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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 16.2
edited by Admin
on 2024/12/26 15:01
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To version 4.4
edited by Admin
on 2024/12/12 16:32
Change comment: Update document after refactoring.

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1 1  (% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 -= Configuration =
2 += Settings =
3 3  
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
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12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
15 -[[image:1735224601506-488.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
15 +[[image:1733328382376-958.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
16 16  
17 17  In this section:
18 18  
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42 42  If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 43  )))
44 44  
45 -=== Charge current limit ===
46 -
47 -The BMS Main 3 device can check the charging current limit, calculated by the Car.
48 -
49 -[[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
50 -
51 -=== Discharge current limit ===
52 -
53 -TBA
54 -
55 55  === Undervoltage ===
56 56  
57 57  The BMS Main 3 device implements battery protection from too low voltage on the cells.
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58 58  
59 59  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
60 60  
61 -[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
51 +[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
62 62  
63 63  In this section:
64 64  
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65 65  * Enable – a flag to enable the protection;
66 66  * Minimum cell voltage, V;
67 67  * Tolerant cell voltage, V;
68 -* 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;
69 69  * Delay before setting the error, millisecond;
70 70  * Delay before clearing the error, second;
71 71  * Lock – a flag to block the error until the device is restarted.
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91 91  
92 92  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
93 93  
94 -[[image:1735224377252-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
83 +[[image:1733328382382-607.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
95 95  
96 96  In this section:
97 97  
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98 98  * Enable – a flag to enable the protection;
99 99  * Maximum cell voltage, V;
100 100  * Tolerant cell voltage, V;
101 -* 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;
102 102  * Delay before setting the error, millisecond;
103 103  * Delay before clearing the error, second;
92 +* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
104 104  * Lock – a flag to block the error until the device is restarted.
105 105  
106 106  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
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280 280  If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
281 281  )))
282 282  
283 -=== Logic high temperature ===
272 +=== High Logic temperature ===
284 284  
285 285  To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
286 286  
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399 399  
400 400  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
401 401  
402 -[[image:1735224667621-969.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
391 +[[image:1733328415733-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="210" width="800"]]
403 403  
404 404  In this section:
405 405  
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407 407  ** Enable – a flag to enable the protection;
408 408  ** Maximum current, A;
409 409  ** Delay before setting the error, second;
399 +* Switch off the charging contactor on error – a flag to open the charging contactor when the "Short circuit" error occurs;
400 +* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Short circuit" error occurs;
410 410  * Delay before clearing the error, second;
411 411  * Lock – a flag to block the error until the device is restarted.
412 412  
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431 431  
432 432  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
433 433  
434 -[[image:1735224706573-347.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
425 +[[image:1733328415734-986.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
435 435  
436 436  In this section:
437 437  
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440 440  * Maximum contactor temperature, °C;
441 441  * Tolerant contactor temperature, °C;
442 442  * Delay before setting the error, second;
434 +* Switch off the charging contactor on error – a flag to open the charging contactor when the "High contactor temperature" error occurs;
435 +* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "High contactor temperature" error occurs;
443 443  * Delay before clearing the error, second;
444 444  * Lock – a flag to block the error until the device is restarted.
445 445  
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510 510  If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
511 511  )))
512 512  
513 -=== Power fault ===
514 -
515 -TBA
516 -
517 517  === Charge contactor cycles ===
518 518  
519 519  The BMS Main 3 device protects the charging contactor against frequent switching.
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653 653  If there is the "Unallowable charging" error, the **discharging **contactor opens.
654 654  )))
655 655  
656 -=== Stuck contactor ===
645 +=== ​​​​​​​Stuck contactor ===
657 657  
658 658  The BMS Main 3 device protects contactors against sticking.
659 659  
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703 703  If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
704 704  )))
705 705  
706 -=== Insulation ===
695 +=== ​​​​​​​Precharge ===
707 707  
697 +BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. To change the pre-charge monitoring parameters, select the "Protections → Precharge" section:
698 +
699 +[[image:1733328487097-648.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
700 +
701 +In this section:
702 +
703 +* Enable – a flag to enable the protection;
704 +* Delay before setting the error, millisecond;
705 +* Delay before clearing the error, second;
706 +* Lock – a flag to block the error until the device is restarted.
707 +
708 +As a result of the protection algorithms the “Precharge error” is generated. Error generation conditions:
709 +
710 +* precharging process cannot be finished (the precharge current does not decrease or voltages before and after contactors are not equal) during the “Delay before setting the error” time.
711 +
712 +(% class="box infomessage" %)
713 +(((
714 +If there is the “Precharge error”, **charging **and **discharging **contactors open.
715 +)))
716 +
717 +=== ​​​​​​​Insulation ===
718 +
708 708  The BMS Main 3 device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
709 709  
710 710  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
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735 735  
736 736  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
737 737  
738 -[[image:1735224839441-185.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
749 +[[image:1733328487099-371.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]
739 739  
740 740  In this section:
741 741  
742 742  * Enable – a flag to enable the protection;
743 -* Source is OFF: Lower current limit, A;
744 -* Source is OFF: Upper current limit, A;
745 -* Source is ON: Lower current limit, A;
746 -* Source is ON: Upper current limit, A;
747 747  * Lock – a flag to block the error until the device is restarted.
748 748  
749 -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.
756 +If interlock loop breaks, the “HVIL error” is generated. Error clears if interlock loop is being restored.
750 750  
751 751  (% class="box warningmessage" %)
752 752  (((
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798 798  If there is the “Critical error”, **all **contactors open.
799 799  )))
800 800  
801 -=== General error ===
808 +=== ​​​​​​​General error ===
802 802  
803 803  To change the general error parameters, select the "Protections → Critical error" section:
804 804  
805 -[[image:1735224942262-497.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
812 +[[image:1733328487101-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
806 806  
807 807  In this section:
808 808  
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810 810  * Delay before setting the error, millisecond;
811 811  * Delay before clearing the error, second;
812 812  * Lock – a flag to block the error until the device is restarted;
813 -* Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
820 +* Check: <error> – a flags to enable check of corresponding errors.
814 814  
815 815  The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
816 816  
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