Skip to Content

Changes for page 3.4 Protections

Last modified by Admin on 2025/08/22 14:36
From version 19.1
edited by Admin
on 2024/12/26 15:39
Change comment: There is no comment for this version
To version 37.1
edited by Admin
on 2025/08/22 14:12
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -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 warningmessage" %)
9 +(% class="box errormessage" %)
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 diffr, A;
58 +* Region 1: Current difference – a value of maximum absolute current difference, 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 diffr, A;
78 +* Region 1: Current difference – a value of maximum absolute current difference, 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 enable the check of voltage correction due to current and cell resistance;
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;
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 enable the check of voltage correction due to current and cell resistance;
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;
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.
... ... @@ -321,11 +321,14 @@
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:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
324 +[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
325 325  
326 +
326 326  In this section:
327 327  
328 328  * Enable – a flag to enable the protection;
330 +* Delay before setting the error, second;
331 +* Delay before clearing the error, second;
329 329  * Lock – lock the error until the device is reset.
330 330  
331 331  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -372,6 +372,35 @@
372 372  If there is the "Cell count error", the **“Critical error” **is generated**.**
373 373  )))
374 374  
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-sensor count error" is generated.
393 +
394 +Error generation conditions:
395 +
396 +* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
397 +
398 +Conditions for removing the error:
399 +
400 +* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
401 +
402 +(% class="box warningmessage" %)
403 +(((
404 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
405 +)))
406 +
375 375  === Logic count ===
376 376  
377 377  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:
... ... @@ -507,6 +507,36 @@
507 507  If there is the "Power switch error", the **“Critical error” **is generated.
508 508  )))
509 509  
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 +
510 510  === Charge contactor cycles ===
511 511  
512 512  The BMS Main 3 device protects the charging contactor against frequent switching.
... ... @@ -724,15 +724,45 @@
724 724  * Source is ON: Upper current limit, A;
725 725  * Lock – a flag to block the error until the device is restarted.
726 726  
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.
789 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
728 728  
791 +Error clears if interlock loop is being restored.
792 +
729 729  (% class="box warningmessage" %)
730 730  (((
731 731  If there is the “HVIL error”, the **“Critical error”** is generated.
732 732  )))
733 733  
798 +=== Battery voltage ===
799 +
800 +The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
801 +
802 +To change the HVIL measurement parameters, select the "Protections → Battery voltage" section:
803 +
804 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
805 +
806 +In this section:
807 +
808 +* Enable – a flag to enable the protection;
809 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
810 +* Delay before setting the error, second;
811 +* Delay before clearing the error, second;
812 +* Lock – a flag to block the error until the device is restarted.
813 +
814 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
815 +
816 +Error generation conditions:
817 +
818 +* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
819 +
820 +Conditions for removing the error:
821 +
822 +* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
823 +
734 734  === Critical error ===
735 735  
826 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
827 +
736 736  To change the critical error parameters, select the "Protections → Critical error" section:
737 737  
738 738  [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
... ... @@ -744,33 +744,10 @@
744 744  * Delay before clearing the error, second;
745 745  * Lock – a flag to block the error until the device is restarted.
746 746  
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:
839 +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.
748 748  
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”.
841 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
771 771  
772 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
773 -
774 774  === General error ===
775 775  
776 776  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -785,11 +785,11 @@
785 785  * Lock – a flag to block the error until the device is restarted;
786 786  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
787 787  
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.
857 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
789 789  
790 790  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
791 791  
792 792  (% class="box infomessage" %)
793 793  (((
794 -The state of the “General error” can be output to a discrete output or to a power switch.
863 +The state of the “General error” can be assigned to a discrete output or to a power switch.
795 795  )))
1739284154410-676.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +20.4 KB
Content
1755870412909-992.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +20.5 KB
Content
1755870732669-803.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +17.2 KB
Content
1755871195329-366.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +16.0 KB
Content
1755871522789-489.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +16.0 KB
Content
1755871582533-550.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +17.2 KB
Content
1755871661259-633.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +20.5 KB
Content