This is a discussion re the ArduCopter-3.1 AutoTune feature. A place for people to report successes and failures, ask questions and get answers.
The AutoTune wiki page is here.
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Replies
hi, is there a chance yaw autotune is coming?
Hi Artem,
Yes there is but we have been focusing on ironing out the kinks in the roll and pitch tune. So it isn't looking like it will be in the next release. It is a high priority though.
Hi Brandon,
Could you turn on motor logging and INS. I would like to see your vibration performance and what your throttle is going to during each test.
It looks like autotune is reaching it's angle limit before finishing the test but it is hard to tell why.
Thanks.
Thank you!
Hi Artem,
Yes we will do this but we are stretched pretty thin and would like to get auto-tune working well for roll and pitch before extending it to yaw and alt-hold.
Hi there,
I have a success to report. Maidened my mapping quad today (680mm, CF frame, 3509 380kv motors running on 6s 4-8ah, 15x5 CF Props). Went straight onto autotune after checking out basic controls. Autotune ran fine, although I think I made the mistake of invoking it too late (about a minute into the flight) which gave a bit of bounce right at the start of the next flight when the battery voltage was a bit higher. I ran autotune for a second time right at the start of flight two and that sorted things out.
I thought this report might be handy for the devs as autotune is not supposed to handle larger quads with low kv motors and big props that well. I didn't have any problems with it, but I did pay a LOT of attention to dealing with vibration while leaving the Pixhawk mount sufficiently stiff.
Thank you all for the awesome work you do!
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Hi There,
I've got myself a problem/issue which I just can't fix or get it working.
The drone is just not getting into Autotune mode, I've tried everything but It just refuses.
I have done the same on different quads which is working fine, but on this one... poeh.
I have a APM 2.5 Flightcontroller within a Discovery frame with a 30AMP ESC and 700KV motor setup.
Today I did a full erase of the Eeprom and Factory reset and worked my way around through the entire wizard and put every in place.
Started off with the default parameters where I found that it oscillates a bit so I tuned down the RateRoll P from 0,1500 to 0.1080 where it stopped and felt a lot better. It was actually flying not bad apart from a couple of twitches when doing some stronger Elevator or roll inputs.
I went into the field and put the drone in ALT Hold mode, then switched to autotune mode but nothing happened.
I've tried things over 2 months finding out what may be the case, but now I'm all of options.
Which factors can disable going into autotune?
If there is more information needed, please let me know, Il provide everything I can.
Thank you so much.
Regards
I had this happen a few times and found out it was a silly thing. Over time my Turnigy Radio calibration for center changed ever so slightly so i never noticed it while flying. But the APM and Pixhawk did. So I re calibrated in Mission planner and there it was . Auto tune started and completed. So I would suggest to try re calibrate your radio in Mission Planner and go right into an auto tune.
Just a suggestion from recent experience.
This is definitely one of the major reasons auto-tune doesn't start. Along the same lines. If you set the dead zone on the RC inputs too small you can also have trouble starting auto-tune.
Hi Jim.
Thank you for your quick reply...I'll add some more detail, I didn't want to over inform you with too much details haha.
Oke here we go:
I have a Frsky Taranis TX (in which i'm very very proud of) with a ImmersionRC 433Mhz DJT module, The RX on the Discovery is an Immersion 8CH High diversity Receiver. Most important is probably that everything is connected by PPM muxed.
With this setup, I configued all the 8 channels which are also working in the Mission planner:
So, does the channel 7/8 need a pshyical Servolead because of the Autotune? I would be very suprised because the Channel is working properly in the missionplanner.
Hope it helps, thanks a lot! :)
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