Do no reset the accumulated error after temp change. Lower the coefs

custom_components/versatile_thermostat/const.py

@@ -227,13 +227,23 @@ class RegulationParamLight:
     """ Light parameters for regulation"""
     kp:float = 0.2
     ki:float = 0.05
+    k_ext:float = 0.05
+    offset_max:float = 1.5
+    stabilization_threshold:float = 0.1
+    accumulated_error_threshold:float = 10
+
+
+class RegulationParamMedium:
+    """ Light parameters for regulation"""
+    kp:float = 0.3
+    ki:float = 0.05
     k_ext:float = 0.1
     offset_max:float = 2
     stabilization_threshold:float = 0.1
     accumulated_error_threshold:float = 20
 
 
-class RegulationParamMedium:
+class RegulationParamStrong:
     """ Medium parameters for regulation"""
     kp:float = 0.4
     ki:float = 0.08
@@ -242,7 +252,8 @@ class RegulationParamMedium:
     stabilization_threshold:float = 0.1
     accumulated_error_threshold:float = 25
 
-class RegulationParamStrong:
+# Not used now
+class RegulationParamVeryStrong:
     """ Strong parameters for regulation"""
     kp:float = 0.6
     ki:float = 0.1

custom_components/versatile_thermostat/pi_algorithm.py

@@ -29,7 +29,8 @@ class PITemperatureRegulator:
     def set_target_temp(self, target_temp):
         """ Set the new target_temp"""
         self.target_temp = target_temp
-        self.accumulated_error = 0
+        # Do not reset the accumulated error
+        # self.accumulated_error = 0
 
     def calculate_regulated_temperature(self, internal_temp: float, external_temp:float): # pylint: disable=unused-argument
         """ Calculate a new target_temp given some temperature"""

tests/const.py

@@ -51,7 +51,7 @@ from custom_components.versatile_thermostat.const import (
     PRESET_AWAY_SUFFIX,
     CONF_CLIMATE,
     CONF_AUTO_REGULATION_MODE,
-    CONF_AUTO_REGULATION_MEDIUM,
+    CONF_AUTO_REGULATION_STRONG,
     CONF_AUTO_REGULATION_NONE,
     CONF_AUTO_REGULATION_DTEMP,
     CONF_AUTO_REGULATION_PERIOD_MIN
@@ -127,7 +127,7 @@ MOCK_TH_OVER_SWITCH_TPI_CONFIG = {
 MOCK_TH_OVER_CLIMATE_TYPE_CONFIG = {
     CONF_CLIMATE: "climate.mock_climate",
     CONF_AC_MODE: False,
-    CONF_AUTO_REGULATION_MODE: CONF_AUTO_REGULATION_MEDIUM,
+    CONF_AUTO_REGULATION_MODE: CONF_AUTO_REGULATION_STRONG,
     CONF_AUTO_REGULATION_DTEMP: 0.5,
     CONF_AUTO_REGULATION_PERIOD_MIN: 2
 }
@@ -141,7 +141,7 @@ MOCK_TH_OVER_CLIMATE_TYPE_NOT_REGULATED_CONFIG = {
 MOCK_TH_OVER_CLIMATE_TYPE_AC_CONFIG = {
     CONF_CLIMATE: "climate.mock_climate",
     CONF_AC_MODE: True,
-    CONF_AUTO_REGULATION_MODE: CONF_AUTO_REGULATION_MEDIUM,
+    CONF_AUTO_REGULATION_MODE: CONF_AUTO_REGULATION_STRONG,
     CONF_AUTO_REGULATION_DTEMP: 0.5,
     CONF_AUTO_REGULATION_PERIOD_MIN: 1
 }

tests/test_auto_regulation.py

@@ -306,7 +306,7 @@ async def test_over_climate_regulation_limitations(hass: HomeAssistant, skip_has
         ):
             await entity.async_set_temperature(temperature=17)
             assert entity.regulated_target_temp > entity.target_temperature
-            assert entity.regulated_target_temp == 18+0.5 # In medium we could go up to +3 degre. 0.7 without round_to_nearest
+            assert entity.regulated_target_temp == 18+1 # In strong we could go up to +3 degre. 0.7 without round_to_nearest
             old_regulated_temp = entity.regulated_target_temp
 
         # change temperature so that dtemp < 0.5 and time is > period_min (+ 3min)
@@ -331,4 +331,4 @@ async def test_over_climate_regulation_limitations(hass: HomeAssistant, skip_has
             # the regulated should have been done
             assert entity.regulated_target_temp != old_regulated_temp
             assert entity.regulated_target_temp > entity.target_temperature
-            assert entity.regulated_target_temp == 17 + 0.5 # 0.7 without round_to_nearest
+            assert entity.regulated_target_temp == 17 + 1 # 0.7 without round_to_nearest