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Changes for page 3.3 Control

Last modified by Admin on 2025/12/11 10:32
From version 65.2
edited by Admin
on 2025/12/10 17:00
Change comment: There is no comment for this version
To version 42.6
edited by Admin
on 2025/02/24 12:24
Change comment: There is no comment for this version

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... ... @@ -102,15 +102,6 @@
102 102  * Ignore the linear zone – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 103  * Last correction timestamp – time when last correction was made.
104 104  
105 -=== SOH estimation ===
106 -
107 -The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms:
108 -
109 -* by effective capacity;
110 -* by total charge –.
111 -
112 -TBA
113 -
114 114  === Resistance estimation ===
115 115  
116 116  Calculation of the resistance of cells is carried out in two ways. The first method is used when the battery passes from a relaxation state to a charge or discharge state, wherein the cell resistance value
... ... @@ -222,11 +222,11 @@
222 222  * Enable – a flag to start calculation of the charge current limit;
223 223  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
224 224  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
225 -* 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;
226 226  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
227 227  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
228 228  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
229 -* 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;
230 230  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
231 231  * 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;
232 232  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -250,11 +250,11 @@
250 250  * Enable – a flag to start calculation of the discharge current limit;
251 251  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
252 252  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
253 -* 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;
254 254  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
255 255  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
256 256  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
257 -* 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;
258 258  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
259 259  * 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;
260 260  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -365,19 +365,13 @@
365 365  
366 366  To change the parameters of charging process status, select the "Control → Charging status" section:
367 367  
368 -[[image:1760435790050-496.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
359 +[[image:1735064935499-941.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]In this section:
369 369  
370 -In this section:
371 -
372 372  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
373 373  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
374 -* 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;
375 -* 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;
376 -* 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;
363 +* 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;
364 +* 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;
377 377  * 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;
378 -* 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;
379 -* 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;
380 -* 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;
381 381  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
382 382  
383 383  (% class="box infomessage" %)
... ... @@ -391,18 +391,12 @@
391 391  
392 392  To change the parameters of discharging process status, select the "Control → Discharging status" section:
393 393  
394 -[[image:1760435802140-274.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="129" width="800"]]
379 +[[image:1735064980481-209.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]In this section:
395 395  
396 -In this section:
397 -
398 398  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
399 399  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
400 -* 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;
401 -* 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;
402 -* 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;
403 -* 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;
404 -* 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;
405 -* 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;
383 +* 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;
384 +* 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;
406 406  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
407 407  
408 408  === Precharge ===
... ... @@ -415,14 +415,12 @@
415 415  
416 416  To change the parameters of precharge contactor, select the "Control → Precharge" section:
417 417  
418 -[[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
397 +[[image:1735065073836-743.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
419 419  
420 420  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
421 421  * 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;
422 422  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
423 -* 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;
424 424  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
425 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
426 426  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
427 427  * Relaxation between attempts – a duration between precharge attempts, millisecond;
428 428  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
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602 602  * the battery voltage is out of range;
603 603  * the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
604 604  
582 +(% class="box infomessage" %)
583 +(((
584 +**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).
585 +)))
586 +
605 605  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
606 606  
607 607  [[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
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618 618  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
619 619  * Minimum battery voltage, V;
620 620  * Maximum battery voltage, V;
621 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
603 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor;
622 622  
623 623  === Cell balancing ===
624 624  
... ... @@ -640,10 +640,7 @@
640 640  * the voltage on the cell is less than the balancing stop voltage;
641 641  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
642 642  
643 -(% class="box infomessage" %)
644 -(((
645 645  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
646 -)))
647 647  
648 648  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.
649 649  
... ... @@ -660,6 +660,9 @@
660 660  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
661 661  ** 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);
662 662  ** Balance always – balancing is always performed regardless the battery state;
642 +
643 +[[image:1735065666891-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="800"]]
644 +
663 663  * Balancing condition:
664 664  ** Automatic – balancing will be performed automatically if needed conditions are met;
665 665  ** 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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