Changes 2023.09.27

CHANGELOG.md

@@ -1,6 +1,15 @@
 # Changelog
 
+## Breaking changes
+
+* Driver version greater or equal to `v1.0.20230629beta` and smaller or equal to `v1.0.20230926beta`:
+
+  With `v1.0.20230927beta` the following values changed names:
+  * `BULK_CELL_VOLTAGE` -> `SOC_RESET_VOLTAGE`
+  * `BULK_AFTER_DAYS` -> `SOC_RESET_AFTER_DAYS`
+
 ## v1.0.x
+
 * Added: Bluetooth: Show signal strength of BMS in log by @mr-manuel
 * Added: Create unique identifier, if not provided from BMS by @mr-manuel
 * Added: Current average of the last 5 minutes by @mr-manuel
@@ -13,11 +22,12 @@
 * Added: JKBMS BMS connect via CAN (experimental, some limits apply) by @IrisCrimson and @mr-manuel
 * Added: LLT/JBD BMS - Discharge / Charge Mosfet and disable / enable balancer switching over remote console/GUI with https://github.com/Louisvdw/dbus-serialbattery/pull/761 by @idstein
 * Added: LLT/JBD BMS - Show balancer state in GUI under the IO page with https://github.com/Louisvdw/dbus-serialbattery/pull/763 by @idstein
-* Added: Load to bulk voltage every x days to reset the SoC to 100% for some BMS by @mr-manuel
+* Added: Load to SOC reset voltage every x days to reset the SoC to 100% for some BMS by @mr-manuel
 * Added: Save custom name and make it restart persistant by @mr-manuel
 * Added: Temperature names to dbus and mqtt by @mr-manuel
 * Added: Use current average of the last 300 cycles for time to go and time to SoC calculation by @mr-manuel
 * Added: Validate current, voltage, capacity and SoC for all BMS. This prevents that a device, which is no BMS, is detected as BMS. Fixes also https://github.com/Louisvdw/dbus-serialbattery/issues/479 by @mr-manuel
+* Changed: `VOLTAGE_DROP` now behaves differently. Before it reduced the voltage for the check, now the voltage for the charger is increased in order to get the target voltage on the BMS by @mr-manuel
 * Changed: Daly BMS - Fix readsentence by @transistorgit
 * Changed: Enable BMS that are disabled by default by specifying it in the config file. No more need to edit scripts by @mr-manuel
 * Changed: Fixed Building wheel for dbus-fast won't finish on weak systems https://github.com/Louisvdw/dbus-serialbattery/issues/785 by @mr-manuel
@@ -29,10 +39,13 @@
 * Changed: Improved battery voltage handling in linear absorption mode by @ogurevich
 * Changed: Improved driver disable script by @md-manuel
 * Changed: Improved driver reinstall when multiple Bluetooth BMS are enabled by @mr-manuel
+* Changed: JKBMS - Driver do not start if manufacturer date in BMS is empty https://github.com/Louisvdw/dbus-serialbattery/issues/823 by @mr-manuel
 * Changed: JKBMS_BLE BMS - Improved driver by @seidler2547 & @mr-manuel
 * Changed: LLT/JBD BMS - Fix cycle capacity with https://github.com/Louisvdw/dbus-serialbattery/pull/762 by @idstein
+* Changed: LLT/JBD BMS - Fixed https://github.com/Louisvdw/dbus-serialbattery/issues/730 by @mr-manuel
+* Changed: LLT/JBD BMS - Fixed https://github.com/Louisvdw/dbus-serialbattery/issues/769 by @mr-manuel
 * Changed: LLT/JBD BMS - Fixed https://github.com/Louisvdw/dbus-serialbattery/issues/778 with https://github.com/Louisvdw/dbus-serialbattery/pull/798 by @idstein
-* Changed: LLT/JBD BMS - Improved error handling and automatical driver restart in case of error. Should fix https://github.com/Louisvdw/dbus-serialbattery/issues/730, https://github.com/Louisvdw/dbus-serialbattery/issues/769 and https://github.com/Louisvdw/dbus-serialbattery/issues/777 by @mr-manuel
+* Changed: LLT/JBD BMS - Improved error handling and automatical driver restart in case of error. Fixed https://github.com/Louisvdw/dbus-serialbattery/issues/777 by @mr-manuel
 * Changed: LLT/JBD BMS - SOC different in Xiaoxiang app and dbus-serialbattery with https://github.com/Louisvdw/dbus-serialbattery/pull/760 by @idstein
 * Changed: Make CCL and DCL limiting messages more clear by @mr-manuel
 * Changed: Reduce the big inrush current if the CVL jumps from Bulk/Absorbtion to Float https://github.com/Louisvdw/dbus-serialbattery/issues/659 by @Rikkert-RS & @ogurevich
@@ -44,7 +57,7 @@
 
 ## v1.0.20230531
 
-### ATTENTION: Breaking changes! The config is now done in the `config.ini`. All values from the `utils.py` gets lost. The changes in the `config.ini` will persists future updates.
+### ATTENTION: Breaking changes! The config is now done in the `config.ini`. All values from the `utils.py` get lost. The changes in the `config.ini` will persists future updates.
 
 * Added: `self.unique_identifier` to the battery class. Used to identify a BMS when multiple BMS are connected - planned for future use by @mr-manuel
 * Added: Alert is triggered, when BMS communication is lost by @mr-manuel

etc/dbus-serialbattery/battery.py

@@ -106,9 +106,9 @@ def init_values(self):
         self.cells: List[Cell] = []
         self.control_charging = None
         self.control_voltage = None
-        self.bulk_requested = False
-        self.bulk_last_reached = 0
-        self.bulk_battery_voltage = None
+        self.soc_reset_requested = False
+        self.soc_reset_last_reached = 0
+        self.soc_reset_battery_voltage = None
         self.max_battery_voltage = None
         self.min_battery_voltage = None
         self.allow_max_voltage = True
@@ -244,34 +244,36 @@ def manage_charge_voltage(self) -> None:
             self.charge_mode = "Keep always max voltage"
 
     def prepare_voltage_management(self) -> None:
-        bulk_last_reached_days_ago = (
+        soc_reset_last_reached_days_ago = (
             0
-            if self.bulk_last_reached == 0
-            else (((int(time()) - self.bulk_last_reached) / 60 / 60 / 24))
+            if self.soc_reset_last_reached == 0
+            else (((int(time()) - self.soc_reset_last_reached) / 60 / 60 / 24))
         )
-        # set bulk_requested to True, if the days are over
+        # set soc_reset_requested to True, if the days are over
         # it gets set to False once the bulk voltage was reached once
         if (
-            utils.BULK_AFTER_DAYS is not False
-            and self.bulk_requested is False
+            utils.SOC_RESET_AFTER_DAYS is not False
+            and self.soc_reset_requested is False
             and self.allow_max_voltage
             and (
-                self.bulk_last_reached == 0
-                or utils.BULK_AFTER_DAYS < bulk_last_reached_days_ago
+                self.soc_reset_last_reached == 0
+                or utils.SOC_RESET_AFTER_DAYS < soc_reset_last_reached_days_ago
             )
         ):
             """
             logger.info(
-                f"set bulk_requested to True: first time (0) or {utils.BULK_AFTER_DAYS}"
-                + f" < {round(bulk_last_reached_days_ago, 2)}"
+                f"set soc_reset_requested to True: first time (0) or {utils.SOC_RESET_AFTER_DAYS}"
+                + f" < {round(soc_reset_last_reached_days_ago, 2)}"
             )
             """
-            self.bulk_requested = True
+            self.soc_reset_requested = True
 
-        self.bulk_battery_voltage = round(utils.BULK_CELL_VOLTAGE * self.cell_count, 2)
+        self.soc_reset_battery_voltage = round(
+            utils.SOC_RESET_VOLTAGE * self.cell_count, 2
+        )
 
-        if self.bulk_requested:
-            self.max_battery_voltage = self.bulk_battery_voltage
+        if self.soc_reset_requested:
+            self.max_battery_voltage = self.soc_reset_battery_voltage
         else:
             self.max_battery_voltage = round(
                 utils.MAX_CELL_VOLTAGE * self.cell_count, 2
@@ -302,26 +304,26 @@ def manage_charge_voltage_linear(self) -> None:
 
                     # calculate penalty sum to prevent single cell overcharge by using current cell voltage
                     if (
-                        self.max_battery_voltage != self.bulk_battery_voltage
+                        self.max_battery_voltage != self.soc_reset_battery_voltage
                         and voltage > utils.MAX_CELL_VOLTAGE
                     ):
                         # foundHighCellVoltage: reset to False is not needed, since it is recalculated every second
                         foundHighCellVoltage = True
                         penaltySum += voltage - utils.MAX_CELL_VOLTAGE
                     elif (
-                        self.max_battery_voltage == self.bulk_battery_voltage
-                        and voltage > utils.BULK_CELL_VOLTAGE
+                        self.max_battery_voltage == self.soc_reset_battery_voltage
+                        and voltage > utils.SOC_RESET_VOLTAGE
                     ):
                         # foundHighCellVoltage: reset to False is not needed, since it is recalculated every second
                         foundHighCellVoltage = True
-                        penaltySum += voltage - utils.BULK_CELL_VOLTAGE
+                        penaltySum += voltage - utils.SOC_RESET_VOLTAGE
 
             voltageDiff = self.get_max_cell_voltage() - self.get_min_cell_voltage()
 
             if self.max_voltage_start_time is None:
                 # start timer, if max voltage is reached and cells are balanced
                 if (
-                    self.max_battery_voltage - utils.VOLTAGE_DROP <= voltageSum
+                    self.max_battery_voltage <= voltageSum
                     and voltageDiff <= utils.CELL_VOLTAGE_DIFF_KEEP_MAX_VOLTAGE_UNTIL
                     and self.allow_max_voltage
                 ):
@@ -355,9 +357,7 @@ def manage_charge_voltage_linear(self) -> None:
                 # regardless of whether we were in absorption mode or not
                 if (
                     voltageSum
-                    < self.max_battery_voltage
-                    - utils.VOLTAGE_DROP
-                    - measurementToleranceVariation
+                    < self.max_battery_voltage - measurementToleranceVariation
                 ):
                     self.max_voltage_start_time = None
 
@@ -379,30 +379,32 @@ def manage_charge_voltage_linear(self) -> None:
 
                 self.charge_mode = (
                     "Bulk dynamic"
-                    # if self.max_voltage_start_time is None  # remove this line after testing
-                    if self.max_battery_voltage == self.bulk_battery_voltage
+                    if self.max_voltage_start_time is None
                     else "Absorption dynamic"
                 )
 
+                if self.max_battery_voltage == self.soc_reset_battery_voltage:
+                    self.charge_mode += " & SoC Reset"
+
             elif self.allow_max_voltage:
                 self.control_voltage = round(self.max_battery_voltage, 3)
                 self.charge_mode = (
-                    "Bulk"
-                    # if self.max_voltage_start_time is None  # remove this line after testing
-                    if self.max_battery_voltage == self.bulk_battery_voltage
-                    else "Absorption"
+                    "Bulk" if self.max_voltage_start_time is None else "Absorption"
                 )
 
+                if self.max_battery_voltage == self.soc_reset_battery_voltage:
+                    self.charge_mode += " & SoC Reset"
+
             else:
                 floatVoltage = round((utils.FLOAT_CELL_VOLTAGE * self.cell_count), 3)
                 chargeMode = "Float"
                 # reset bulk when going into float
-                if self.bulk_requested:
-                    # logger.info("set bulk_requested to False")
-                    self.bulk_requested = False
-                    # IDEA: Save "bulk_last_reached" in the dbus path com.victronenergy.settings
+                if self.soc_reset_requested:
+                    # logger.info("set soc_reset_requested to False")
+                    self.soc_reset_requested = False
+                    # IDEA: Save "soc_reset_last_reached" in the dbus path com.victronenergy.settings
                     # to make it restart persistent
-                    self.bulk_last_reached = current_time
+                    self.soc_reset_last_reached = current_time
                 if self.control_voltage:
                     # check if battery changed from bulk/absoprtion to float
                     if not self.charge_mode.startswith("Float"):
@@ -467,16 +469,16 @@ def manage_charge_voltage_linear(self) -> None:
             self.charge_mode_debug += (
                 f"\nlinear_cvl_last_set: {self.linear_cvl_last_set}"
             )
-            bulk_days_ago = round(
-                (current_time - self.bulk_last_reached) / 60 / 60 / 24, 2
+            soc_reset_days_ago = round(
+                (current_time - self.soc_reset_last_reached) / 60 / 60 / 24, 2
             )
-            bulk_in_days = round(utils.BULK_AFTER_DAYS - bulk_days_ago, 2)
-            self.charge_mode_debug += "\nbulk_last_reached: " + str(
+            soc_reset_in_days = round(utils.SOC_RESET_AFTER_DAYS - soc_reset_days_ago, 2)
+            self.charge_mode_debug += "\nsoc_reset_last_reached: " + str(
                 "Never"
-                if self.bulk_last_reached == 0
-                else str(bulk_days_ago)
+                if self.soc_reset_last_reached == 0
+                else str(soc_reset_days_ago)
                 + " days ago - next in "
-                + str(bulk_in_days)
+                + str(soc_reset_in_days)
                 + "days"
             )
             # """
@@ -515,10 +517,7 @@ def manage_charge_voltage_step(self) -> None:
 
             if self.max_voltage_start_time is None:
                 # check if max voltage is reached and start timer to keep max voltage
-                if (
-                    self.max_battery_voltage - utils.VOLTAGE_DROP <= voltageSum
-                    and self.allow_max_voltage
-                ):
+                if self.max_battery_voltage <= voltageSum and self.allow_max_voltage:
                     # example 2
                     self.max_voltage_start_time = current_time
 
@@ -550,6 +549,9 @@ def manage_charge_voltage_step(self) -> None:
                     "Bulk" if self.max_voltage_start_time is None else "Absorption"
                 )
 
+                if self.max_battery_voltage == self.soc_reset_battery_voltage:
+                    self.charge_mode += " & SoC Reset"
+
             else:
                 # check if battery changed from bulk/absoprtion to float
                 if not self.charge_mode.startswith("Float"):
@@ -558,10 +560,10 @@ def manage_charge_voltage_step(self) -> None:
                 self.control_voltage = utils.FLOAT_CELL_VOLTAGE * self.cell_count
                 self.charge_mode = "Float"
                 # reset bulk when going into float
-                if self.bulk_requested:
-                    # logger.info("set bulk_requested to False")
-                    self.bulk_requested = False
-                    self.bulk_last_reached = current_time
+                if self.soc_reset_requested:
+                    # logger.info("set soc_reset_requested to False")
+                    self.soc_reset_requested = False
+                    self.soc_reset_last_reached = current_time
 
             self.charge_mode += " (Step Mode)"
 

etc/dbus-serialbattery/bms/jkbms.py

@@ -175,11 +175,14 @@ def read_status_data(self):
         self.custom_field = tmp if tmp != "Input Us" else None
 
         # production date
-        offset = cellbyte_count + 164
-        tmp = unpack_from(">4s", self.get_data(status_data, b"\xB5", offset, 4))[
-            0
-        ].decode()
-        self.production = "20" + tmp + "01" if tmp and tmp != "" else None
+        try:
+            offset = cellbyte_count + 164
+            tmp = unpack_from(">4s", self.get_data(status_data, b"\xB5", offset, 4))[
+                0
+            ].decode()
+            self.production = "20" + tmp + "01" if tmp and tmp != "" else None
+        except UnicodeDecodeError:
+            self.production = None
 
         offset = cellbyte_count + 174
         self.version = unpack_from(
@@ -281,8 +284,8 @@ def to_protection_bits(self, byte_data):
         # MOSFET temperature alarm
         self.protection.temp_high_internal = 2 if is_bit_set(tmp[pos - 1]) else 0
         # charge over voltage alarm
-        # TODO: check if "self.bulk_requested is False" works,
-        # else use "self.bulk_last_reached < int(time()) - (60 * 60)"
+        # TODO: check if "self.soc_reset_requested is False" works,
+        # else use "self.soc_reset_last_reached < int(time()) - (60 * 60)"
         self.protection.voltage_high = 2 if is_bit_set(tmp[pos - 2]) else 0
         # discharge under voltage alarm
         self.protection.voltage_low = 2 if is_bit_set(tmp[pos - 3]) else 0

etc/dbus-serialbattery/bms/jkbms_brn.py

@@ -200,6 +200,8 @@ def decode_cellinfo_jk02(self):
         for t in TRANSLATE_CELL_INFO:
             self.translate(fb, t, self.bms_status, f32s=has32s)
         self.decode_warnings(fb)
+        logging.debug("decode_cellinfo_jk02(): self.frame_buffer")
+        logging.debug(self.frame_buffer)
         logging.debug(self.bms_status)
 
     def decode_settings_jk02(self):
@@ -255,6 +257,10 @@ def set_callback(self, callback):
         self._new_data_callback = callback
 
     def assemble_frame(self, data: bytearray):
+        logging.debug(
+            f"--> assemble_frame() -> self.frame_buffer (before extend) -> lenght:  {len(self.frame_buffer)}"
+        )
+        logging.debug(self.frame_buffer)
         if len(self.frame_buffer) > MAX_RESPONSE_SIZE:
             logging.info(
                 "data dropped because it alone was longer than max frame length"
@@ -267,6 +273,10 @@ def assemble_frame(self, data: bytearray):
 
         self.frame_buffer.extend(data)
 
+        logging.debug(
+            f"--> assemble_frame() -> self.frame_buffer (after extend) -> lenght:  {len(self.frame_buffer)}"
+        )
+        logging.debug(self.frame_buffer)
         if len(self.frame_buffer) >= MIN_RESPONSE_SIZE:
             # check crc; always at position 300, independent of
             # actual frame-lentgh, so crc up to 299
@@ -282,6 +292,8 @@ def assemble_frame(self, data: bytearray):
 
     def ncallback(self, sender: int, data: bytearray):
         logging.debug(f"--> NEW PACKAGE! lenght:  {len(data)}")
+        logging.debug("ncallback(): data")
+        logging.debug(data)
         self.assemble_frame(data)
 
     def crc(self, arr: bytearray, length: int) -> int: