Testing the windup-fix rework live against sude/sud_0030.json surfaced a
distinct bug: a HOLD overshoot from grain-fill-in cooling never decayed -
process_pid()'s pid_outer_y floor clamped to exactly 0.0, so pid_inner
fought the pot's own ambient loss to hold the overshot temperature flat
instead of declining back to setpoint (see docs/overshoot2.png).
Replace the hardcoded 0.0 floor with a configurable Outer.y_hold_min
(default 0.0, backward compatible), set to -0.1 in config.json, both
.tpl templates, and the demo scripts - small enough to avoid
reintroducing the bb5af3c limit cycle while letting HOLD request a
gentle decline matching passive ambient cooling.
Adds TestHoldOvershootRecoversToSetpoint and documents the finding in
docs/overshoot_hold_windup.md's Follow-up section and
components/pid/TODO.md. Confirmed against a live sud_0030 re-run, not
just the unit test.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M2ierBoxW3v7nUbDw3M2pE
120 lines
1.8 KiB
JSON
120 lines
1.8 KiB
JSON
{
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"Name": "Sud-0030",
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"Description": "Münchner Hell",
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"pot": {
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"grain_mass": 0,
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"water_mass": 22,
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"volumen": 30
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},
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"default": {
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"step": {
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"descr": "Put description here",
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"user_message": "Put user message here",
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"user_wait_for_continue": false,
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"pot": {
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"grain_mass": 5.21,
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"water_mass": 22
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},
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"temperature": 0,
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"ramp": {
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"rate": 1.0,
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"stirrer": {
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"speed": 50,
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"interval_time": 0,
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"on_ratio": 1.0
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}
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},
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"hold": {
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"duration": 0,
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"stirrer": {
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"speed": 30,
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"interval_time": 60,
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"on_ratio": 0.5
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}
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}
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}
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},
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"steps": [
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{
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"pot": {
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"grain_mass": 0
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},
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"descr": "Aufheizen",
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"temperature": 57,
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"ramp": {
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"rate": 1.5,
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"stirrer": {
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"speed": 75
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}
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}
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},
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{
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"pot": {
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"grain_mass": 0
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},
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"descr": "Einmaischen",
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"user_message": "Bitte Malz einfüllen und bestätigen",
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"user_wait_for_continue": true,
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"hold": {
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"stirrer": {
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"speed": 0
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}
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}
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},
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{
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"descr": "1. Rast",
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"temperature": 55,
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"hold": {
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"duration": 20
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}
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},
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{
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"descr": "Glucose-Rast",
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"temperature": 63,
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"ramp": {
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"rate": 1.0
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},
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"hold": {
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"duration": 40,
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"stirrer": {
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"speed": 20,
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"interval_time": 90,
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"on_ratio": 0.8
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}
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}
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},
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{
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"descr": "Verzuckerungs-Rast",
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"temperature": 72,
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"ramp": {
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"rate": 1.0
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},
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"hold": {
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"duration": 30,
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"stirrer": {
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"speed": 35,
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"interval_time": 120
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}
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}
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},
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{
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"pot": {
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"water_mass": 20
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},
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"descr": "Abmaischen",
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"user_message": "Quittieren zum Abmaischen",
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"user_wait_for_continue": true,
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"temperature": 76,
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"ramp": {
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"rate": 1.0
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},
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"hold": {
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"duration": 30,
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"stirrer": {
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"speed": 50
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}
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}
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}
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]
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}
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