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Changes for page 3.4 Protections

Last modified by Admin on 2025/10/14 10:27
From version 42.2
edited by Admin
on 2025/10/14 10:21
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To version 27.2
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on 2025/02/26 12:01
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... ... @@ -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.
... ... @@ -137,12 +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
143 -
144 -To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
145 -
146 146  === Low temperature ===
147 147  
148 148  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -327,14 +327,11 @@
327 327  
328 328  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
329 329  
330 -[[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"]]
331 331  
332 -
333 333  In this section:
334 334  
335 335  * Enable – a flag to enable the protection;
336 -* Delay before setting the error, second;
337 -* Delay before clearing the error, second;
338 338  * Lock – lock the error until the device is reset.
339 339  
340 340  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -381,35 +381,6 @@
381 381  If there is the "Cell count error", the **“Critical error” **is generated**.**
382 382  )))
383 383  
384 -=== Temperature sensor count ===
385 -
386 -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:
387 -
388 -[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
389 -
390 -In this section:
391 -
392 -* Enable – a flag to enable the protection;
393 -* Number of cells – a number of temperature sensors connected to the BMS;
394 -* Delay before setting the error, millisecond;
395 -* Delay before clearing the error, second;
396 -* Lock – a flag to block the error until the device is restarted.
397 -
398 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
399 -
400 -Error generation conditions:
401 -
402 -* 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.
403 -
404 -Conditions for removing the error:
405 -
406 -* 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.
407 -
408 -(% class="box warningmessage" %)
409 -(((
410 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
411 -)))
412 -
413 413  === Logic count ===
414 414  
415 415  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:
... ... @@ -801,37 +801,6 @@
801 801  If there is the “HVIL error”, the **“Critical error”** is generated.
802 802  )))
803 803  
804 -=== Battery voltage ===
805 -
806 -The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
807 -
808 -To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
809 -
810 -[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
811 -
812 -In this section:
813 -
814 -* Enable – a flag to enable the protection;
815 -* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
816 -* Delay before setting the error, second;
817 -* Delay before clearing the error, second;
818 -* Lock – a flag to block the error until the device is restarted.
819 -
820 -If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
821 -
822 -Error generation conditions:
823 -
824 -* 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.
825 -
826 -Conditions for removing the error:
827 -
828 -* 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.
829 -
830 -(% class="box warningmessage" %)
831 -(((
832 -If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
833 -)))
834 -
835 835  === Critical error ===
836 836  
837 837  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
... ... @@ -847,7 +847,7 @@
847 847  * Delay before clearing the error, second;
848 848  * Lock – a flag to block the error until the device is restarted.
849 849  
850 -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.
781 +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:
851 851  
852 852  The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
853 853  
... ... @@ -865,7 +865,7 @@
865 865  * Lock – a flag to block the error until the device is restarted;
866 866  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
867 867  
868 -The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
799 +The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
869 869  
870 870  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
871 871  
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