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Changes for page 3.3 Control

Last modified by Admin on 2025/12/11 10:32
From version 63.4
edited by Admin
on 2025/10/14 09:59
Change comment: There is no comment for this version
To version 38.1
edited by Admin
on 2025/02/12 15:36
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  
... ... @@ -356,19 +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 check of "Charging current limit" to generate the "Ready to charge" signal;
370 -* 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” (hence, the “Allow charging”) signal is cleared;
371 -* 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” (hence, the “Allow charging”) signal is cleared;
372 372  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
373 373  
374 374  (% class="box infomessage" %)
... ... @@ -382,15 +382,12 @@
382 382  
383 383  To change the parameters of discharging process status, select the "Control → Discharging status" section:
384 384  
385 -[[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:
386 386  
387 -In this section:
388 -
389 389  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
390 390  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
391 -* 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;
392 -* 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;
393 -* 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;
394 394  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
395 395  
396 396  === Precharge ===
... ... @@ -403,14 +403,12 @@
403 403  
404 404  To change the parameters of precharge contactor, select the "Control → Precharge" section:
405 405  
406 -[[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"]]
407 407  
408 408  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
409 409  * 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;
410 410  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
411 -* 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;
412 412  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
413 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
414 414  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
415 415  * Relaxation between attempts – a duration between precharge attempts, millisecond;
416 416  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -482,7 +482,7 @@
482 482  * Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
483 483  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
484 484  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
485 -* 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;
486 486  * Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
487 487  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
488 488  * Custom delay: <error> – delay for specific error, millisecond;
... ... @@ -521,6 +521,8 @@
521 521  **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).
522 522  )))
523 523  
514 +The device supports controlling the precharging contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]).
515 +
524 524  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
525 525  
526 526  [[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]]
... ... @@ -535,7 +535,7 @@
535 535  * Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
536 536  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
537 537  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
538 -* 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;
539 539  * Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
540 540  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
541 541  * Custom delay: <error> – specific error delay, millisecond;
... ... @@ -590,6 +590,11 @@
590 590  * the battery voltage is out of range;
591 591  * the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
592 592  
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 +
593 593  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
594 594  
595 595  [[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
... ... @@ -606,7 +606,7 @@
606 606  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
607 607  * Minimum battery voltage, V;
608 608  * Maximum battery voltage, V;
609 -* 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;
610 610  
611 611  === Cell balancing ===
612 612  
... ... @@ -621,22 +621,17 @@
621 621  A balancing resistor is connected to the cell if the following conditions are simultaneously met:
622 622  
623 623  * the voltage on the cell is higher than the balancing start voltage;
624 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
621 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold.
625 625  
626 626  A balancing resistor is disconnected from the cell if any of the following conditions are met:
627 627  
628 -* 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;
629 629  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
630 630  
631 -(% class="box infomessage" %)
632 -(((
633 633  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
634 -)))
635 635  
636 636  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.
637 637  
638 -BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value.
639 -
640 640  To change the cell balancing parameters, select the "Control → Cell balancing" section:
641 641  
642 642  [[image:1735065702806-422.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
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648 648  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
649 649  ** 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);
650 650  ** Balance always – balancing is always performed regardless the battery state;
643 +
644 +[[image:1735065666891-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="800"]]
645 +
651 651  * Balancing condition:
652 652  ** Automatic – balancing will be performed automatically if needed conditions are met;
653 653  ** 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;
... ... @@ -733,10 +733,7 @@
733 733  
734 734  * the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time.
735 735  
736 -(% class="box infomessage" %)
737 -(((
738 738  If there is the "Heater" signal, the heater contactor closes and/or a signal is set to the corresponding digital output.
739 -)))
740 740  
741 741  === Cooler ===
742 742  
... ... @@ -763,10 +763,7 @@
763 763  
764 764  * the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time.
765 765  
766 -(% class="box infomessage" %)
767 -(((
768 768  If there is the "Cooler" signal, the cooler contactor closes and/or a signal is set to the corresponding digital output.
769 -)))
770 770  
771 771  === High voltage ===
772 772  
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