If you enjoy our forum, why not join us? :) Login removes all the ads too! Click here to register in a few simple steps

Login to remove this ad | Register Here
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Unwanted pitch up
#1
On one of my quads I get unwanted pitch up when I do a 180 turn at speed. I have to push stick forward to keep it from doing that. Another of my quads does turns perfectly but I can't copy the PIDs since one is using 5 inch props and the other 4 inch.
#2
I might suggest reading up on PID tuning.  You didn't really give us much to go on.  Lots (and I mean LOTS) of info out there on PID tuning, troubleshooting, etc.

Around the 4:00 mark, Joshua mentions that his quad is pitching 'up' after a few maneuvers.


~illushinz (CenFloFPV)

FPV noob.  
Arris 250FPV, Naze32 Rev6 Acro
ZMR250, Naze32 Rev5 Acro

Youtube
Twitter
Instagram
Reply
#3
(23-Nov-2016, 03:14 AM)illushinz Wrote: I might suggest reading up on PID tuning.  You didn't really give us much to go on.  Lots (and I mean LOTS) of info out there on PID tuning, troubleshooting, etc.

Around the 4:00 mark, Joshua mentions that his quad is pitching 'up' after a few maneuvers.



I've actually done a pretty good bit of reading and watched that video. I don't remember what he said so I'll go back and watch it again.

Thanks,
Randy
Reply
Login to remove this ad | Register Here
#4
I'm also new to the whole PID tuning thing, but the first thing I'd try is lowering the yaw pitch rate
Reply
#5
stupid question... can it be related to center of gravity ? (ie battery placed on the back, you do the spin your "front" goes up, you correct via stick input)?
All the best
Grzesiek (Grisha/ Greg)

Curently flyable: Nox 5, Nox 3, Minimalist 112, Scrap at the moment... nothing is flyable
Bench / in progres: fixing Nox 5, Nox 3, Minimalist 112, Scrap
thinking about building: 450

[-] The following 1 user Likes Grisha0's post:
  • sloscotty
Reply
#6
Assuming the center of gravity is more or less correct, solution should either be to increase pitch P or pitch I.

Unless there's other problems which could be checked for in logs. Like one of the rear motors lacking response time or something on quick throttle-up (i imagine you kind of 'jump' into corners with pretty low throttle). In case this happens at zero throttle you could also increase min throttle.

Btw what firmware? Maybe airmode off?
Reply
Login to remove this ad | Register Here


Possibly Related Threads...
Thread Author Replies Views Last Post
  Question about tuning the different parts of PID controller (Roll, Pitch, Yaw) BlackB3ard 1 686 25-Mar-2016, 09:14 PM
Last Post: Dal75