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Changes for page 3.4 Protections

Last modified by Admin on 2025/08/22 14:36
From version 35.2
edited by Admin
on 2025/08/22 14:06
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To version 20.1
edited by Admin
on 2024/12/26 15:41
Change comment: There is no comment for this version

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... ... @@ -6,7 +6,7 @@
6 6  
7 7  The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 -(% class="box errormessage" %)
9 +(% class="box warningmessage" %)
10 10  (((
11 11  **Attention!**
12 12  Behavior of contactors at different errors is configured in **corresponding contactor settings**!
... ... @@ -55,7 +55,7 @@
55 55  
56 56  * Enable – a flag to enable the protection;
57 57  * Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 -* Region 1: Current difference – a value of maximum absolute current difference, A;
58 +* Region 1: Current difference – a value of maximum absolute current diffr, A;
59 59  * Region 2: Current difference – a value of maximum relative current excess, A;
60 60  * Delay before setting the error, millisecond;
61 61  * Delay before clearing the error, second;
... ... @@ -75,7 +75,7 @@
75 75  
76 76  * Enable – a flag to enable the protection;
77 77  * Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A;
78 -* Region 1: Current difference – a value of maximum absolute current difference, A;
78 +* Region 1: Current difference – a value of maximum absolute current diffr, A;
79 79  * Region 2: Current difference – a value of maximum relative current excess, A;
80 80  * Delay before setting the error, millisecond;
81 81  * Delay before clearing the error, second;
... ... @@ -94,7 +94,7 @@
94 94  * Enable – a flag to enable the protection;
95 95  * Minimum cell voltage, V;
96 96  * Tolerant cell voltage, V;
97 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
97 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
98 98  * Delay before setting the error, millisecond;
99 99  * Delay before clearing the error, second;
100 100  * Lock – a flag to block the error until the device is restarted.
... ... @@ -122,7 +122,7 @@
122 122  * Enable – a flag to enable the protection;
123 123  * Maximum cell voltage, V;
124 124  * Tolerant cell voltage, V;
125 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
125 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
126 126  * Delay before setting the error, millisecond;
127 127  * Delay before clearing the error, second;
128 128  * Lock – a flag to block the error until the device is restarted.
... ... @@ -321,14 +321,11 @@
321 321  
322 322  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
323 323  
324 -[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
324 +[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
325 325  
326 -
327 327  In this section:
328 328  
329 329  * Enable – a flag to enable the protection;
330 -* Delay before setting the error, second;
331 -* Delay before clearing the error, second;
332 332  * Lock – lock the error until the device is reset.
333 333  
334 334  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -375,35 +375,6 @@
375 375  If there is the "Cell count error", the **“Critical error” **is generated**.**
376 376  )))
377 377  
378 -=== Temperature sensor count ===
379 -
380 -To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
381 -
382 -[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
383 -
384 -In this section:
385 -
386 -* Enable – a flag to enable the protection;
387 -* Number of cells – a number of temperature sensors connected to the BMS;
388 -* Delay before setting the error, millisecond;
389 -* Delay before clearing the error, second;
390 -* Lock – a flag to block the error until the device is restarted.
391 -
392 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensocount error" is generated.
393 -
394 -Error generation conditions:
395 -
396 -* the number of cells connected to the BMS is **not equal** to the “Number of cells” value during the “Delay before setting the error” time.
397 -
398 -Conditions for removing the error:
399 -
400 -* the number of cells connected to the BMS is **equal** to the “Number of cells” value during the “Delay before clearing the error” time.
401 -
402 -(% class="box warningmessage" %)
403 -(((
404 -If there is the "Cell count error", the **“Critical error” **is generated**.**
405 -)))
406 -
407 407  === Logic count ===
408 408  
409 409  To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
... ... @@ -539,36 +539,6 @@
539 539  If there is the "Power switch error", the **“Critical error” **is generated.
540 540  )))
541 541  
542 -=== Power fault ===
543 -
544 -BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
545 -
546 -(% class="box infomessage" %)
547 -(((
548 -**Note:** this error can be configured only under** "Service" account**.
549 -)))
550 -
551 -To change the parameters of the power fault error, select the "Protections → Power fault" section:
552 -
553 -[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
554 -
555 -In this section:
556 -
557 -* Enable – a flag to enable the protection;
558 -* Delay before setting the error, millisecond;
559 -* Time to keep power off, millisecond;
560 -* Delay before clearing the error, millisecond;
561 -* Lock – a flag to block the error until the device is restarted.
562 -
563 -The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again.
564 -
565 -Error is removed when the power consumption is normal during “Delay before clearing the error” time.
566 -
567 -(% class="box warningmessage" %)
568 -(((
569 -If there is the "Power fault", the **“Critical error” **is generated.
570 -)))
571 -
572 572  === Charge contactor cycles ===
573 573  
574 574  The BMS Main 3 device protects the charging contactor against frequent switching.
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786 786  * Source is ON: Upper current limit, A;
787 787  * Lock – a flag to block the error until the device is restarted.
788 788  
789 -If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
727 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated. Error clears if interlock loop is being restored.
790 790  
791 -Error clears if interlock loop is being restored.
792 -
793 793  (% class="box warningmessage" %)
794 794  (((
795 795  If there is the “HVIL error”, the **“Critical error”** is generated.
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797 797  
798 798  === Critical error ===
799 799  
800 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
801 -
802 802  To change the critical error parameters, select the "Protections → Critical error" section:
803 803  
804 804  [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
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810 810  * Delay before clearing the error, second;
811 811  * Lock – a flag to block the error until the device is restarted.
812 812  
813 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
747 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
814 814  
815 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
749 +* “Battery cover error”;
750 +* “Water”;
751 +* “Logic offline”;
752 +* “Cell count error”;
753 +* “ADC error”;
754 +* “Current sensor error”;
755 +* “Shunt offline”;
756 +* “Shunt error”;
757 +* “WDT reset”
758 +* “No temp. sensors”;
759 +* “Temperature sensor shorted”;
760 +* “Stuck contactor”;
761 +* “CH contactor feedback error”;
762 +* “DCH contactor feedback error”;
763 +* “Insulation fault”;
764 +* “PCH contactor feedback error”;
765 +* “CH/DCH contactor feedback error”;
766 +* “Main contactor feedback error”;
767 +* “High voltage fault”;
768 +* “Power switch error”;
769 +* “HVIL error”;
770 +* “Power fault”.
816 816  
772 +The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
773 +
817 817  === General error ===
818 818  
819 819  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -828,7 +828,7 @@
828 828  * Lock – a flag to block the error until the device is restarted;
829 829  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
830 830  
831 -The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
788 +The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
832 832  
833 833  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
834 834  
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