ArduPlane Bugs and Erratic Behavior?

I'm trying to shake out the bugs in my drone and I came across a few issues.  I have the MPU6000 scaling issue, so I'm not sure how much of this might be related to that problem.

1.  Sometimes when I flip on my transmitter the throttle immediately gears up to about 80%.  Maybe I'm not waiting long enough?  It usually resolves after a bit of fooling around, but this is obviously a major safety issue.  If the prop were on the plane I'd have probably already lost a plane.

2.  In inverted position the rudder thrashes around violently when the plane rolls slightly to the right or left.

3.  In the inverted position with the APM in stabilize mode the elevator is positioned to pitch the plane up.  So stabilize mode apparently doesn't recognize inverted flight.  In any case, doing a loop isn't the proper way to right an inverted plane.  It should roll upright.

Any help or tips appreciated.  I'm happy to dig into the code if someone can point me to the right section.  I'm eager to fly using the APM, but I want to fix these problems, or at least understand them, first.

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • I got the 2.34 firmware, which fixes the scaling, and I still have the same odd behavior.

    I also noticed the rudder thrashes when the plane is pointed straight up, which makes sense.  Yawing over and rolling out is the right way to get out of that position.

This reply was deleted.

Activity

Gremsy liked Gremsy's profile
Mar 12
DIY Robocars via Twitter
RT @chr1sa: Donkeycar 4.4 released with tons of new features, including path learning (useful with GPS outdoors), better Web and Lidar supp…
Nov 27, 2022
DIY Robocars via Twitter
RT @NXP: We are already biting our nails in anticipation of the #NXPCupEMEA challenge! 😉 Did you know there are great cash prizes to be won…
Nov 24, 2022
DIY Robocars via Twitter
RT @gclue_akira: レースまであと3日。今回のコースは激ムズかも。あと一歩 #jetracer https://t.co/GKcEjImQ3t
Nov 24, 2022
DIY Robocars via Twitter
UC Berkeley's DIY robocar program https://roar.berkeley.edu/
Nov 24, 2022
DIY Robocars via Twitter
RT @chr1sa: The next @DIYRobocars autonomous car race at @circuitlaunch will be on Sat, Dec 10. Thrills, spills and a Brazilian BBQ. Fun…
Nov 24, 2022
DIY Robocars via Twitter
RT @arthiak_tc: Donkey car platform ... Still training uses behavioral cloning #TCXpo #diyrobocar @OttawaAVGroup https://t.co/PHBYwlFlnE
Nov 20, 2022
DIY Robocars via Twitter
RT @emurmur77: Points for style. @donkeycar racing in @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/Y2hMyj1…
Nov 20, 2022
DIY Robocars via Twitter
RT @SmallpixelCar: Going to @diyrobocars race at @UCSDJacobs https://t.co/Rrf9vDJ8TJ
Nov 8, 2022
DIY Robocars via Twitter
RT @SmallpixelCar: Race @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/kK686Hb9Ej
Nov 8, 2022
DIY Robocars via Twitter
RT @PiWarsRobotics: Presenting: the Hacky Racers Robotic Racing Series in collaboration with #PiWars. Find out more and register your inter…
Oct 23, 2022
DIY Robocars via Twitter
RT @Hacky_Racers: There will be three classes at this event: A4, A2, and Hacky Racer! A4 and A2 are based around UK paper sizing and existi…
Oct 23, 2022
DIY Robocars via Twitter
Oct 23, 2022
DIY Robocars via Twitter
Oct 19, 2022
DIY Robocars via Twitter
Oct 18, 2022
DIY Robocars via Twitter
RT @NeaveEng: Calling all UK based folks interested in @diyrobocars, @f1tenth, @donkey_car, and similar robot racing competitions! @hacky_r…
Oct 13, 2022
More…