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Quad tettering on one axis at hover

Posted by 1stnzbcxw733d on December 8, 2011 at 5:09pm

Hi,

My X quad loaded with 2.0.55 teeters on a single axis during hover.  I have increased the gain of P values for both rate and stabilisation which is has made the quad more responsive, however teetering remains.   Aside from this I am pleased with the flighability of the craft, with laterally motion including yaw being crisp and responsive. 

It is worth noting that on this issue was not present in 2.0.54 using default PIDs

I have attached a short, impromptu video of the teetering issue.  

Any suggestions would be appreciated.

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Tags: pids, oscillating, oscillation, stabilization, stable, tuning
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  • Developer
    Randy December 8, 2011 at 5:24pm

    First of all, I like the head-mounted camera as a good way to get video without having to drag a friend along.  I think I might get one of those.

     

    Not sure if it's related but there was a small bug in the Attitude control for pitch in trunk that I fixed last night.  It was using the roll controller's I term.  Not sure if this snuck it's way into 2.0.54 or was introduced afterwards but that could explain why you see an issue only on one axis.

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