I'm trying to figure what triggers the output produced by "I" to change.
For example, I forgot to close my top vent soon enough on my Akorn while starting my fire and overshot my 225F set point significantly. "I" remained stuck at 11.8% for probably the entire time I was over my set temp. I would have expected the "I" output to start dropping or go to 0 because it was obvious some positive amount of output wasn't required. My total output remained at 0%. So, I get that P and D were preventing "I" from winning the output battle. But, it still seemed like it could have (or should have) cleared itself after some period of time.
After thinking about "I" some more, could the output of "I" based on the area under the previous curve, rather than the current half period (the Integral)? I don't know. I'm still figuring out PID tuning.
EDIT: The original question was phrased poorly. Hopefully, this is clearer.
For example, I forgot to close my top vent soon enough on my Akorn while starting my fire and overshot my 225F set point significantly. "I" remained stuck at 11.8% for probably the entire time I was over my set temp. I would have expected the "I" output to start dropping or go to 0 because it was obvious some positive amount of output wasn't required. My total output remained at 0%. So, I get that P and D were preventing "I" from winning the output battle. But, it still seemed like it could have (or should have) cleared itself after some period of time.
After thinking about "I" some more, could the output of "I" based on the area under the previous curve, rather than the current half period (the Integral)? I don't know. I'm still figuring out PID tuning.
EDIT: The original question was phrased poorly. Hopefully, this is clearer.
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