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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 28.1
edited by Admin
on 2025/02/26 12:46
Change comment: There is no comment for this version

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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.
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