Header for the driver for balancing. More...

#include "bal_cfg.h"
#include "database.h"

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Data Structures
struct	BAL_STATE_s

Enumerations
enum	BAL_STATEMACH_e { BAL_STATEMACH_UNINITIALIZED , BAL_STATEMACH_INITIALIZATION , BAL_STATEMACH_INITIALIZED , BAL_STATEMACH_CHECK_BALANCING , BAL_STATEMACH_BALANCE , BAL_STATEMACH_NO_BALANCING , BAL_STATEMACH_ALLOWBALANCING , BAL_STATEMACH_GLOBALDISABLE , BAL_STATEMACH_GLOBALENABLE , BAL_STATEMACH_UNDEFINED , BAL_STATEMACH_RESERVED1 , BAL_STATEMACH_ERROR }

enum	BAL_STATEMACH_SUB_e { BAL_ENTRY , BAL_CHECK_IMBALANCES , BAL_COMPUTE_IMBALANCES , BAL_ACTIVATE_BALANCING , BAL_CHECK_LOWEST_VOLTAGE , BAL_CHECK_CURRENT }

enum	BAL_STATE_REQUEST_e { BAL_STATE_INIT_REQUEST , BAL_STATE_ERROR_REQUEST , BAL_STATE_NO_BALANCING_REQUEST , BAL_STATE_ALLOWBALANCING_REQUEST , BAL_STATE_GLOBAL_DISABLE_REQUEST , BAL_STATE_GLOBAL_ENABLE_REQUEST , BAL_STATE_NO_REQUEST }

enum	BAL_RETURN_TYPE_e { BAL_OK , BAL_BUSY_OK , BAL_REQUEST_PENDING , BAL_ILLEGAL_REQUEST , BAL_INIT_ERROR , BAL_OK_FROM_ERROR , BAL_ERROR , BAL_ALREADY_INITIALIZED , BAL_ILLEGAL_TASK_TYPE }

Functions
void	BAL_SaveLastStates (BAL_STATE_s *pBalancingState)
	Saves the last state and the last substate. More...

uint8_t	BAL_CheckReEntrance (BAL_STATE_s *currentState)
	re-entrance check of BAL state machine trigger function More...

BAL_STATE_REQUEST_e	BAL_TransferStateRequest (BAL_STATE_s *currentState)
	transfers the current state request to the state machine. More...

BAL_RETURN_TYPE_e	BAL_CheckStateRequest (BAL_STATE_s *pCurrentState, BAL_STATE_REQUEST_e stateRequest)
	checks the state requests that are made. More...

void	BAL_ProcessStateUninitalized (BAL_STATE_s *pCurrentState, BAL_STATE_REQUEST_e stateRequest)
	Substate handling function for BAL_Trigger() More...

void	BAL_ProcessStateInitialization (BAL_STATE_s *currentState)
	State machine subfunction to initialize the balancing state machine. More...

void	BAL_ProcessStateInitialized (BAL_STATE_s *currentState)
	State machine subfunction to transfer from an initalized state to "running" states of th state machine. More...

STD_RETURN_TYPE_e	BAL_Init (DATA_BLOCK_BALANCING_CONTROL_s *pControl)
	Generic initialization function for the balancing module. More...

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

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

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

Detailed Description

Header for the driver for balancing.

Copyright: © 2010 - 2022, 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:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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: 2020-02-24 (date of creation)

Updated: 2022-05-30 (date of last update)

Version: v1.3.0

Prefix: BAL

Definition in file bal.h.

Enumeration Type Documentation

◆ BAL_RETURN_TYPE_e

enum BAL_RETURN_TYPE_e

Possible return values when state requests are made to the BAL statemachine

Enumerator
BAL_OK	BAL --> ok
BAL_BUSY_OK	BAL busy
BAL_REQUEST_PENDING	requested to be executed
BAL_ILLEGAL_REQUEST	Request can not be executed
BAL_INIT_ERROR	Error state: Source: Initialization
BAL_OK_FROM_ERROR	Return from error --> ok
BAL_ERROR	General error state
BAL_ALREADY_INITIALIZED	Initialization of BAL already finished
BAL_ILLEGAL_TASK_TYPE	Illegal

Definition at line 113 of file bal.h.

◆ BAL_STATE_REQUEST_e

enum BAL_STATE_REQUEST_e

State requests for the BAL statemachine

Enumerator
BAL_STATE_INIT_REQUEST
BAL_STATE_ERROR_REQUEST
BAL_STATE_NO_BALANCING_REQUEST
BAL_STATE_ALLOWBALANCING_REQUEST
BAL_STATE_GLOBAL_DISABLE_REQUEST
BAL_STATE_GLOBAL_ENABLE_REQUEST
BAL_STATE_NO_REQUEST	default state: no request to the statemachine

Definition at line 100 of file bal.h.

◆ BAL_STATEMACH_e

enum BAL_STATEMACH_e

States of the BAL state machine

Enumerator
BAL_STATEMACH_UNINITIALIZED
BAL_STATEMACH_INITIALIZATION
BAL_STATEMACH_INITIALIZED
BAL_STATEMACH_CHECK_BALANCING
BAL_STATEMACH_BALANCE
BAL_STATEMACH_NO_BALANCING
BAL_STATEMACH_ALLOWBALANCING
BAL_STATEMACH_GLOBALDISABLE
BAL_STATEMACH_GLOBALENABLE
BAL_STATEMACH_UNDEFINED	undefined state
BAL_STATEMACH_RESERVED1	reserved state
BAL_STATEMACH_ERROR	Error-State:

Definition at line 69 of file bal.h.

◆ BAL_STATEMACH_SUB_e

enum BAL_STATEMACH_SUB_e

Substates of the BAL state machine

Enumerator
BAL_ENTRY	Substate entry state
BAL_CHECK_IMBALANCES	Check if balancing has been initialized
BAL_COMPUTE_IMBALANCES	Compute imbalances
BAL_ACTIVATE_BALANCING	Activated balancing resistors
BAL_CHECK_LOWEST_VOLTAGE	Check if lowest voltage is still above limit
BAL_CHECK_CURRENT	Check if current is still under limit

Definition at line 88 of file bal.h.

Function Documentation

◆ BAL_CheckReEntrance()

uint8_t BAL_CheckReEntrance ( BAL_STATE_s * currentState )

re-entrance check of BAL state machine trigger function

This function is not re-entrant and should only be called time- or event-triggered. It increments the triggerentry counter from the state variable. It should never be called by two different processes, so if it is the case, triggerentry should never be higher than 0 when this function is called.

Returns: 0 if no further instance of the function is active, 0xff otherwise

Definition at line 84 of file bal.c.

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◆ BAL_CheckStateRequest()

BAL_RETURN_TYPE_e BAL_CheckStateRequest	(	BAL_STATE_s *	pCurrentState,
		BAL_STATE_REQUEST_e	stateRequest
	)

checks the state requests that are made.

This function checks the validity of the state requests. The results of the checked is returned immediately.

Parameters

pCurrentState	pointer to the current state
stateRequest	state request to be checked

Returns: result of the state request that was made

Definition at line 113 of file bal.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 308 of file bal_strategy_history.c.

◆ BAL_Init()

STD_RETURN_TYPE_e BAL_Init ( DATA_BLOCK_BALANCING_CONTROL_s * pControl )

Generic initialization function for the balancing module.

Definition at line 148 of file bal.c.

◆ BAL_ProcessStateInitialization()

void BAL_ProcessStateInitialization ( BAL_STATE_s * currentState )

State machine subfunction to initialize the balancing state machine.

TODO

Definition at line 171 of file bal.c.

◆ BAL_ProcessStateInitialized()

void BAL_ProcessStateInitialized ( BAL_STATE_s * currentState )

State machine subfunction to transfer from an initalized state to "running" states of th state machine.

TODO

Definition at line 179 of file bal.c.

◆ BAL_ProcessStateUninitalized()

void BAL_ProcessStateUninitalized	(	BAL_STATE_s *	pCurrentState,
		BAL_STATE_REQUEST_e	stateRequest
	)

Substate handling function for BAL_Trigger()

Parameters

pCurrentState	pointer to the current state
stateRequest	state request to set

Definition at line 157 of file bal.c.

◆ BAL_SaveLastStates()

void BAL_SaveLastStates ( BAL_STATE_s * pBalancingState )

Saves the last state and the last substate.

Definition at line 70 of file bal.c.

◆ 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 312 of file bal_strategy_history.c.

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◆ BAL_TransferStateRequest()

BAL_STATE_REQUEST_e BAL_TransferStateRequest ( BAL_STATE_s * currentState )

transfers the current state request to the state machine.

This function takes the current state request from current state and transfers it to the state machine. It resets the value from to BAL_STATE_NO_REQUEST

Returns: current state request

Definition at line 100 of file bal.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 326 of file bal_strategy_history.c.

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Data Structures

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

◆ BAL_RETURN_TYPE_e

◆ BAL_STATE_REQUEST_e

◆ BAL_STATEMACH_e

◆ BAL_STATEMACH_SUB_e

Function Documentation

◆ BAL_CheckReEntrance()

◆ BAL_CheckStateRequest()

◆ BAL_GetInitializationState()

◆ BAL_Init()

◆ BAL_ProcessStateInitialization()

◆ BAL_ProcessStateInitialized()

◆ BAL_ProcessStateUninitalized()

◆ BAL_SaveLastStates()

◆ BAL_SetStateRequest()

◆ BAL_TransferStateRequest()

◆ BAL_Trigger()