Hi, DIY Drones community.

Yesterday I tested new ArduCopter firmware V3.0.1 and got crash of my jD-Simplex Hexa KIT :( when used RTL.

After some flew around I turned on RTL mode and everything seemed to be ok. Copter came to stat point and hovered on it. But then I turned around in RTL mode with Yaw and fatal dancing started. This is the video from the copter - http://youtu.be/ufKxiK2ipn4.

At the end I switched to Stabilize mode, but it was to late.

 

I have tried to analyze logs from APM, but unfortunately can't understand the reason of this crash.

I see some strange vibration on PitchIn, but how can I understand the reason of it?

3691043945?profile=original

All logs from APM are attached.

Any help and/or thoughts would be greatly appreciated.

2013-07-27 22-23 11.kmz

2013-07-27 22-23 11.log

2013-07-27 22-23 11.log.gpx

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

Join diydrones

Email me when people reply –

Replies

  • This precise thing happened to me several times. My new H-quad, running 3.0.1 was pointed away from me when I invoked RTL for testing. It yawed sharply around then started a deep combined pitch/roll oscillation. The oscillations would not damp. It started fluttering down like a leaf. Shortly before reaching the ground I was able to switch to stabilize, so it leveled out and hit flat with no damage. A third time I invoked RTL and the quad was pointed at me, so no yaw and no roll/pitch oscillations. 

    My quad is about 1.9 kg with slow 14" props, so I suspect it's a tuning issue. But your video looks very much like mine. And your graph looks like mine also. My departure from normal began just after RTL started.

    I'm still looking for an answer and working on detailed tuning. Loiter and AltHold seem solid, as does Stabilize, pretty much. But if I do abrupt control movements things get shaky. My RTL used to be the one mode I could count on in earlier releases, so this is a rude surprise.

  • I've not seen 0.0 for RATE_RLL_I and RATE_PIT_I - why that value?

  • I am having a similar issue. i was in auto mode and after the last waypoint I programmed RTL - then the spiralling started. Webt to stabilize and saved the rig. Will try to reset the magnetometer, then set declination and calibrate the magn auto during manual flight. But until furter notice I will be careful when using RTL.
This reply was deleted.

Activity

DIY Drones via Twitter
RT @chr1sa: After more than a year of only virtual races, @DIYRobocars returns to the newly renovated @circuitlaunch on May 22 for the resu…
yesterday
DIY Robocars via Twitter
RT @DAVGtech: And now available with LiDAR 🔥 https://twitter.com/Heavy02011/status/1381137016381964293
yesterday
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #9 - #ParkingLotNerds #thunderhillracetrack, CA Join us for the next race April 24th,…
yesterday
DIY Robocars via Twitter
RT @DWalmroth: Weather's finally cooperating, looking forward to racing 1:10 scale autonomous cars outdoors again! @diyrobocars, @NVIDIAEm…
Wednesday
DIY Robocars via Twitter
RT @AIDRI_: I finally succeeded in optimizing the trajectory and speed of a car on a #racetrack. Next step: implement a 2d controller and…
Apr 7
DIY Robocars via Twitter
@jetdillo @circuitlaunch Actually the second *in person* event in a year. We do virtual races every month
Apr 2
DIY Robocars via Twitter
Update: we're moving it back one day to Sunday (the 4th) at 11:00am instead
Apr 2
DIY Robocars via Twitter
@GrantEMoe @circuitlaunch Update: we're doing it on Sunday (4th) at 11:00am instead
Apr 2
Laurie J. Troy liked Jasper Kueppers's profile
Apr 1
DIY Robocars via Twitter
RT @chr1sa: Maybe we should have a mini @DIYRobocars race in our lower school's playground https://t.co/xLFeua1R6X
Mar 29
DIY Robocars via Twitter
If anybody wants to join us for an informal outdoors hack/race we're going to be meeting at the @CircuitLaunch park… https://twitter.com/i/web/status/1375907409223249923
Mar 27
DIY Robocars via Twitter
RT @SmallpixelCar: Ready to reopen, innovation has to continue. Inside/outside, LiDAR/GPS, race/delivery https://t.co/jpmvttoHEd
Mar 26
DIY Drones via Twitter
RT @DAVGtech: By far best race yet! Congratulations to the winner @Heavy02011 🥇🏆🍾👏👏👏 @diyrobocars @donkey_car @NVIDIAEmbedded https://t.co/…
Mar 20
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #8 - #ParkingLotNerds ⁦@DAVGtech⁩ ⁦@DWalmroth⁩ ⁦@OttawaAVGroup⁩ - join us tomorrow h…
Mar 20
DIY Drones via Twitter
RT @mrpollo: 11 years ago, the pxIMU was announced to the world on @DIYDrones, and it changed the life of many (mine included). The followi…
Mar 18
DIY Drones via Twitter
RT @ishcahealth: This is awesome! ☘️ @DroneDJ @DIYDrones @WorkerDrones @DroneMedia_UK @dublinaviation https://twitter.com/media_ireland/status/1372077878536462336
Mar 18
More…