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Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:15
From version 30.2
edited by Admin
on 2025/02/24 13:51
Change comment: There is no comment for this version
To version 25.2
edited by Admin
on 2025/02/24 12:25
Change comment: There is no comment for this version

Summary

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... ... @@ -472,38 +472,13 @@
472 472  
473 473  The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
474 474  
475 -Charge/Discharge contactor has three algorithms of operation:
475 +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.
476 476  
477 -* 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;
478 -* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
479 -* 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.
480 -
481 -TBA
482 -
483 -(% class="box infomessage" %)
484 -(((
485 -**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).
486 -)))
487 -
488 488  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
489 489  
490 -[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
479 +[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
491 491  
492 -In this section:
493 -
494 494  * Enable – a flag to enable the charge/discharge controller.
495 -* Algorithm:
496 -** 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;
497 -** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
498 -** Independent (on Charge request or Discharge request);
499 -* Delay before starting charging or discharging, millisecond;
500 -* Delay before stopping charging or discharging, millisecond;
501 -* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
502 -* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
503 -* 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;
504 -* 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;
505 -* 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;
506 -* 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”.
507 507  
508 508  === Discharge (AUX) ===
509 509  
... ... @@ -519,8 +519,8 @@
519 519  
520 520  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
521 521  
497 +[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
522 522  
523 -[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
524 524  In this section:
525 525  
526 526  * Enable – a flag to activate the auxiliary discharge control;
... ... @@ -527,46 +527,37 @@
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;
533 533  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
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.
506 +* Minimum voltage – minimum battery voltage, V;
507 +* Maximum voltage – maximum battery voltage, V;
508 +* 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.
537 537  
510 +=== ===
511 +
538 538  === Cell balancing ===
539 539  
540 -Balancing makes the voltage of all cells equal to the minimum cell voltage.
514 +Balancing makes the voltage of all cells be equal to the minimum cell voltage.
541 541  
542 542  The following balancing rules are supported:
543 543  
544 -* when the battery is charging (current I > 0) and time after until the battery is relaxed;
518 +* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
545 545  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
546 546  * always (regardless of battery state).
547 547  
548 -A balancing resistor is connected to the cell if the following conditions are simultaneously met:
522 +A balancing resistor is connected to the cell if:
549 549  
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;
524 +* the voltage on the cell is higher than the starting voltage of the balancing;
525 +* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
552 552  
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 -
558 558  (% class="box infomessage" %)
559 559  (((
560 -If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
529 +If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
561 561  )))
562 562  
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.
564 -
565 -BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
566 -
567 567  To change the cell balancing parameters, select the "Control → Cell balancing" section:
568 568  
569 -[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
534 +[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
535 +
570 570  In this section:
571 571  
572 572  * Enable – a flag to enable cell balancing;
... ... @@ -574,15 +574,11 @@
574 574  ** Balance on charge;
575 575  ** Balance on charge or relaxed;
576 576  ** Balance always;
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;
543 +
544 +[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
545 +
580 580  * Minimum cell voltage to start balancing, 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.
547 +* Balancing deviation, V.
586 586  
587 587  === Power down ===
588 588  
... ... @@ -597,20 +597,20 @@
597 597  
598 598  To change the parameters of the power down control, select the "Control → Power down" section:
599 599  
600 -[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
562 +[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
563 +
601 601  In this section:
602 602  
603 603  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
604 604  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
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.
568 +* 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.
607 607  
608 608  === Heater ===
609 609  
610 610  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
611 611  
574 +[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
612 612  
613 -[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
614 614  In this section:
615 615  
616 616  * Enable – a flag to enable heater control;
... ... @@ -618,7 +618,7 @@
618 618  * Tolerant cell temperature, °C;
619 619  * Delay before starting the heater, millisecond;
620 620  * Delay before stopping the heater, millisecond;
621 -* Errors 1, 2 to turn off the heater – битовые поля для выбора ошибок, выключающих нагреватель.
583 +* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
622 622  
623 623  As a result of operating the heating algorithm, the “Heater” signal is generated.
624 624  
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