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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58
From version 28.2
edited by Admin
on 2025/02/24 13:44
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To version 55.3
edited by Admin
on 2026/04/30 15:42
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -12,35 +12,37 @@
12 12  
13 13  In this section:
14 14  
15 -* Cell capacity – nominal capacity of cells, Ah;
16 -* Cell resistance – nominal (maximum) internal resistance of the cell, Ohm;
17 -* Relax time (after charging) – a relaxation time after charging, second;
18 -* Relax time (atfer discharging) – the relaxation time after discharging, second;
19 -* Reset parameters– a command to reset cells state of charge, capacity, and resistance.
15 +* **Cell capacity** – nominal capacity of cells, Ah;
16 +* **Cell resistance** – nominal (maximum) internal resistance of the cell, Ohm;
17 +* **Relax time (after charging)** – a relaxation time after charging, second;
18 +* **Relax time (after discharging)** – the relaxation time after discharging, second;
19 +* **Reset parameters **– a command to reset cells state of charge, capacity, and resistance.
20 20  
21 -The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
21 +The values “**Capacity**” and “**Resistance**” are used to calculate the SOC of cells and the battery.
22 22  
23 -The values of “Relax time” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
23 +The values of “**Relax time**” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
24 24  
25 -The “Reset parameters” will reset:
25 +The “**Reset parameters**”  is used for starting-up and adjustment of the battery and will reset:
26 26  
27 27  * state of charge (new cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section);
28 28  * cell resistance to “Cell resistance” value;
29 29  * battery capacity to “Cell capacity” value.
30 30  
31 -The “Reset parameters” command is used for starting-up and adjustment of the battery.
32 -
33 33  === SOC estimation ===
34 34  
35 -The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms:
33 +The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
36 36  
37 -* by open circuit voltage;
38 -* by voltage and current.
35 +The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
39 39  
40 -It is recommended to use the algorithm of calculation of SOC by voltage and current.
37 +The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
41 41  
42 -To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
39 +* if I = 0, the battery is in the state of relaxation and the cell voltage Uocv is outside the [U,,ocv[point 1],,; U,,ocv[point 2],,], the SOC calculation is based on the tabular dependency Uocv = Uocv(SOC, t °C);
40 +* in any other cases, the SOC value is proportional to the charge (coulomb) passed through the battery (current time integral).
43 43  
42 +The **“Current and voltage (enhanced)” **SOC calculation algorithm differs from the simplified algorithm by online correction of the effective capacity. When using this algorithm, it is necessary to fine tune the tabular dependence Uocv = Uocv (SOC, t °C).
43 +
44 +To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section:
45 +
44 44  [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]]
45 45  
46 46  The following estimation algorithms supported:
... ... @@ -62,28 +62,30 @@
62 62  
63 63  [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]]
64 64  
65 -The following battery Final SOC calculation methods are supported:
67 +In this section:
66 66  
67 -* Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules;
68 -* Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules;
69 -* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell has 100% SOC, b) 0% if any cell has 0% SOC;
70 -* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC.
69 +* **Algorithm:**
70 +** **Voltage **– by open circuit voltage;
71 +** **Current and voltage (simplified)** – recommended for LFP cells;
72 +** **Current and voltage (enhanced)** – recommended for NMC cells:
73 +* **Final SOC** – method of calculating overall SOC of battery:
74 +** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells;
75 +** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC;
76 +** **Min-Max SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells (recommended). Final SOC will be a) 100% if __any cell__ has 100% SOC, b) 0% if __any cell__ has 0% SOC;
77 +** **Max-Min SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if __all cells__ have 100% SOC, b) 0% if __all// //cells__ have 0% SOC.
78 +* **Scale the final SOC** – a flag to scale the battery SOC by the following values;
79 +* **SOC corresponding to 0%** – the battery SOC that sets to be 0%;
80 +* **SOC corresponding to 100%** – the battery SOC that sets to be 100%.
81 +* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
82 +* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
83 +** **Linear zone: point 1** – starting point of the Uocv linear zone;
84 +** **Linear zone: point 2** – ending point of the Uocv linear zone;
85 +* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature;
86 +* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles.
71 71  
72 -Other parameters:
73 -
74 -* Scale the final SOC – a flag to scale the battery SOC by the following values;
75 -* SOC corresponding to 0% – the battery SOC that sets to be 0%;
76 -* SOC corresponding to 100% – the battery SOC that sets to be 100%.
77 -* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
78 -* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
79 -** Linear zone: point 1 – starting point of the Uocv linear zone;
80 -** Linear zone: point 2 – ending point of the Uocv linear zone;
81 -* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
82 -* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
83 -
84 84  === SOC correction ===
85 85  
86 -The BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
90 +The BMS Mini S / BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
87 87  
88 88  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
89 89  
... ... @@ -91,12 +91,12 @@
91 91  
92 92  In this section:
93 93  
94 -* Enable – a flag to enable SOC correction;
95 -* Shutdown period – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
96 -* Correction period – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
97 -* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
98 -* Ignore the linear zone – a flag to ignore linear SOC zone while correction;
99 -* Last correction timestamp – time when last correction was made.
98 +* **Enable **– a flag to enable the SOC correction;
99 +* **Shutdown period** – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
100 +* **Correction period** – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
101 +* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
102 +* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 +* **Last correction timestamp** – time when last correction was made.
100 100  
101 101  === Resistance estimation ===
102 102  
... ... @@ -130,11 +130,11 @@
130 130  
131 131  In this section:
132 132  
133 -* Current stabilization time, millisecond;
134 -* Maximum calculation period – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
135 -* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
136 -* Minimum SOC – minimum cell SOC value for resistance calculation;
137 -* Maximum SOC – maximum cell SOC value for resistance calculation.
137 +* **Current stabilization time**, millisecond;
138 +* **Maximum calculation period** – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
139 +* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell;
140 +* **Minimum SOC** – minimum cell SOC value for resistance calculation;
141 +* **Maximum SOC** – maximum cell SOC value for resistance calculation.
138 138  
139 139  The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
140 140  
... ... @@ -146,12 +146,12 @@
146 146  
147 147  In this section:
148 148  
149 -* Enable – a flag to enable signal generation;
150 -* Minimum SOC, %;
151 -* Tolerant SOC, %;
152 -* Delay before setting the signal, second;
153 -* Delay before clearing the signal, second;
154 -* Lock – lock the signal until the device is reset.
153 +* **Enable **– a flag to enable signal generation;
154 +* **Minimum SOC**, %;
155 +* **Tolerant SOC**, %;
156 +* **Delay before setting the signal**, second;
157 +* **Delay before clearing the signal**, second;
158 +* **Lock** – lock the signal until the device is reset.
155 155  
156 156  Signal generation conditions:
157 157  
... ... @@ -196,7 +196,7 @@
196 196  
197 197  === Charge map ===
198 198  
199 -The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
203 +The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
200 200  
201 201  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
202 202  
... ... @@ -208,11 +208,11 @@
208 208  * Enable – a flag to start calculation of the charge current limit;
209 209  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
210 210  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
211 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on SOC and battery temperature;
215 +* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
212 212  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
213 213  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
214 214  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
215 -* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on maximum cell voltage;
219 +* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
216 216  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
217 217  * Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
218 218  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -223,7 +223,7 @@
223 223  
224 224  === Discharge map ===
225 225  
226 -The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
230 +The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
227 227  
228 228  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
229 229  
... ... @@ -236,11 +236,11 @@
236 236  * Enable – a flag to start calculation of the discharge current limit;
237 237  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
238 238  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
239 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on SOC and temperature;
243 +* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
240 240  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
241 241  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
242 242  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
243 -* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on minimum cell voltage;
247 +* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
244 244  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
245 245  * Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
246 246  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -251,7 +251,7 @@
251 251  
252 252  === Main contactor ===
253 253  
254 -The BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
258 +The BMS Mini S / BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
255 255  
256 256  The Main contactor algorithm supports the following modes:
257 257  
... ... @@ -297,14 +297,19 @@
297 297  
298 298  To change the parameters of charging process status, select the "Control → Charging status" section:
299 299  
300 -[[image:1740399071280-626.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
304 +[[image:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
301 301  In this section:
302 302  
303 303  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
304 304  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
305 -* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
306 -* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
309 +* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
310 +* Use actual voltage to generate the "Ready to charge" signal if the current is negative – a flag to disable voltage correction for "Ready to charge" signal only at discharging current;
311 +* Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
312 +* Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
307 307  * Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
314 +* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
315 +* Charge current limit to clear the 'Ready to charge' – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
316 +* Charge current limit to set the 'Ready to charge' – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
308 308  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
309 309  
310 310  (% class="box infomessage" %)
... ... @@ -318,13 +318,18 @@
318 318  
319 319  To change the parameters of discharging process status, select the "Control → Discharging status" section:
320 320  
321 -[[image:1740399096018-240.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
322 -In this section:
330 +[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
323 323  
324 324  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
325 325  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
326 -* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
327 -* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
334 +* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal;
335 +* Use actual voltage to generate the "Ready to discharge" signal if the current is positive – a flag to disable voltage correction for "Ready to discharge" signal only at charging current;
336 +* Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
337 +* Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
338 +* Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
339 +* Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
340 +* Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
341 +* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
328 328  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
329 329  
330 330  === Precharge ===
... ... @@ -333,12 +333,16 @@
333 333  
334 334  BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. Also BMS can measure the power dissipated on precharge resistor and generate an error if it greater than configured limit.
335 335  
336 -[[image:1740399150173-761.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
337 -
338 338  To change the parameters of precharge contactor, select the "Control → Precharge" section:
339 339  
352 +[[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]]
353 +
354 +In this section:
355 +
340 340  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
357 +* Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
341 341  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
359 +* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
342 342  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
343 343  * Relaxation between attempts – a duration between precharge attempts, millisecond;
344 344  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -470,7 +470,7 @@
470 470  
471 471  === Charge/Discharge ===
472 472  
473 -The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
491 +The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
474 474  
475 475  Charge/Discharge contactor has three algorithms of operation:
476 476  
... ... @@ -507,7 +507,7 @@
507 507  
508 508  === Discharge (AUX) ===
509 509  
510 -The BMS Mini device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
528 +The BMS Mini S / BMS Mini device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
511 511  
512 512  The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program.
513 513  
... ... @@ -537,27 +537,35 @@
537 537  
538 538  === Cell balancing ===
539 539  
540 -Balancing makes the voltage of all cells be equal to the minimum cell voltage.
558 +Balancing makes the voltage of all cells equal to the minimum cell voltage.
541 541  
542 542  The following balancing rules are supported:
543 543  
544 -* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
562 +* when the battery is charging (current I > 0) and time after until the battery is relaxed;
545 545  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
546 546  * always (regardless of battery state).
547 547  
548 -A balancing resistor is connected to the cell if:
566 +A balancing resistor is connected to the cell if the following conditions are simultaneously met:
549 549  
550 -* the voltage on the cell is higher than the starting voltage of the balancing;
551 -* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
568 +* the voltage on the cell is higher than the balancing start voltage;
569 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
552 552  
571 +A balancing resistor is disconnected from the cell if any of the following conditions are met:
572 +
573 +* the voltage on the cell is less than the balancing stop voltage;
574 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
575 +
553 553  (% class="box infomessage" %)
554 554  (((
555 -If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
578 +If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
556 556  )))
557 557  
558 -To change the cell balancing parameters, select the "Control → Cell balancing" section:
581 +The BMS Mini S / BMS Mini device can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
559 559  
583 +BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
560 560  
585 +To change the cell balancing parameters, select the "Control → Cell balancing" section:
586 +
561 561  [[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
562 562  In this section:
563 563  
... ... @@ -566,15 +566,19 @@
566 566  ** Balance on charge;
567 567  ** Balance on charge or relaxed;
568 568  ** Balance always;
569 -
570 -[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
571 -
595 +* Balancing condition:
596 +** Automatic – balancing will be performed automatically if needed conditions are met;
597 +** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
572 572  * Minimum cell voltage to start balancing, V;
573 -* Balancing deviation, V.
599 +* Voltage deviation to start balancing;
600 +* Voltage deviation to stop balancing;
601 +* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
602 +* Maximum allowable temperature of the board, ºC;
603 +* Command to discharge all cells – a flag to force the balancing of all cells.
574 574  
575 575  === Power down ===
576 576  
577 -The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
607 +The BMS Mini S / BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
578 578  
579 579  Shutting down the battery system is performed according to the following conditions:
580 580  
... ... @@ -581,32 +581,32 @@
581 581  * the battery voltage is below the minimum level;
582 582  * the “Charger connected” signal is cleared for 60 seconds.
583 583  
584 -The BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
614 +The BMS Mini S / BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
585 585  
586 586  To change the parameters of the power down control, select the "Control → Power down" section:
587 587  
588 -[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
589 -
618 +[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
590 590  In this section:
591 591  
592 592  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
593 593  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
594 -* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS.
623 +* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS;
624 +* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms.
595 595  
596 596  === Heater ===
597 597  
598 598  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
599 599  
600 -[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
601 -
630 +[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
602 602  In this section:
603 603  
604 604  * Enable – a flag to enable heater control;
605 605  * Minimum cell temperature, °C;
606 606  * Tolerant cell temperature, °C;
636 +* Start the heater only if "Charger connected" signal is set;
607 607  * Delay before starting the heater, millisecond;
608 608  * Delay before stopping the heater, millisecond;
609 -* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
639 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
610 610  
611 611  As a result of operating the heating algorithm, the “Heater” signal is generated.
612 612  
... ... @@ -627,8 +627,8 @@
627 627  
628 628  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
629 629  
630 -[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
631 631  
661 +[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
632 632  In this section:
633 633  
634 634  * Enable – a flag to enable cooler control;
... ... @@ -636,7 +636,7 @@
636 636  * Tolerant cell temperature, °C;
637 637  * Delay before starting the cooler, millisecond;
638 638  * Delay before stopping the cooler, millisecond;
639 -* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
669 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler.
640 640  
641 641  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
642 642  
... ... @@ -657,7 +657,7 @@
657 657  
658 658  Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C), which is necessary for calculating the state of charge of the battery.
659 659  
660 -The BMS Mini device can automatically determine the battery discharge characteristic.
690 +The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
661 661  
662 662  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
663 663  
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