Files
brewpi/components/pid/temp_controller.py
T
jensandClaude Sonnet 4.6 ac8de9da55 Add sensor variance config and smooth heat-rate estimate
[Sensor] - replace TempSensorSim's hardcoded k_noise with configurable
temp_offset/variance, accept **kwargs on Max31865 too so both sensors
share a constructor signature usable from TempSensorFactory.create()
[Temp Controller] - low-pass filter the backward-difference heat-rate
estimate (alpha=0.1) in both temp_controller.py and
temp_controller_smith.py instead of using the raw, noisy derivative
[Pot] - drop kn from demo_pot.py's params, matching the unused-field
removal already made to pot.py itself

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-19 15:47:24 +02:00

31 lines
954 B
Python

from components.pid.temp_controller_base import TempControllerBase
class TempController(TempControllerBase):
def __init__(self, dt, params):
TempControllerBase.__init__(self, dt, params)
self.dt = dt
self.last_theta_ist = 20
self.heatrate_ist = 0
def process(self):
# Process Kalman
self.theta_ist = self.theta_ist_set
heatrate = (self.theta_ist - self.last_theta_ist)/self.dt*60
alpha = 0.1
self.heatrate_ist = (1-alpha) * self.heatrate_ist + alpha*heatrate
self.last_theta_ist = self.theta_ist
# Compensate for max heat rate to reduce overshoot
if self.heatrate_soll_set > 0:
self.pid_hold.scale(1.0/self.heatrate_soll_set)
self.heatrate_soll = self.heatrate_soll_set * self.pid_hold.get_y()
theta_err = self.theta_soll_set - self.theta_ist
heatrate_err = self.heatrate_soll - self.heatrate_ist
diff = self.theta_soll_set - self.theta_ist
self.process_fsm(diff)
self.process_pid(theta_err, heatrate_err)