Tuning PID from Log Files?

[wangyeee]

Is it possible to calculate proper PID values from AQ log files other than the methods described on the wiki? If it's not feasible, can I tell from the log how to change the current value, e.g. a too large tilt angle P needs to be reduced?

[LPR]

Read the info in the wiki.

http://autoquad.org/wiki/wiki/configuri ... de-tuning/

You can increase and decrease the Max Tilt angle many ways but changing just Tilt angle P does not change the Max angle. If you increase the Tilt P and Increase the out Max you can get a larger Tilt angle.

You can increase of decrease your Tilt angle by increasing or decreasing the Pitch and Roll scale factor on the config page in the QGC.

Larry

[wangyeee]

Thx Larry.
But I think I haven't make myself clear. During my tuning process, I found it was difficult to distinguish high/low frequency oscillation. The quad seems to be always oscillating at some frequency. So I want to find some clue from the log file.