Idea to help tuning.

 

Problem:-

I mostly fly on my own which makes it difficult to use a laptop and change PIDs in flight so I usually land to upload a new value. If I trusted my settings more perhaps I could go ‘heads down’. My flying field is not great so frequent landings and T/O is increasing the risk, and using battery.

Suggestion:-

Within Mission Planner have a routine that would increase selected PIDs, perhaps using a temporary flight mode, or toggling a flight mode switch. The MP voice should be used while the plane flies a figure 8 overhead.

I would envisage the voice output something like this:-

1 “Tuning mode active on roll servo ‘P’ value”

2 “currently 0.4, setting 0.6, toggle mode switch to accept”

3 “0.6 set, toggle any time to revert”

After perhaps a minute for you to observe

4 “toggle to revert to 0.4 else keeping  0.6 in 5,4,3,2,1”.

Then back to 1.

Tuning ends when a revert toggle is seen. Perhaps then move to the next selected PID.

As a refinement perhaps the tuning routine could check for oscillations and advise.

 

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Replies

  • Moderator

    Hi Vince, I normally flip into loiter (which I'd previously tested) and then change a setting. If in a repeating Auto mission and it's done the loop a few times then I can change something and go back and watch the for difference. I'm using a relatively slow stable plane which while in a navigating mode I can easily take my eyes off it for a minute or so. Sometimes I get a flying buddy (if available) to just keep an eye out and report if anything goes awry while I'm concentrating on the laptop.

  • Or simpler, just the possibility to use a few RC channels to set parameter values within given ranges. A button on the ground station freezes and writes the dynamic values into the parameters when done. In failsafe, the parameters are reverted to the previous frozen or manually set values.
    Regards, Soren
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