Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58

From 48.1 to 47.2 From 56.1 to 55.4

From version 55.4

edited by Admin
on 2026/04/30 15:44

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To version 48.1

edited by Admin
on 2025/11/10 11:41

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@@ -12,37 +12,35 @@
  In this section:
--* **Cell capacity** – nominal capacity of cells, Ah;
--* **Cell resistance** – nominal (maximum) internal resistance of the cell, Ohm;
--* **Relax time (after charging)** – a relaxation time after charging, second;
--* **Relax time (after discharging)** – the relaxation time after discharging, second;
--* **Reset parameters **– a command to reset cells state of charge, capacity, and resistance.
++* Cell capacity – nominal capacity of cells, Ah;
++* Cell resistance – nominal (maximum) internal resistance of the cell, Ohm;
++* Relax time (after charging) – a relaxation time after charging, second;
++* Relax time (atfer discharging) – the relaxation time after discharging, second;
++* Reset parameters– a command to reset cells state of charge, capacity, and resistance.
--The values “**Capacity**” and “**Resistance**” are used to calculate the SOC of cells and the battery.
++The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
--The values of “**Relax time**” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
++The values of “Relax time” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
--The “**Reset parameters**”  is used for starting-up and adjustment of the battery and will reset:
++The “Reset parameters” will reset:
  * state of charge (new cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section);
  * cell resistance to “Cell resistance” value;
  * battery capacity to “Cell capacity” value.
++The “Reset parameters” command is used for starting-up and adjustment of the battery.
++
  === SOC estimation ===
--The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
++The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms:
--The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
++* by open circuit voltage;
++* by voltage and current.
--The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
++It is recommended to use the algorithm of calculation of SOC by voltage and current.
--* if I = 0, the battery is in the state of relaxation and the cell voltage Uocv is outside the [U,,ocv[point 1],,; U,,ocv[point 2],,], the SOC calculation is based on the tabular dependency Uocv = Uocv(SOC, t °C);
--* in any other cases, the SOC value is proportional to the charge (coulomb) passed through the battery (current time integral).
++To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
--The **“Current and voltage (enhanced)” **SOC calculation algorithm differs from the simplified algorithm by online correction of the effective capacity. When using this algorithm, it is necessary to fine tune the tabular dependence Uocv = Uocv (SOC, t °C).
--
--To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section:
--
  [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]]
  The following estimation algorithms supported:
@@ -64,30 +64,28 @@
  [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]]
--In this section:
++The following battery Final SOC calculation methods are supported:
--* **Algorithm:**
--** **Voltage **– by open circuit voltage;
--** **Current and voltage (simplified)** – recommended for LFP cells;
--** **Current and voltage (enhanced)** – recommended for NMC cells:
--* **Final SOC** – method of calculating overall SOC of battery:
--** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells;
--** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC;
--** **Min-Max SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells (recommended). Final SOC will be a) 100% if __any cell__ has 100% SOC, b) 0% if __any cell__ has 0% SOC;
--** **Max-Min SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if __all cells__ have 100% SOC, b) 0% if __all// //cells__ have 0% SOC.
--* **Scale the final SOC** – a flag to scale the battery SOC by the following values;
--* **SOC corresponding to 0%** – the battery SOC that sets to be 0%;
--* **SOC corresponding to 100%** – the battery SOC that sets to be 100%.
--* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
--* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
--** **Linear zone: point 1** – starting point of the Uocv linear zone;
--** **Linear zone: point 2** – ending point of the Uocv linear zone;
--* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature;
--* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles.
++* Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules;
++* Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules;
++* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell has 100% SOC, b) 0% if any cell has 0% SOC;
++* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC.
++Other parameters:
++
++* Scale the final SOC – a flag to scale the battery SOC by the following values;
++* SOC corresponding to 0% – the battery SOC that sets to be 0%;
++* SOC corresponding to 100% – the battery SOC that sets to be 100%.
++* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
++* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
++** Linear zone: point 1 – starting point of the Uocv linear zone;
++** Linear zone: point 2 – ending point of the Uocv linear zone;
++* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
++* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
++
  === SOC correction ===
--The BMS Mini S / BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
++The BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
@@ -95,12 +95,12 @@
  In this section:
--* **Enable **– a flag to enable the SOC correction;
--* **Shutdown period** – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
--* **Correction period** – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
--* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
--* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset);
--* **Last correction timestamp** – time when last correction was made.
++* Enable – a flag to enable SOC correction;
++* Shutdown period – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
++* Correction period – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
++* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
++* Ignore the linear zone – a flag to ignore linear SOC zone while correction;
++* Last correction timestamp – time when last correction was made.
  === Resistance estimation ===
@@ -134,18 +134,16 @@
  In this section:
--* **Current stabilization time**, millisecond;
--* **Maximum calculation period** – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
--* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell;
--* **Minimum SOC** – minimum cell SOC value for resistance calculation;
--* **Maximum SOC** – maximum cell SOC value for resistance calculation.
++* Current stabilization time, millisecond;
++* Maximum calculation period – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
++* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
++* Minimum SOC – minimum cell SOC value for resistance calculation;
++* Maximum SOC – maximum cell SOC value for resistance calculation.
  The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
  === Low SOC (signal) ===
--The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch.
--
  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
  [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
@@ -152,12 +152,12 @@
  In this section:
--* **Enable **– a flag to enable signal generation;
--* **Minimum SOC**, %;
--* **Tolerant SOC**, %;
--* **Delay before setting the signal**, second;
--* **Delay before clearing the signal**, second;
--* **Lock** – lock the signal until the device is reset.
++* Enable – a flag to enable signal generation;
++* Minimum SOC, %;
++* Tolerant SOC, %;
++* Delay before setting the signal, second;
++* Delay before clearing the signal, second;
++* Lock – lock the signal until the device is reset.
  Signal generation conditions:
@@ -167,10 +167,13 @@
  * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
++(% class="box infomessage" %)
++(((
++The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
++)))
++
  === High charging current (signal) ===
--The "High charging current" is indicative signal that can be output to a discrete output or a power switch.
--
  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
  [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
@@ -177,12 +177,12 @@
  In this section:
--* **Enable **– a flag to enable signal generation;
--* **Maximum charging current**, А;
--* **Tolerant charging current**, А;
--* **Delay before setting the signal**, second;
--* **Delay before clearing the signal**, second;
--* **Lock **– lock the signal until the device is reset.
++* Enable – a flag to enable signal generation;
++* Maximum charging current, А;
++* Tolerant charging current, А;
++* Delay before setting the signal, second;
++* Delay before clearing the signal, second;
++* Lock – lock the signal until the device is reset.
  Signal generation conditions:
@@ -192,11 +192,16 @@
  * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
++(% class="box infomessage" %)
++(((
++The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
++)))
++
  === Charge map ===
--The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
++The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
--Calculated current values are sent to a charger or an intellectual load over the CAN bus. External devices based on received data provide correct battery operation.
++Calculated current values are sending to a charger or an intellectual load over the CAN bus.
  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
@@ -203,17 +203,17 @@
  [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
  In this section:
--* **Enable **– a flag to start calculation of the charge current limit;
--* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A;
--* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
--* **Option 1: Limit charge current by the battery SOC and temperature** – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
--* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
--* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
--* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
--* **Option 3: Limit charge current by the maximum cell voltage** – a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
--* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage;
--* **Option 4: Limit charge current by the cell temperature** – a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
--* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature.
++* Enable – a flag to start calculation of the charge current limit;
++* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
++* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
++* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
++* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
++* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
++* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
++* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
++* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
++* Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
++* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
  Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
@@ -221,7 +221,7 @@
  === Discharge map ===
--The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
++The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
@@ -249,7 +249,7 @@
  === Main contactor ===
--The BMS Mini S / BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
++The BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
  The Main contactor algorithm supports the following modes:
@@ -321,7 +321,8 @@
  To change the parameters of discharging process status, select the "Control → Discharging status" section:
--[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
++[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]
++In this section:
  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
@@ -332,7 +332,6 @@
  * Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
  * Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
  * Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
--* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
  === Precharge ===
@@ -341,11 +341,9 @@
  BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. Also BMS can measure the power dissipated on precharge resistor and generate an error if it greater than configured limit.
--To change the parameters of precharge contactor, select the "Control → Precharge" section:
--
  [[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]]
--In this section:
++To change the parameters of precharge contactor, select the "Control → Precharge" section:
  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
  * Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
@@ -482,7 +482,7 @@
  === Charge/Discharge ===
--The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
++The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
  Charge/Discharge contactor has three algorithms of operation:
@@ -519,7 +519,7 @@
  === Discharge (AUX) ===
--The BMS Mini S / BMS Mini device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
++The BMS Mini device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
  The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program.
@@ -572,9 +572,9 @@
  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
  )))
--The BMS Mini S / BMS Mini device 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.
++The BMS Mini device 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.
--BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
++BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
  To change the cell balancing parameters, select the "Control → Cell balancing" section:
@@ -598,7 +598,7 @@
  === Power down ===
--The BMS Mini S / BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
++The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
  Shutting down the battery system is performed according to the following conditions:
@@ -605,7 +605,7 @@
  * the battery voltage is below the minimum level;
  * the “Charger connected” signal is cleared for 60 seconds.
--The BMS Mini S / BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
++The BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
  To change the parameters of the power down control, select the "Control → Power down" section:
@@ -621,13 +621,13 @@
  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
--[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
++
++[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
  In this section:
  * Enable – a flag to enable heater control;
  * Minimum cell temperature, °C;
  * Tolerant cell temperature, °C;
--* Start the heater only if "Charger connected" signal is set;
  * Delay before starting the heater, millisecond;
  * Delay before stopping the heater, millisecond;
  * Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
@@ -681,7 +681,7 @@
  Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C), which is necessary for calculating the state of charge of the battery.
--The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
++The BMS Mini device can automatically determine the battery discharge characteristic.
  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:

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