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Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:15
From version 27.3
edited by Admin
on 2025/02/24 12:31
Change comment: There is no comment for this version
To version 34.1
edited by Admin
on 2025/04/09 12:15
Change comment: There is no comment for this version

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... ... @@ -208,11 +208,11 @@
208 208  * Enable – a flag to start calculation of the charge current limit;
209 209  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
210 210  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
211 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on SOC and battery temperature;
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 __maximum cell SOC__ and battery temperature;
212 212  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
213 213  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
214 214  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
215 -* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on maximum cell voltage;
215 +* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
216 216  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
217 217  * Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
218 218  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -236,11 +236,11 @@
236 236  * Enable – a flag to start calculation of the discharge current limit;
237 237  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
238 238  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
239 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on SOC and temperature;
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 __minimum cell SOC__ and temperature;
240 240  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
241 241  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
242 242  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
243 -* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on minimum cell voltage;
243 +* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
244 244  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
245 245  * Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
246 246  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -302,8 +302,8 @@
302 302  
303 303  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
304 304  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
305 -* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
306 -* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
305 +* 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;
306 +* Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
307 307  * Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
308 308  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
309 309  
... ... @@ -323,8 +323,8 @@
323 323  
324 324  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
325 325  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
326 -* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
327 -* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
326 +* 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;
327 +* 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;
328 328  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
329 329  
330 330  === Precharge ===
... ... @@ -527,37 +527,46 @@
527 527  * Switch off the discharging (AUX) contactor if the SOC is too low;
528 528  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
529 529  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
530 +* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
531 +* Minimum cell voltage, V;
532 +* Maximum cell voltage, V;
530 530  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
531 -* Minimum voltage – minimum battery voltage, V;
532 -* Maximum voltage – maximum battery voltage, V;
533 -* 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.
534 +* Minimum battery voltage, V;
535 +* Maximum battery voltage, V;
536 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
534 534  
535 -=== ===
536 -
537 537  === Cell balancing ===
538 538  
539 -Balancing makes the voltage of all cells be equal to the minimum cell voltage.
540 +Balancing makes the voltage of all cells equal to the minimum cell voltage.
540 540  
541 541  The following balancing rules are supported:
542 542  
543 -* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
544 +* when the battery is charging (current I > 0) and time after until the battery is relaxed;
544 544  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
545 545  * always (regardless of battery state).
546 546  
547 -A balancing resistor is connected to the cell if:
548 +A balancing resistor is connected to the cell if the following conditions are simultaneously met:
548 548  
549 -* the voltage on the cell is higher than the starting voltage of the balancing;
550 -* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
550 +* the voltage on the cell is higher than the balancing start voltage;
551 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
551 551  
553 +A balancing resistor is disconnected from the cell if any of the following conditions are met:
554 +
555 +* the voltage on the cell is less than the balancing stop voltage;
556 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
557 +
552 552  (% class="box infomessage" %)
553 553  (((
554 -If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
560 +If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
555 555  )))
556 556  
557 -To change the cell balancing parameters, select the "Control → Cell balancing" section:
563 +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.
558 558  
559 -[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
565 +BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
560 560  
567 +To change the cell balancing parameters, select the "Control → Cell balancing" section:
568 +
569 +[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
561 561  In this section:
562 562  
563 563  * Enable – a flag to enable cell balancing;
... ... @@ -565,11 +565,15 @@
565 565  ** Balance on charge;
566 566  ** Balance on charge or relaxed;
567 567  ** Balance always;
568 -
569 -[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
570 -
577 +* Balancing condition:
578 +** Automatic – balancing will be performed automatically if needed conditions are met;
579 +** 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;
571 571  * Minimum cell voltage to start balancing, V;
572 -* Balancing deviation, V.
581 +* Voltage deviation to start balancing;
582 +* Voltage deviation to stop balancing;
583 +* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
584 +* Maximum allowable temperature of the board, ºC;
585 +* Command to discharge all cells – a flag to force the balancing of all cells.
573 573  
574 574  === Power down ===
575 575  
... ... @@ -584,20 +584,20 @@
584 584  
585 585  To change the parameters of the power down control, select the "Control → Power down" section:
586 586  
587 -[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
588 -
600 +[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
589 589  In this section:
590 590  
591 591  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
592 592  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
593 -* 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.
605 +* 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;
606 +* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms.
594 594  
595 595  === Heater ===
596 596  
597 597  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
598 598  
599 -[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
600 600  
613 +[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
601 601  In this section:
602 602  
603 603  * Enable – a flag to enable heater control;
... ... @@ -605,7 +605,7 @@
605 605  * Tolerant cell temperature, °C;
606 606  * Delay before starting the heater, millisecond;
607 607  * Delay before stopping the heater, millisecond;
608 -* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
621 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
609 609  
610 610  As a result of operating the heating algorithm, the “Heater” signal is generated.
611 611  
... ... @@ -626,8 +626,8 @@
626 626  
627 627  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
628 628  
629 -[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
630 630  
643 +[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
631 631  In this section:
632 632  
633 633  * Enable – a flag to enable cooler control;
... ... @@ -635,7 +635,7 @@
635 635  * Tolerant cell temperature, °C;
636 636  * Delay before starting the cooler, millisecond;
637 637  * Delay before stopping the cooler, millisecond;
638 -* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
651 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler.
639 639  
640 640  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
641 641  
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