAL driver state machine. More...

DATA_BLOCK_BALANCING_CONTROL_s *	TEST_BAL_GetBalancingControl (void)

BAL_STATE_s *	TEST_BAL_GetBalancingState (void)

BAL_STATEMACH_e	BAL_GetState (void)

Variables
static DATA_BLOCK_BALANCING_CONTROL_s	bal_balancing = {.header.uniqueId = DATA_BLOCK_ID_BALANCING_CONTROL}

static BAL_STATE_s	bal_state
	contains the state of the contactor state machine More...

Detailed Description

Driver for the Balancing module.

Copyright: © 2010 - 2023, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

SPDX-License-Identifier: BSD-3-Clause

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

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Author: foxBMS Team

Date: 2020-05-29 (date of creation)

Updated: 2023-10-12 (date of last update)

Version: v1.6.0

Prefix: BAL

Definition in file bal_strategy_voltage.c.

Function Documentation

◆ BAL_ActivateBalancing()

static bool BAL_ActivateBalancing ( void )

static

Activates voltage based balancing.

TODO

Definition at line 123 of file bal_strategy_voltage.c.

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◆ BAL_Deactivate()

static void BAL_Deactivate ( void )

static

Deactivates voltage based balancing.

The balancing state of all cells in all strings set to inactivate (that is 0) and the delta charge is set to 0 As. The balancing enable bit is deactivate (that is 0).

Definition at line 156 of file bal_strategy_voltage.c.

◆ BAL_GetInitializationState()

STD_RETURN_TYPE_e BAL_GetInitializationState ( void )

gets the initialization state.

This function is used for getting the balancing initialization state

Returns: STD_OK if initialized, otherwise STD_NOT_OK

Definition at line 278 of file bal_strategy_voltage.c.

◆ BAL_GetState()

BAL_STATEMACH_e BAL_GetState ( void )

Definition at line 358 of file bal_strategy_voltage.c.

◆ BAL_ProcessStateBalancing()

static void BAL_ProcessStateBalancing ( BAL_STATE_REQUEST_e state_request )

static

State machine subfunction to balance the battery cell.

TODO

Definition at line 191 of file bal_strategy_voltage.c.

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◆ BAL_ProcessStateCheckBalancing()

static void BAL_ProcessStateCheckBalancing ( BAL_STATE_REQUEST_e state_request )

static

State machine subfunction to check if balancing is allowed.

Checks if balancing is allowed. If it is it transfers in the actual balancing state.

Definition at line 170 of file bal_strategy_voltage.c.

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◆ BAL_SetStateRequest()

BAL_RETURN_TYPE_e BAL_SetStateRequest ( BAL_STATE_REQUEST_e stateRequest )

sets the current state request of the state variable bal_state.

This function is used to make a state request to the state machine, e.g, start voltage measurement, read result of voltage measurement, re-initialization. It calls BAL_CheckStateRequest() to check if the request is valid. The state request is rejected if is not valid. The result of the check is returned immediately, so that the requester can act in case it made a non-valid state request.

Parameters

stateRequest state request to set

Returns: current state request

Definition at line 282 of file bal_strategy_voltage.c.

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◆ BAL_Trigger()

void BAL_Trigger ( void )

trigger function for the BAL driver state machine.

This function contains the sequence of events in the BAL state machine. It must be called time-triggered, every 100 milliseconds.

Definition at line 296 of file bal_strategy_voltage.c.

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◆ TEST_BAL_GetBalancingControl()

DATA_BLOCK_BALANCING_CONTROL_s* TEST_BAL_GetBalancingControl ( void )

Definition at line 347 of file bal_strategy_voltage.c.

◆ TEST_BAL_GetBalancingState()

BAL_STATE_s* TEST_BAL_GetBalancingState ( void )

Definition at line 351 of file bal_strategy_voltage.c.

Variable Documentation

◆ bal_balancing

DATA_BLOCK_BALANCING_CONTROL_s bal_balancing = {.header.uniqueId = DATA_BLOCK_ID_BALANCING_CONTROL}

static

local storage of the DATA_BLOCK_BALANCING_CONTROL_s table

Definition at line 71 of file bal_strategy_voltage.c.

◆ bal_state

BAL_STATE_s bal_state

static

Initial value:

= {
    .timer                  = 0,
    .stateRequest           = BAL_STATE_NO_REQUEST,
    .state                  = BAL_STATEMACH_UNINITIALIZED,
    .substate               = BAL_ENTRY,
    .lastState              = BAL_STATEMACH_UNINITIALIZED,
    .lastSubstate           = 0,
    .triggerEntry           = 0,
    .errorRequestCounter    = 0,
    .initializationFinished = STD_NOT_OK,
    .active                 = false,
    .balancingThreshold     = BAL_DEFAULT_THRESHOLD_mV + BAL_HYSTERESIS_mV,
    .balancingAllowed       = true,
    .balancingGlobalAllowed = false,
}

contains the state of the contactor state machine

Definition at line 76 of file bal_strategy_voltage.c.

Functions

Variables

Detailed Description

Function Documentation

◆ BAL_ActivateBalancing()

◆ BAL_Deactivate()

◆ BAL_GetInitializationState()

◆ BAL_GetState()

◆ BAL_ProcessStateBalancing()

◆ BAL_ProcessStateCheckBalancing()

◆ BAL_SetStateRequest()

◆ BAL_Trigger()

◆ TEST_BAL_GetBalancingControl()

◆ TEST_BAL_GetBalancingState()

Variable Documentation

◆ bal_balancing

◆ bal_state