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Changes for page 3.3 Control

Last modified by Admin on 2025/12/11 10:32
From version 63.2
edited by Admin
on 2025/10/14 09:57
Change comment: There is no comment for this version
To version 40.1
edited by Admin
on 2025/02/17 17:25
Change comment: There is no comment for this version

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... ... @@ -21,7 +21,7 @@
21 21  ** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery;
22 22  ** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS.
23 23  
24 -The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
24 +The values “Capacity”, “Resistance”, “Cycles” are used to calculate the SOC of cells and the battery.
25 25  
26 26  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.
27 27  
... ... @@ -71,7 +71,7 @@
71 71  * Minimal SOC – the battery SOC is assumed to be the minimum SOC among the cells;
72 72  * Average SOC – the battery SOC is taken equal to the arithmetic average of the cell SOC;
73 73  * 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;
74 -* 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.
74 +* 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;
75 75  
76 76  Other parameters:
77 77  
... ... @@ -213,11 +213,11 @@
213 213  * Enable – a flag to start calculation of the charge current limit;
214 214  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
215 215  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
216 -* 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;
216 +* 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;
217 217  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
218 218  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
219 219  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
220 -* 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)
220 +* 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;
221 221  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
222 222  * 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;
223 223  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -241,11 +241,11 @@
241 241  * Enable – a flag to start calculation of the discharge current limit;
242 242  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
243 243  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
244 -* 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;
244 +* 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;
245 245  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
246 246  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
247 247  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
248 -* 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)
248 +* 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;
249 249  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
250 250  * 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;
251 251  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -315,7 +315,8 @@
315 315  The Main contactor algorithm supports the following modes:
316 316  
317 317  * Always on;
318 -* Automatic.
318 +* Automatic;
319 +* On demand.
319 319  
320 320  In “Always on” mode main contactor closes if all the following is true:
321 321  
... ... @@ -356,17 +356,13 @@
356 356  
357 357  To change the parameters of charging process status, select the "Control → Charging status" section:
358 358  
359 -[[image:1760435790050-496.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
360 +[[image:1735064935499-941.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]In this section:
360 360  
361 -In this section:
362 -
363 363  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
364 364  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
365 -* 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;
366 -* 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;
367 -* Treat negative currents as zero currents for generating the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal at discharging current;
364 +* 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;
365 +* 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;
368 368  * 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;
369 -* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable
370 370  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
371 371  
372 372  (% class="box infomessage" %)
... ... @@ -380,15 +380,12 @@
380 380  
381 381  To change the parameters of discharging process status, select the "Control → Discharging status" section:
382 382  
383 -[[image:1760435802140-274.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="129" width="800"]]
380 +[[image:1735064980481-209.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]In this section:
384 384  
385 -In this section:
386 -
387 387  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
388 388  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
389 -* 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;
390 -* 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;
391 -* Treat positive currents as zero currents for generating the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal at charging current;
384 +* 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;
385 +* 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;
392 392  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
393 393  
394 394  === Precharge ===
... ... @@ -401,14 +401,12 @@
401 401  
402 402  To change the parameters of precharge contactor, select the "Control → Precharge" section:
403 403  
404 -[[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
398 +[[image:1735065073836-743.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
405 405  
406 406  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
407 407  * Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
408 408  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
409 -* 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;
410 410  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
411 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
412 412  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
413 413  * Relaxation between attempts – a duration between precharge attempts, millisecond;
414 414  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -480,7 +480,7 @@
480 480  * Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
481 481  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
482 482  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
483 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
475 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor;
484 484  * Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
485 485  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
486 486  * Custom delay: <error> – delay for specific error, millisecond;
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519 519  **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).
520 520  )))
521 521  
514 +The device supports controlling the precharging contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]).
515 +
522 522  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
523 523  
524 524  [[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]]
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533 533  * Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
534 534  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
535 535  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
536 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
530 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor;
537 537  * Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
538 538  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
539 539  * Custom delay: <error> – specific error delay, millisecond;
... ... @@ -588,6 +588,11 @@
588 588  * the battery voltage is out of range;
589 589  * the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
590 590  
585 +(% class="box infomessage" %)
586 +(((
587 +**Note: **when errors occur in the system, the **Discharge (AUX) **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
588 +)))
589 +
591 591  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
592 592  
593 593  [[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
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604 604  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
605 605  * Minimum battery voltage, V;
606 606  * Maximum battery voltage, V;
607 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
606 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor;
608 608  
609 609  === Cell balancing ===
610 610  
... ... @@ -623,13 +623,10 @@
623 623  
624 624  A balancing resistor is disconnected from the cell if any of the following conditions are met:
625 625  
626 -* the voltage on the cell is less than the balancing stop voltage;
625 +* the voltage on the cell is less than the balancing start voltage;
627 627  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
628 628  
629 -(% class="box infomessage" %)
630 -(((
631 631  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
632 -)))
633 633  
634 634  The BMS Main 3 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.
635 635  
... ... @@ -646,6 +646,9 @@
646 646  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
647 647  ** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states);
648 648  ** Balance always – balancing is always performed regardless the battery state;
645 +
646 +[[image:1735065666891-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="800"]]
647 +
649 649  * Balancing condition:
650 650  ** Automatic – balancing will be performed automatically if needed conditions are met;
651 651  ** 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;
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