Changes for page 3.3 Control
Last modified by Admin on 2026/04/30 15:56
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... ... @@ -98,7 +98,7 @@ 98 98 99 99 In **"By effective capacity" **mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge. 100 100 101 -In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function.101 +In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function. 102 102 103 103 To configure parameters for battery state of health calculation, select the "Control → SOH correction" section: 104 104 ... ... @@ -546,7 +546,7 @@ 546 546 547 547 Charge/Discharge contactor has three algorithms of operation: 548 548 549 -On **Dependent (on Charging and Discharging signals)** algorithm the charge/discharge contactor depends on Charge and Discharge algorithms andtheirsignalsand behaves549 +On **Dependent (on Charging and Discharging signals)** algorithm the charge/discharge contactor depends on Charge and Discharge controllers and behaves: 550 550 551 551 * as Charging contactor if "Charging" signal is set; 552 552 * as Discharging contactor in other cases. ... ... @@ -560,9 +560,8 @@ 560 560 561 561 the charging/discharging contactor opens. 562 562 563 +On **Independent (on Charge request or Discharge request)** algorithm charge/discharge contactor is based on its own controller and performs as follows: 563 563 564 -**Independent (on Charge request or Discharge request)** - charge/discharge contactor is based on its own controller and performs as follows: 565 - 566 566 * if there is "Charge request" or "Discharge request" signal and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging/discharging contactor closes; 567 567 * If the "Charge request" or "Discharge request" disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the charging/discharging contactor opens. 568 568 ... ... @@ -648,7 +648,7 @@ 648 648 649 649 The BMS Main 3 / BMS Main 2R can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold. 650 650 651 -BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value. 650 +BMS Main 3 / BMS Main 2R can force a cell balancing, if its voltage is higher than estimated value. 652 652 653 653 To change the cell balancing parameters, select the "Control → Cell balancing" section: 654 654 ... ... @@ -667,13 +667,14 @@ 667 667 * **Minimum cell voltage to start balancing**, V; 668 668 * **Voltage deviation to start balancing**; 669 669 * **Voltage deviation to stop balancing**; 670 -* **Voltage for forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor; 669 +* **Voltage to start forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor; 670 +* **Voltage to stop forced balancing** – if cell voltage is below this value, it will stop discharging through balancing resistor; 671 671 * **Maximum allowable temperature of BMS Logic devices**, ºC; 672 672 * **Command to discharge all cells** – a flag to force the balancing of all cells. 673 673 674 674 === Series balancing === 675 675 676 -The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 676 +The BMS Main 3 / BMS Main 2R device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 677 677 678 678 Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2. 679 679 ... ... @@ -690,17 +690,17 @@ 690 690 691 691 In this section: 692 692 693 -* Enable – a flag to enable series balancing; 694 -* Number of Logics in a series; 695 -* Minimum series voltage to start balancing, V; 696 -* Balancing threshold, V; 697 -* Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 698 -* Period – a period to reset of charge counters for each series (to avoid accumulation of error), second; 699 -* Do not sum series voltages – a flag to disable the summing of series voltages. 3693 +* **Enable **– a flag to enable series balancing; 694 +* **Number of Logics in a series**; 695 +* **Minimum series voltage to start balancing**, V; 696 +* **Balancing threshold**, V; 697 +* **Coulomb threshold** – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 698 +* **Period **– a period to reset of charge counters for each series (to avoid accumulation of error), second; 699 +* **Do not sum series voltages** – a flag to disable the summing of series voltages. 700 700 701 701 === Power down === 702 702 703 -The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time. 703 +The BMS Main 3 / BMS Main 2R device can shut down itself if the battery voltage is low or the battery is idle for a long time. 704 704 705 705 Shutting down the battery system is performed according to the following conditions: 706 706 ... ... @@ -715,11 +715,11 @@ 715 715 716 716 In this section: 717 717 718 -* Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 719 -* Idle time to power down – a time of battery inactivity after which the battery is shut down, minute; 720 -* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS. 721 -* Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 722 -* Delay before setting the internal power down signal – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 718 +* **Minimum voltage to power down** – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 719 +* **Idle time to power down** – a time of battery inactivity after which the battery is shut down, minute; 720 +* **Wait the "Power up/down request" is cleared (on startup)** – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS. 721 +* **Power down if KEYRUN and CHARGE_ON are cleared** – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 722 +* **Delay before setting the internal power down signal** – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 723 723 724 724 === Heater === 725 725 ... ... @@ -729,22 +729,24 @@ 729 729 730 730 In this section: 731 731 732 -* Enable – a flag to enable the heater control; 733 -* Minimum cell temperature, °C; 734 -* Tolerant cell temperature, °C; 735 -* Delay before starting the heater, millisecond; 736 -* Delay before stopping the heater, millisecond; 737 -* Switchoffthe heateronerrors(Undervoltage,Overcurrent,Hightemperature, ShortcircuitorCriticalerror).732 +* **Enable **– a flag to enable the heater control; 733 +* **Minimum cell temperature**, °C; 734 +* **Tolerant cell temperature**, °C; 735 +* **Delay before starting the heater**, millisecond; 736 +* **Delay before stopping the heater**, millisecond; 737 +* **Errors 1, 2 to open the heater** – bitfields to choose the errors which will open the heater. 738 738 739 739 As a result of operating the heating algorithm, the “Heater” signal is generated. 740 740 741 741 Conditions for signal generation: 742 742 743 -* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time. 743 +* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time; 744 +* there are no errors from "Errors 1, 2..." bitfields. 744 744 745 745 Conditions for clearing the signal: 746 746 747 -* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time. 748 +* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time; 749 +* there is an error from "Errors 1, 2..." bitfields. 748 748 749 749 (% class="box infomessage" %) 750 750 ((( ... ... @@ -759,22 +759,24 @@ 759 759 760 760 In this section: 761 761 762 -* Enable – a flag to enable the cooler control; 763 -* Maximum cell temperature, °C; 764 -* Tolerant cell temperature, °C; 765 -* Delay before starting the cooler, millisecond; 766 -* Delay before stopping the cooler, millisecond; 767 -* Switchoffthe coolercontactoron errors(Undervoltage,Overcurrent, Low temperature,Short circuitorCriticalerror).764 +* **Enable** – a flag to enable the cooler control; 765 +* **Maximum cell temperature**, °C; 766 +* **Tolerant cell temperature**, °C; 767 +* **Delay before starting the cooler**, millisecond; 768 +* **Delay before stopping the cooler**, millisecond; 769 +* **Errors 1, 2 to open the cooler **– bitfields to choose the errors which will open the cooler. 768 768 769 769 As a result of operating the cooling algorithm, the "Cooler" signal is generated. 770 770 771 771 Conditions for signal generation: 772 772 773 -* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time. 775 +* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time; 776 +* there are no errors from "Errors 1, 2..." bitfields. 774 774 775 775 Conditions for clearing the signal: 776 776 777 -* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time. 780 +* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time; 781 +* there is an error from "Errors 1, 2..." bitfields. 778 778 779 779 (% class="box infomessage" %) 780 780 ((( ... ... @@ -783,6 +783,11 @@ 783 783 784 784 === High voltage === 785 785 790 +(% class="box warningmessage" %) 791 +((( 792 +This section is not available on BMS Main 2R. 793 +))) 794 + 786 786 The BMS Main 3 device has an ability to measure high voltages before and after contactors. 787 787 788 788 To change the parameters of high voltage fault, select the "Control → High voltage" section: ... ... @@ -791,9 +791,9 @@ 791 791 792 792 In this section: 793 793 794 -* Enable – a flag to enable High voltage control; 795 -* Delay before clearing the High voltage fault, second; 796 -* Lock the High voltage fault. 803 +* **Enable **– a flag to enable High voltage control; 804 +* **Delay before clearing the High voltage fault**, second; 805 +* **Lock the High voltage fault**. 797 797 798 798 The BMS Main 3 implements a self-diagnostics of high-voltage measurement lines. If measurement line breaks or high-voltage polarity is wrong, “High voltage fault” is generated. 799 799 ... ... @@ -806,7 +806,7 @@ 806 806 807 807 The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level. 808 808 809 -The BMS Main 3 device can automatically determine the battery discharge characteristic. 818 +The BMS Main 3 / BMS Main 2R device can automatically determine the battery discharge characteristic. 810 810 811 811 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 812 812 ... ... @@ -819,18 +819,14 @@ 819 819 820 820 In this section: 821 821 822 -* Enable – a flag to enable cell analysis; 823 -* Discharge step, Ah; 824 -* Delta voltage – a maximum allowable voltage drop for the cell, V; 825 -* Logic index, Cell index – a position of the analyzed cell; 826 -* Analyse the most discharged cell – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 831 +* **Enable **– a flag to enable cell analysis; 832 +* **Discharge step**, Ah; 833 +* **Delta voltage** – a maximum allowable voltage drop for the cell, V; 834 +* **Logic index, Cell index** – a position of the analyzed cell; 835 +* **Analyse the most discharged cell** – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 827 827 828 -Discharge step should be set equal to 837 +Discharge step should be set equal to С/21, where C is the cell capacity. 829 829 830 -Discharge step= С/21, 831 - 832 -where C is the cell capacity. 833 - 834 834 The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”). 835 835 836 836 The algorithm for determining the discharge characteristic of the battery will be started if the “Enable” flag is set. From this moment, the control of the discharge contactor is performed by this algorithm.