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Changes for page 3.4 Protections

Last modified by Admin on 2025/11/10 11:52
From version 46.2
edited by Admin
on 2025/11/06 10:38
Change comment: There is no comment for this version
To version 23.1
edited by Admin
on 2025/02/11 14:34
Change comment: There is no comment for this version

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... ... @@ -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.
... ... @@ -137,31 +137,6 @@
137 137  
138 138  * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
139 139  
140 -=== Cell imbalance ===
141 -
142 -The BMS Main 3 device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 -
144 -To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 -
146 -[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
147 -
148 -* Enable – a flag to enable the protection;
149 -* Maximum cell imbalance, V;
150 -* Tolerant cell imbalance, V;
151 -* Delay before setting the error, millisecond;
152 -* Delay before clearing the error, second;
153 -* Lock – a flag to block the error until the device is restarted.
154 -
155 -As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
156 -
157 -Error generation conditions:
158 -
159 -* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
160 -
161 -Conditions for removing the error:
162 -
163 -* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
164 -
165 165  === Low temperature ===
166 166  
167 167  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -346,14 +346,11 @@
346 346  
347 347  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
348 348  
349 -[[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"]]
350 350  
351 -
352 352  In this section:
353 353  
354 354  * Enable – a flag to enable the protection;
355 -* Delay before setting the error, second;
356 -* Delay before clearing the error, second;
357 357  * Lock – lock the error until the device is reset.
358 358  
359 359  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -400,40 +400,11 @@
400 400  If there is the "Cell count error", the **“Critical error” **is generated**.**
401 401  )))
402 402  
403 -=== Temperature sensor count ===
404 -
405 -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:
406 -
407 -[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
408 -
409 -In this section:
410 -
411 -* Enable – a flag to enable the protection;
412 -* Number of cells – a number of temperature sensors connected to the BMS;
413 -* Delay before setting the error, millisecond;
414 -* Delay before clearing the error, second;
415 -* Lock – a flag to block the error until the device is restarted.
416 -
417 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
418 -
419 -Error generation conditions:
420 -
421 -* 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.
422 -
423 -Conditions for removing the error:
424 -
425 -* 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.
426 -
427 -(% class="box warningmessage" %)
428 -(((
429 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
430 -)))
431 -
432 432  === Logic count ===
433 433  
434 434  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:
435 435  
436 -[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
379 +[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
437 437  
438 438  In this section:
439 439  
... ... @@ -440,8 +440,6 @@
440 440  * Enable – a flag to enable the protection;
441 441  * Logic count – a number of BMS Logic devices connected to the BMS Main;
442 442  * Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
443 -* Delay before setting the error – a delay before setting the error //during initialization//, millisecond;
444 -* Delay before clearing the error– a delay before clearing the error //during initialization//, second;
445 445  * Lock – lock the error until the device is reset.
446 446  
447 447  As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
... ... @@ -448,7 +448,7 @@
448 448  
449 449  Error generation conditions:
450 450  
451 -* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
392 +* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
452 452  
453 453  Conditions for removing the error:
454 454  
... ... @@ -570,11 +570,6 @@
570 570  
571 571  BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
572 572  
573 -(% class="box infomessage" %)
574 -(((
575 -**Note:** this error can be configured only under** "Service" account**.
576 -)))
577 -
578 578  To change the parameters of the power fault error, select the "Protections → Power fault" section:
579 579  
580 580  [[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
... ... @@ -581,16 +581,14 @@
581 581  
582 582  In this section:
583 583  
584 -* Enable – a flag to enable the protection;
520 +* Delay before clearing the error, second;
585 585  * Delay before setting the error, millisecond;
586 586  * Time to keep power off, millisecond;
587 587  * Delay before clearing the error, millisecond;
588 588  * Lock – a flag to block the error until the device is restarted.
589 589  
590 -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.
526 +The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. Error is removed when the power consumption is normal during “Delay before clearing the error” time.
591 591  
592 -Error is removed when the power consumption is normal during “Delay before clearing the error” time.
593 -
594 594  (% class="box warningmessage" %)
595 595  (((
596 596  If there is the "Power fault", the **“Critical error” **is generated.
... ... @@ -813,50 +813,15 @@
813 813  * Source is ON: Upper current limit, A;
814 814  * Lock – a flag to block the error until the device is restarted.
815 815  
816 -If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
750 +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.
817 817  
818 -Error clears if interlock loop is being restored.
819 -
820 820  (% class="box warningmessage" %)
821 821  (((
822 822  If there is the “HVIL error”, the **“Critical error”** is generated.
823 823  )))
824 824  
825 -=== Battery voltage ===
826 -
827 -The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
828 -
829 -To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
830 -
831 -[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
832 -
833 -In this section:
834 -
835 -* Enable – a flag to enable the protection;
836 -* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
837 -* Delay before setting the error, second;
838 -* Delay before clearing the error, second;
839 -* Lock – a flag to block the error until the device is restarted.
840 -
841 -If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
842 -
843 -Error generation conditions:
844 -
845 -* 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.
846 -
847 -Conditions for removing the error:
848 -
849 -* 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.
850 -
851 -(% class="box warningmessage" %)
852 -(((
853 -If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
854 -)))
855 -
856 856  === Critical error ===
857 857  
858 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
859 -
860 860  To change the critical error parameters, select the "Protections → Critical error" section:
861 861  
862 862  [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
... ... @@ -868,10 +868,33 @@
868 868  * Delay before clearing the error, second;
869 869  * Lock – a flag to block the error until the device is restarted.
870 870  
871 -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.
770 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
872 872  
873 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
772 +* “Battery cover error”;
773 +* “Water”;
774 +* “Logic offline”;
775 +* “Cell count error”;
776 +* “ADC error”;
777 +* “Current sensor error”;
778 +* “Shunt offline”;
779 +* “Shunt error”;
780 +* “WDT reset”
781 +* “No temp. sensors”;
782 +* “Temperature sensor shorted”;
783 +* “Stuck contactor”;
784 +* “CH contactor feedback error”;
785 +* “DCH contactor feedback error”;
786 +* “Insulation fault”;
787 +* “PCH contactor feedback error”;
788 +* “CH/DCH contactor feedback error”;
789 +* “Main contactor feedback error”;
790 +* “High voltage fault”;
791 +* “Power switch error”;
792 +* “HVIL error”;
793 +* “Power fault”.
874 874  
795 +The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
796 +
875 875  === General error ===
876 876  
877 877  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -886,7 +886,7 @@
886 886  * Lock – a flag to block the error until the device is restarted;
887 887  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
888 888  
889 -The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
811 +The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
890 890  
891 891  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
892 892  
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