foxBMS - Unit Tests  1.2.1
The foxBMS Unit Tests API Documentation
soa_cfg.c
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41 
42 /**
43  * @file soa_cfg.c
44  * @author foxBMS Team
45  * @date 2020-10-14 (date of creation)
46  * @updated 2020-10-14 (date of last update)
47  * @ingroup APPLICATION_CONFIGURATION
48  * @prefix SOA
49  *
50  * @brief Configuration for safe-operating area check
51  *
52  */
53 
54 /*========== Includes =======================================================*/
55 #include "soa_cfg.h"
56 
57 #include "battery_cell_cfg.h"
58 #include "battery_system_cfg.h"
59 
60 /*========== Macros and Definitions =========================================*/
61 
62 /*========== Static Constant and Variable Definitions =======================*/
63 
64 /*========== Extern Constant and Variable Definitions =======================*/
65 
66 /*========== Static Function Prototypes =====================================*/
67 
68 /*========== Static Function Implementations ================================*/
69 
70 /*========== Extern Function Implementations ================================*/
71 bool SOA_IsPackCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection) {
72  bool currentLimitViolated = false;
73  /* Only check if battery is not at rest. No overcurrent possible if battery is resting */
74  if ((BMS_CHARGING == currentDirection) || (BMS_DISCHARGING == currentDirection)) {
75  if (current_mA > BS_MAXIMUM_PACK_CURRENT_mA) {
76  currentLimitViolated = true;
77  }
78  }
79  return currentLimitViolated;
80 }
81 
82 bool SOA_IsStringCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection) {
83  bool currentLimitViolated = false;
84  /* Only check if battery is not at rest. No overcurrent possible if battery is resting */
85  if ((BMS_CHARGING == currentDirection) || (BMS_DISCHARGING == currentDirection)) {
86  if (current_mA > BS_MAXIMUM_STRING_CURRENT_mA) {
87  currentLimitViolated = true;
88  }
89  }
90  return currentLimitViolated;
91 }
92 
93 bool SOA_IsCellCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection) {
94  bool currentLimitViolated = false;
95  /* Only check if battery is not at rest. No overcurrent possible if battery is resting */
96  if (BMS_CHARGING == currentDirection) {
98  currentLimitViolated = true;
99  }
100  } else if (BMS_DISCHARGING == currentDirection) {
102  currentLimitViolated = true;
103  }
104  } else {
105  /* BMS_RELAXATION or BMS_AT_REST */
106  currentLimitViolated = false;
107  }
108  return currentLimitViolated;
109 }
110 
111 bool SOA_IsCurrentOnOpenString(BMS_CURRENT_FLOW_STATE_e currentDirection, uint8_t stringNumber) {
112  FAS_ASSERT(stringNumber < BS_NR_OF_STRINGS);
113  bool currentOnOpenString = false;
114  /* Current is flowing as soon as a current direction detected */
115  if ((BMS_CHARGING == currentDirection) || (BMS_DISCHARGING == currentDirection)) {
116  const bool stringClosed = BMS_IsStringClosed(stringNumber);
117  const bool stringPrecharging = BMS_IsStringPrecharging(stringNumber);
118  /* String appears to be open */
119  if ((false == stringClosed) && (false == stringPrecharging)) {
120  currentOnOpenString = true;
121  }
122  }
123  return currentOnOpenString;
124 }
125 
126 /*========== Externalized Static Function Implementations (Unit Test) =======*/
Configuration of the battery cell (e.g., minimum and maximum cell voltage)
#define BC_CURRENT_MAX_DISCHARGE_MSL_mA
Maximum discharge current limit.
#define BC_CURRENT_MAX_CHARGE_MSL_mA
Maximum charge current limit.
Configuration of the battery system (e.g., number of battery modules, battery cells,...
#define BS_NR_OF_STRINGS
#define BS_MAXIMUM_PACK_CURRENT_mA
Maximum pack current limit in mA that is used in the SOA module to check for pack overcurrent.
#define BS_MAXIMUM_STRING_CURRENT_mA
Maximum string current limit in mA that is used in the SOA module to check for string overcurrent.
#define BS_NR_OF_PARALLEL_CELLS_PER_MODULE
number of battery cells in a parallel cell connection per battery module
bool BMS_IsStringPrecharging(uint8_t stringNumber)
Returns if string is currently precharging or not.
Definition: bms.c:1297
bool BMS_IsStringClosed(uint8_t stringNumber)
Returns string state (closed or open)
Definition: bms.c:1288
@ BMS_DISCHARGING
Definition: bms.h:67
@ BMS_CHARGING
Definition: bms.h:66
enum BMS_CURRENT_FLOW_STATE BMS_CURRENT_FLOW_STATE_e
#define FAS_ASSERT(x)
Assertion macro that asserts that x is true.
Definition: fassert.h:235
bool SOA_IsCurrentOnOpenString(BMS_CURRENT_FLOW_STATE_e currentDirection, uint8_t stringNumber)
Checks if string current is floating while contactors are open.
Definition: soa_cfg.c:111
bool SOA_IsPackCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection)
Checks if pack current limit is violated.
Definition: soa_cfg.c:71
bool SOA_IsStringCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection)
Checks if string current limit is violated.
Definition: soa_cfg.c:82
bool SOA_IsCellCurrentLimitViolated(uint32_t current_mA, BMS_CURRENT_FLOW_STATE_e currentDirection)
Checks if cell current limit is violated.
Definition: soa_cfg.c:93
Configuration header for SOA.