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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58
From version 55.2
edited by Admin
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To version 24.2
edited by Admin
on 2025/02/24 12:17
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Summary

Details

Page properties
Content
... ... @@ -12,37 +12,35 @@
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 (after 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 (atfer 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**”  is used for starting-up and adjustment of the battery and will reset:
25 +The “Reset parameters” 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 +
31 31  === SOC estimation ===
32 32  
33 -The BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
35 +The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms:
34 34  
35 -The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
37 +* by open circuit voltage;
38 +* by voltage and current.
36 36  
37 -The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
40 +It is recommended to use the algorithm of calculation of SOC by voltage and current.
38 38  
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).
42 +To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
41 41  
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 -
46 46  [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]]
47 47  
48 48  The following estimation algorithms supported:
... ... @@ -64,27 +64,25 @@
64 64  
65 65  [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]]
66 66  
67 -In this section:
65 +The following battery Final SOC calculation methods are supported:
68 68  
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.
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.
87 87  
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 +
88 88  === SOC correction ===
89 89  
90 90  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"]]).
... ... @@ -212,11 +212,11 @@
212 212  * Enable – a flag to start calculation of the charge current limit;
213 213  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
214 214  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
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;
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;
216 216  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
217 217  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
218 218  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
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)
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;
220 220  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
221 221  * 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;
222 222  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -240,11 +240,11 @@
240 240  * Enable – a flag to start calculation of the discharge current limit;
241 241  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
242 242  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
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;
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;
244 244  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
245 245  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
246 246  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
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)
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;
248 248  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
249 249  * 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;
250 250  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -301,19 +301,14 @@
301 301  
302 302  To change the parameters of charging process status, select the "Control → Charging status" section:
303 303  
304 -[[image:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
300 +[[image:1740399071280-626.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
305 305  In this section:
306 306  
307 307  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
308 308  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
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;
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;
313 313  * 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;
317 317  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
318 318  
319 319  (% class="box infomessage" %)
... ... @@ -327,18 +327,13 @@
327 327  
328 328  To change the parameters of discharging process status, select the "Control → Discharging status" section:
329 329  
330 -[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
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:
331 331  
332 332  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
333 333  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
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;
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;
342 342  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
343 343  
344 344  === Precharge ===
... ... @@ -347,16 +347,12 @@
347 347  
348 348  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.
349 349  
336 +[[image:1740399150173-761.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
337 +
350 350  To change the parameters of precharge contactor, select the "Control → Precharge" section:
351 351  
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 -
356 356  * 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;
358 358  * 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;
360 360  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
361 361  * Relaxation between attempts – a duration between precharge attempts, millisecond;
362 362  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -424,15 +424,23 @@
424 424  ** Always on – charging is always allowed;
425 425  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
426 426  ** On charge request – charging is allowed when there is a signal “Charge request”;
427 -* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
409 +* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
410 +* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
428 428  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
429 429  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
430 -* Control the precharging contactor – a flag that allows control of the precharging contactor (see [[Precharge>>url:http://#HPrecharge]]);
431 431  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
432 -* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
433 433  * Custom delay: <error> – specific error delay, millisecond;
434 434  * Switch off the charging contactor on errors without delay – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”;
416 +* Control the precharging contactor – a flag that allows control of the precharging contactor;
417 +* 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;
418 +* 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;
419 +* 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.
435 435  
421 +(% class="box infomessage" %)
422 +(((
423 +Note – The allow charging contactor closes under two independent conditions: 1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
424 +)))
425 +
436 436  === Discharge ===
437 437  
438 438  The device controls the discharging contactor to connect battery to the load.
... ... @@ -439,36 +439,50 @@
439 439  
440 440  The device supports three algorithms to control battery discharging:
441 441  
442 -* Always on – load is always connected;
443 -* On charger disconnected – load is connected when there is no signal “Charger connected”;
444 -* On discharge request – load is connected when there is signal “Discharge request”.
432 +* load is always connected;
433 +* load is connected when there is no signal “Charger connected”;
434 +* load is connected when there is signal “Discharge request”.
445 445  
446 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
436 +When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
447 447  
448 -* Service reset
449 -* Power down request
450 -* Inhibit discharging
438 +* Undervoltage;
439 +* Overvoltage (optional);
440 +* Overcurrent;
441 +* High temperature (DCH);
442 +* Low temperature (DCH) (optional);
443 +* HYG offline (optional);
444 +* Combilift offline (optional);
445 +* Spirit offline (optional);
446 +* Spirit charger error (optional);
447 +* Short circuit (optional);
448 +* High contactor temperature (optional);
449 +* DCH contactor cycles error;
450 +* Critical error
451 451  
452 452  the discharging contactor opens.
453 453  
454 -If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
454 +If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:
455 455  
456 -* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
457 -* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
456 +* if there is no signal “Charger connected”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
457 +* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
458 458  
459 -When the "**On discharge request**" algorithm selected, the control is performed as follows:
459 +When the "**On Discharge request**" algorithm selected, the control is performed as follows:
460 460  
461 -* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
462 -* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
461 +* if there is signal “Discharge request”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
462 +* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
463 463  
464 464  (% class="box infomessage" %)
465 465  (((
466 -**Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
466 +Note: in case of errors in the system operation, the opening of the **discharging **contactor is performed either immediately or with a delay T,,off,, (depends on the settings described below).
467 467  )))
468 468  
469 +The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
470 +
471 +When the power down request occurs, the discharging contactor opens after delay T,,off,,. Reclosing the discharging contactor is performed if the power down request is removed.
472 +
469 469  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
470 470  
471 -[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
475 +[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
472 472  
473 473  In this section:
474 474  
... ... @@ -477,51 +477,28 @@
477 477  ** Always on – load is always connected;
478 478  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
479 479  ** On discharge request – load is connected when there is signal “Discharge request”;
480 -* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
484 +* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
485 +* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
481 481  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
482 482  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
483 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>path:#HPrecharge]]);
484 -* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
485 485  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
486 486  * Custom delay: <error> – specific error delay, millisecond;
487 487  * Switch off the discharging contactor on errors without delay – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”.
491 +* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
492 +* 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;
493 +* 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;
488 488  
489 489  === Charge/Discharge ===
490 490  
491 491  The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
492 492  
493 -Charge/Discharge contactor has three algorithms of operation:
499 +The charging/discharging contactor combines algorithms of charging and discharging contactor. It behaves as a charging contactor when «Charge request» or «Charger connected» are set, otherwise – as a discharging contactor.
494 494  
495 -* Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
496 -* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
497 -* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs.
498 -
499 -TBA
500 -
501 -(% class="box infomessage" %)
502 -(((
503 -**Note: **when errors occur in the system, the **Charge/Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
504 -)))
505 -
506 506  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
507 507  
508 -[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
503 +[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
509 509  
510 -In this section:
511 -
512 512  * Enable – a flag to enable the charge/discharge controller.
513 -* Algorithm:
514 -** Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
515 -** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
516 -** Independent (on Charge request or Discharge request);
517 -* Delay before starting charging or discharging, millisecond;
518 -* Delay before stopping charging or discharging, millisecond;
519 -* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
520 -* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
521 -* Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes;
522 -* Errors 1, 2 which affect the contactor only if battery CHARGING is detected – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND;
523 -* Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND;
524 -* Switch off the charging/discharging contactor on errors without delay – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”.
525 525  
526 526  === Discharge (AUX) ===
527 527  
... ... @@ -537,8 +537,8 @@
537 537  
538 538  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
539 539  
521 +[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
540 540  
541 -[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
542 542  In this section:
543 543  
544 544  * Enable – a flag to activate the auxiliary discharge control;
... ... @@ -545,46 +545,37 @@
545 545  * Switch off the discharging (AUX) contactor if the SOC is too low;
546 546  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
547 547  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
548 -* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
549 -* Minimum cell voltage, V;
550 -* Maximum cell voltage, V;
551 551  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
552 -* Minimum battery voltage, V;
553 -* Maximum battery voltage, V;
554 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
530 +* Minimum voltage – minimum battery voltage, V;
531 +* Maximum voltage – maximum battery voltage, V;
532 +* Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error.
555 555  
534 +=== ===
535 +
556 556  === Cell balancing ===
557 557  
558 -Balancing makes the voltage of all cells equal to the minimum cell voltage.
538 +Balancing makes the voltage of all cells be equal to the minimum cell voltage.
559 559  
560 560  The following balancing rules are supported:
561 561  
562 -* when the battery is charging (current I > 0) and time after until the battery is relaxed;
542 +* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
563 563  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
564 564  * always (regardless of battery state).
565 565  
566 -A balancing resistor is connected to the cell if the following conditions are simultaneously met:
546 +A balancing resistor is connected to the cell if:
567 567  
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;
548 +* the voltage on the cell is higher than the starting voltage of the balancing;
549 +* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
570 570  
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 -
576 576  (% class="box infomessage" %)
577 577  (((
578 -If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
553 +If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
579 579  )))
580 580  
581 -The 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.
582 -
583 -BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
584 -
585 585  To change the cell balancing parameters, select the "Control → Cell balancing" section:
586 586  
587 -[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
558 +[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
559 +
588 588  In this section:
589 589  
590 590  * Enable – a flag to enable cell balancing;
... ... @@ -592,15 +592,11 @@
592 592  ** Balance on charge;
593 593  ** Balance on charge or relaxed;
594 594  ** Balance always;
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;
567 +
568 +[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
569 +
598 598  * Minimum cell voltage to start balancing, 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.
571 +* Balancing deviation, V.
604 604  
605 605  === Power down ===
606 606  
... ... @@ -615,28 +615,28 @@
615 615  
616 616  To change the parameters of the power down control, select the "Control → Power down" section:
617 617  
618 -[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
586 +[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
587 +
619 619  In this section:
620 620  
621 621  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
622 622  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
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.
592 +* 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.
625 625  
626 626  === Heater ===
627 627  
628 628  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
629 629  
630 -[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
598 +[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
599 +
631 631  In this section:
632 632  
633 633  * Enable – a flag to enable heater control;
634 634  * Minimum cell temperature, °C;
635 635  * Tolerant cell temperature, °C;
636 -* Start the heater only if "Charger connected" signal is set;
637 637  * Delay before starting the heater, millisecond;
638 638  * Delay before stopping the heater, millisecond;
639 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
607 +* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
640 640  
641 641  As a result of operating the heating algorithm, the “Heater” signal is generated.
642 642  
... ... @@ -657,8 +657,8 @@
657 657  
658 658  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
659 659  
628 +[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
660 660  
661 -[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
662 662  In this section:
663 663  
664 664  * Enable – a flag to enable cooler control;
... ... @@ -666,7 +666,7 @@
666 666  * Tolerant cell temperature, °C;
667 667  * Delay before starting the cooler, millisecond;
668 668  * Delay before stopping the cooler, millisecond;
669 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler.
637 +* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
670 670  
671 671  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
672 672  
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