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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58
From version 55.4
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To version 24.2
edited by Admin
on 2025/02/24 12:17
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Summary

Details

Page properties
Content
... ... @@ -12,37 +12,35 @@
12 12  
13 13  In this section:
14 14  
15 -* **Cell capacity** – nominal capacity of cells, Ah;
16 -* **Cell resistance** – nominal (maximum) internal resistance of the cell, Ohm;
17 -* **Relax time (after charging)** – a relaxation time after charging, second;
18 -* **Relax time (after discharging)** – the relaxation time after discharging, second;
19 -* **Reset parameters **– a command to reset cells state of charge, capacity, and resistance.
15 +* Cell capacity – nominal capacity of cells, Ah;
16 +* Cell resistance – nominal (maximum) internal resistance of the cell, Ohm;
17 +* Relax time (after charging) – a relaxation time after charging, second;
18 +* Relax time (atfer discharging) – the relaxation time after discharging, second;
19 +* Reset parameters– a command to reset cells state of charge, capacity, and resistance.
20 20  
21 -The values “**Capacity**” and “**Resistance**” are used to calculate the SOC of cells and the battery.
21 +The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
22 22  
23 -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.
23 +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.
24 24  
25 -The “**Reset parameters**”  is used for starting-up and adjustment of the battery and will reset:
25 +The “Reset parameters” will reset:
26 26  
27 27  * 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);
28 28  * cell resistance to “Cell resistance” value;
29 29  * battery capacity to “Cell capacity” value.
30 30  
31 +The “Reset parameters” command is used for starting-up and adjustment of the battery.
32 +
31 31  === SOC estimation ===
32 32  
33 -The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
35 +The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms:
34 34  
35 -The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
37 +* by open circuit voltage;
38 +* by voltage and current.
36 36  
37 -The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
40 +It is recommended to use the algorithm of calculation of SOC by voltage and current.
38 38  
39 -* 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);
40 -* in any other cases, the SOC value is proportional to the charge (coulomb) passed through the battery (current time integral).
42 +To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
41 41  
42 -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).
43 -
44 -To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section:
45 -
46 46  [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]]
47 47  
48 48  The following estimation algorithms supported:
... ... @@ -64,30 +64,28 @@
64 64  
65 65  [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]]
66 66  
67 -In this section:
65 +The following battery Final SOC calculation methods are supported:
68 68  
69 -* **Algorithm:**
70 -** **Voltage **– by open circuit voltage;
71 -** **Current and voltage (simplified)** – recommended for LFP cells;
72 -** **Current and voltage (enhanced)** – recommended for NMC cells:
73 -* **Final SOC** – method of calculating overall SOC of battery:
74 -** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells;
75 -** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC;
76 -** **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;
77 -** **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.
78 -* **Scale the final SOC** – a flag to scale the battery SOC by the following values;
79 -* **SOC corresponding to 0%** – the battery SOC that sets to be 0%;
80 -* **SOC corresponding to 100%** – the battery SOC that sets to be 100%.
81 -* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
82 -* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
83 -** **Linear zone: point 1** – starting point of the Uocv linear zone;
84 -** **Linear zone: point 2** – ending point of the Uocv linear zone;
85 -* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature;
86 -* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles.
67 +* Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules;
68 +* Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules;
69 +* 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;
70 +* 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.
87 87  
72 +Other parameters:
73 +
74 +* Scale the final SOC – a flag to scale the battery SOC by the following values;
75 +* SOC corresponding to 0% – the battery SOC that sets to be 0%;
76 +* SOC corresponding to 100% – the battery SOC that sets to be 100%.
77 +* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
78 +* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
79 +** Linear zone: point 1 – starting point of the Uocv linear zone;
80 +** Linear zone: point 2 – ending point of the Uocv linear zone;
81 +* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
82 +* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
83 +
88 88  === SOC correction ===
89 89  
90 -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"]]).
86 +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"]]).
91 91  
92 92  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
93 93  
... ... @@ -95,12 +95,12 @@
95 95  
96 96  In this section:
97 97  
98 -* **Enable **– a flag to enable the SOC correction;
99 -* **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);
100 -* **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”.
101 -* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
102 -* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 -* **Last correction timestamp** – time when last correction was made.
94 +* Enable – a flag to enable SOC correction;
95 +* 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);
96 +* 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”.
97 +* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
98 +* Ignore the linear zone – a flag to ignore linear SOC zone while correction;
99 +* Last correction timestamp – time when last correction was made.
104 104  
105 105  === Resistance estimation ===
106 106  
... ... @@ -134,18 +134,16 @@
134 134  
135 135  In this section:
136 136  
137 -* **Current stabilization time**, millisecond;
138 -* **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;
139 -* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell;
140 -* **Minimum SOC** – minimum cell SOC value for resistance calculation;
141 -* **Maximum SOC** – maximum cell SOC value for resistance calculation.
133 +* Current stabilization time, millisecond;
134 +* 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;
135 +* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
136 +* Minimum SOC – minimum cell SOC value for resistance calculation;
137 +* Maximum SOC – maximum cell SOC value for resistance calculation.
142 142  
143 143  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).
144 144  
145 145  === Low SOC (signal) ===
146 146  
147 -The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch.
148 -
149 149  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
150 150  
151 151  [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
... ... @@ -152,12 +152,12 @@
152 152  
153 153  In this section:
154 154  
155 -* **Enable **– a flag to enable signal generation;
156 -* **Minimum SOC**, %;
157 -* **Tolerant SOC**, %;
158 -* **Delay before setting the signal**, second;
159 -* **Delay before clearing the signal**, second;
160 -* **Lock** – lock the signal until the device is reset.
149 +* Enable – a flag to enable signal generation;
150 +* Minimum SOC, %;
151 +* Tolerant SOC, %;
152 +* Delay before setting the signal, second;
153 +* Delay before clearing the signal, second;
154 +* Lock – lock the signal until the device is reset.
161 161  
162 162  Signal generation conditions:
163 163  
... ... @@ -167,10 +167,13 @@
167 167  
168 168  * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
169 169  
164 +(% class="box infomessage" %)
165 +(((
166 +The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
167 +)))
168 +
170 170  === High charging current (signal) ===
171 171  
172 -The "High charging current" is indicative signal that can be output to a discrete output or a power switch.
173 -
174 174  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
175 175  
176 176  [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
... ... @@ -177,12 +177,12 @@
177 177  
178 178  In this section:
179 179  
180 -* **Enable **– a flag to enable signal generation;
181 -* **Maximum charging current**, А;
182 -* **Tolerant charging current**, А;
183 -* **Delay before setting the signal**, second;
184 -* **Delay before clearing the signal**, second;
185 -* **Lock **– lock the signal until the device is reset.
177 +* Enable – a flag to enable signal generation;
178 +* Maximum charging current, А;
179 +* Tolerant charging current, А;
180 +* Delay before setting the signal, second;
181 +* Delay before clearing the signal, second;
182 +* Lock – lock the signal until the device is reset.
186 186  
187 187  Signal generation conditions:
188 188  
... ... @@ -192,11 +192,16 @@
192 192  
193 193  * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
194 194  
192 +(% class="box infomessage" %)
193 +(((
194 +The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
195 +)))
196 +
195 195  === Charge map ===
196 196  
197 -The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
199 +The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
198 198  
199 -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.
201 +Calculated current values are sending to a charger or an intellectual load over the CAN bus.
200 200  
201 201  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
202 202  
... ... @@ -203,17 +203,17 @@
203 203  [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
204 204  In this section:
205 205  
206 -* **Enable **– a flag to start calculation of the charge current limit;
207 -* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A;
208 -* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
209 -* **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;
210 -* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
211 -* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
212 -* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
213 -* **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)
214 -* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage;
215 -* **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;
216 -* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature.
208 +* Enable – a flag to start calculation of the charge current limit;
209 +* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
210 +* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
211 +* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on SOC and battery temperature;
212 +* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
213 +* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
214 +* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
215 +* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on maximum cell voltage;
216 +* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
217 +* 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;
218 +* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
217 217  
218 218  Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
219 219  
... ... @@ -221,7 +221,7 @@
221 221  
222 222  === Discharge map ===
223 223  
224 -The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
226 +The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
225 225  
226 226  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
227 227  
... ... @@ -234,11 +234,11 @@
234 234  * Enable – a flag to start calculation of the discharge current limit;
235 235  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
236 236  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
237 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
239 +* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on SOC and temperature;
238 238  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
239 239  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
240 240  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
241 -* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
243 +* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on minimum cell voltage;
242 242  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
243 243  * Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
244 244  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -249,7 +249,7 @@
249 249  
250 250  === Main contactor ===
251 251  
252 -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.
254 +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.
253 253  
254 254  The Main contactor algorithm supports the following modes:
255 255  
... ... @@ -295,19 +295,14 @@
295 295  
296 296  To change the parameters of charging process status, select the "Control → Charging status" section:
297 297  
298 -[[image:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
300 +[[image:1740399071280-626.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
299 299  In this section:
300 300  
301 301  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
302 302  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
303 -* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
304 -* Use actual voltage to generate the "Ready to charge" signal if the current is negative – a flag to disable voltage correction for "Ready to charge" signal only at discharging current;
305 -* Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
306 -* Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
305 +* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
306 +* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
307 307  * Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
308 -* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
309 -* Charge current limit to clear the 'Ready to charge' – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
310 -* Charge current limit to set the 'Ready to charge' – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
311 311  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
312 312  
313 313  (% class="box infomessage" %)
... ... @@ -321,18 +321,13 @@
321 321  
322 322  To change the parameters of discharging process status, select the "Control → Discharging status" section:
323 323  
324 -[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
321 +[[image:1740399096018-240.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
322 +In this section:
325 325  
326 326  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
327 327  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
328 -* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal;
329 -* Use actual voltage to generate the "Ready to discharge" signal if the current is positive – a flag to disable voltage correction for "Ready to discharge" signal only at charging current;
330 -* Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
331 -* Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
332 -* 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;
333 -* 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;
334 -* 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;
335 -* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
326 +* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
327 +* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
336 336  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
337 337  
338 338  === Precharge ===
... ... @@ -341,16 +341,12 @@
341 341  
342 342  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.
343 343  
336 +[[image:1740399150173-761.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
337 +
344 344  To change the parameters of precharge contactor, select the "Control → Precharge" section:
345 345  
346 -[[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]]
347 -
348 -In this section:
349 -
350 350  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
351 -* 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;
352 352  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
353 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
354 354  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
355 355  * Relaxation between attempts – a duration between precharge attempts, millisecond;
356 356  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -418,15 +418,23 @@
418 418  ** Always on – charging is always allowed;
419 419  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
420 420  ** On charge request – charging is allowed when there is a signal “Charge request”;
421 -* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
409 +* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
410 +* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
422 422  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
423 423  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
424 -* Control the precharging contactor – a flag that allows control of the precharging contactor (see [[Precharge>>url:http://#HPrecharge]]);
425 425  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
426 -* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
427 427  * Custom delay: <error> – specific error delay, millisecond;
428 428  * Switch off the charging contactor on errors without delay – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”;
416 +* Control the precharging contactor – a flag that allows control of the precharging contactor;
417 +* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
418 +* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
419 +* Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0.
429 429  
421 +(% class="box infomessage" %)
422 +(((
423 +Note – The allow charging contactor closes under two independent conditions: 1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
424 +)))
425 +
430 430  === Discharge ===
431 431  
432 432  The device controls the discharging contactor to connect battery to the load.
... ... @@ -433,36 +433,50 @@
433 433  
434 434  The device supports three algorithms to control battery discharging:
435 435  
436 -* Always on – load is always connected;
437 -* On charger disconnected – load is connected when there is no signal “Charger connected”;
438 -* On discharge request – load is connected when there is signal “Discharge request”.
432 +* load is always connected;
433 +* load is connected when there is no signal “Charger connected”;
434 +* load is connected when there is signal “Discharge request”.
439 439  
440 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
436 +When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
441 441  
442 -* Service reset
443 -* Power down request
444 -* Inhibit discharging
438 +* Undervoltage;
439 +* Overvoltage (optional);
440 +* Overcurrent;
441 +* High temperature (DCH);
442 +* Low temperature (DCH) (optional);
443 +* HYG offline (optional);
444 +* Combilift offline (optional);
445 +* Spirit offline (optional);
446 +* Spirit charger error (optional);
447 +* Short circuit (optional);
448 +* High contactor temperature (optional);
449 +* DCH contactor cycles error;
450 +* Critical error
445 445  
446 446  the discharging contactor opens.
447 447  
448 -If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
454 +If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:
449 449  
450 -* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
451 -* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
456 +* if there is no signal “Charger connected”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
457 +* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
452 452  
453 -When the "**On discharge request**" algorithm selected, the control is performed as follows:
459 +When the "**On Discharge request**" algorithm selected, the control is performed as follows:
454 454  
455 -* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
456 -* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
461 +* if there is signal “Discharge request”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
462 +* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
457 457  
458 458  (% class="box infomessage" %)
459 459  (((
460 -**Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
466 +Note: in case of errors in the system operation, the opening of the **discharging **contactor is performed either immediately or with a delay T,,off,, (depends on the settings described below).
461 461  )))
462 462  
469 +The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
470 +
471 +When the power down request occurs, the discharging contactor opens after delay T,,off,,. Reclosing the discharging contactor is performed if the power down request is removed.
472 +
463 463  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
464 464  
465 -[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
475 +[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
466 466  
467 467  In this section:
468 468  
... ... @@ -471,55 +471,32 @@
471 471  ** Always on – load is always connected;
472 472  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
473 473  ** On discharge request – load is connected when there is signal “Discharge request”;
474 -* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
484 +* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
485 +* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
475 475  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
476 476  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
477 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>path:#HPrecharge]]);
478 -* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
479 479  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
480 480  * Custom delay: <error> – specific error delay, millisecond;
481 481  * Switch off the discharging contactor on errors without delay – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”.
491 +* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
492 +* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
493 +* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
482 482  
483 483  === Charge/Discharge ===
484 484  
485 -The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
497 +The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
486 486  
487 -Charge/Discharge contactor has three algorithms of operation:
499 +The charging/discharging contactor combines algorithms of charging and discharging contactor. It behaves as a charging contactor when «Charge request» or «Charger connected» are set, otherwise – as a discharging contactor.
488 488  
489 -* Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
490 -* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
491 -* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs.
492 -
493 -TBA
494 -
495 -(% class="box infomessage" %)
496 -(((
497 -**Note: **when errors occur in the system, the **Charge/Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
498 -)))
499 -
500 500  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
501 501  
502 -[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
503 +[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
503 503  
504 -In this section:
505 -
506 506  * Enable – a flag to enable the charge/discharge controller.
507 -* Algorithm:
508 -** Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
509 -** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
510 -** Independent (on Charge request or Discharge request);
511 -* Delay before starting charging or discharging, millisecond;
512 -* Delay before stopping charging or discharging, millisecond;
513 -* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
514 -* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
515 -* Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes;
516 -* Errors 1, 2 which affect the contactor only if battery CHARGING is detected – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND;
517 -* Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND;
518 -* Switch off the charging/discharging contactor on errors without delay – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”.
519 519  
520 520  === Discharge (AUX) ===
521 521  
522 -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.
509 +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.
523 523  
524 524  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.
525 525  
... ... @@ -531,8 +531,8 @@
531 531  
532 532  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
533 533  
521 +[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
534 534  
535 -[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
536 536  In this section:
537 537  
538 538  * Enable – a flag to activate the auxiliary discharge control;
... ... @@ -539,46 +539,37 @@
539 539  * Switch off the discharging (AUX) contactor if the SOC is too low;
540 540  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
541 541  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
542 -* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
543 -* Minimum cell voltage, V;
544 -* Maximum cell voltage, V;
545 545  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
546 -* Minimum battery voltage, V;
547 -* Maximum battery voltage, V;
548 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
530 +* Minimum voltage – minimum battery voltage, V;
531 +* Maximum voltage – maximum battery voltage, V;
532 +* Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error.
549 549  
534 +=== ===
535 +
550 550  === Cell balancing ===
551 551  
552 -Balancing makes the voltage of all cells equal to the minimum cell voltage.
538 +Balancing makes the voltage of all cells be equal to the minimum cell voltage.
553 553  
554 554  The following balancing rules are supported:
555 555  
556 -* when the battery is charging (current I > 0) and time after until the battery is relaxed;
542 +* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
557 557  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
558 558  * always (regardless of battery state).
559 559  
560 -A balancing resistor is connected to the cell if the following conditions are simultaneously met:
546 +A balancing resistor is connected to the cell if:
561 561  
562 -* the voltage on the cell is higher than the balancing start voltage;
563 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
548 +* the voltage on the cell is higher than the starting voltage of the balancing;
549 +* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
564 564  
565 -A balancing resistor is disconnected from the cell if any of the following conditions are met:
566 -
567 -* the voltage on the cell is less than the balancing stop voltage;
568 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
569 -
570 570  (% class="box infomessage" %)
571 571  (((
572 -If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
553 +If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
573 573  )))
574 574  
575 -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.
576 -
577 -BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
578 -
579 579  To change the cell balancing parameters, select the "Control → Cell balancing" section:
580 580  
581 -[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
558 +[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
559 +
582 582  In this section:
583 583  
584 584  * Enable – a flag to enable cell balancing;
... ... @@ -586,19 +586,15 @@
586 586  ** Balance on charge;
587 587  ** Balance on charge or relaxed;
588 588  ** Balance always;
589 -* Balancing condition:
590 -** Automatic – balancing will be performed automatically if needed conditions are met;
591 -** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
567 +
568 +[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
569 +
592 592  * Minimum cell voltage to start balancing, V;
593 -* Voltage deviation to start balancing;
594 -* Voltage deviation to stop balancing;
595 -* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
596 -* Maximum allowable temperature of the board, ºC;
597 -* Command to discharge all cells – a flag to force the balancing of all cells.
571 +* Balancing deviation, V.
598 598  
599 599  === Power down ===
600 600  
601 -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.
575 +The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
602 602  
603 603  Shutting down the battery system is performed according to the following conditions:
604 604  
... ... @@ -605,32 +605,32 @@
605 605  * the battery voltage is below the minimum level;
606 606  * the “Charger connected” signal is cleared for 60 seconds.
607 607  
608 -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.
582 +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.
609 609  
610 610  To change the parameters of the power down control, select the "Control → Power down" section:
611 611  
612 -[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
586 +[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
587 +
613 613  In this section:
614 614  
615 615  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
616 616  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
617 -* 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;
618 -* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms.
592 +* 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.
619 619  
620 620  === Heater ===
621 621  
622 622  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
623 623  
624 -[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
598 +[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
599 +
625 625  In this section:
626 626  
627 627  * Enable – a flag to enable heater control;
628 628  * Minimum cell temperature, °C;
629 629  * Tolerant cell temperature, °C;
630 -* Start the heater only if "Charger connected" signal is set;
631 631  * Delay before starting the heater, millisecond;
632 632  * Delay before stopping the heater, millisecond;
633 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
607 +* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
634 634  
635 635  As a result of operating the heating algorithm, the “Heater” signal is generated.
636 636  
... ... @@ -651,8 +651,8 @@
651 651  
652 652  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
653 653  
628 +[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
654 654  
655 -[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
656 656  In this section:
657 657  
658 658  * Enable – a flag to enable cooler control;
... ... @@ -660,7 +660,7 @@
660 660  * Tolerant cell temperature, °C;
661 661  * Delay before starting the cooler, millisecond;
662 662  * Delay before stopping the cooler, millisecond;
663 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler.
637 +* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
664 664  
665 665  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
666 666  
... ... @@ -681,7 +681,7 @@
681 681  
682 682  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.
683 683  
684 -The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
658 +The BMS Mini device can automatically determine the battery discharge characteristic.
685 685  
686 686  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
687 687  
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