Discussions

[HELP]ArduPlane no more Throttle after switch to any assisted mode

Posted by herve pellarin on November 23, 2015 at 5:05am

hi folks,

finishing my plane, and did some testing.

I am facing one issue regarding throttle.

In manual mode everything is fine, when i switch to stabilize mode, no more throttle, same for rtl.

am i missing something? first time it does that to me.

thxx for your help and your time.

best regards

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

Join diydrones

Email me when people reply –

Replies

Richard Kennedy November 30, 2015 at 11:49am

re- In manual mode everything is fine, when i switch to stabilize mode, no more throttle, same for rtl.

Are you talking about in flight or on the bench? That is normal on the bench as if apm detects it's not moving aka on the ground as a safety feature it will not throttle up. I had this problem trying to set my cruise throttle percentage with a nitro engine. I ended up driving around the block with it in stabilize mode just so I could see were 45% cruise throttle was.
- herve pellarin > Richard Kennedy November 30, 2015 at 12:37pm
  
  yep that s what i was sayin, i ll try maybe tomorrow see how it goes.
  
  thxx a lot for your time!
herve pellarin November 23, 2015 at 9:51am

here is what i do:

power the plane, switch in manual flight mode , throttle works.

lets say i move the thro stick to 50% then switch to stabilized mode, after two sec, throttle is cut, and if i switch back to manual mode, can t get the throttle to work, unless i unplug and replug the lipo

any ideas? drives me mad
- Developer
  
  Bill Bonney > herve pellarin November 23, 2015 at 10:54am
  
  I'd check this http://plane.ardupilot.com/wiki/arming-your-plane/
  
  Also if you post a log it's much easier to help debug these types of issues.
  - herve pellarin > Bill Bonney November 23, 2015 at 11:53pm
    
    hi,
    
    so i ve did a new test, and (from your link) i ve seen that i could disable arming_require, wich i did.
    
    i can fly in manual mode still, but when i switch to any assisted mode, throttle gets cut.
    
    here is the log, thx for your time, tell me if you need anything else, if you use skype , you can reach me with the id no-comp
    
    thx a lot for your time
    
    best regards
    
    2015-11-24 08-46-56.log
    
    2015-11-24 08-43-43.tlog
    
    https://storage.ning.com/topology/rest/1.0/file/get/3702726683?profile=original
    - Andre K. > herve pellarin November 24, 2015 at 1:54pm
      
      strange, my APM planner crashed on that log right after "unknown data value found: Q" -what device is it from /how did you produce that .log ? (maybe converted a .bin) ?
      - herve pellarin > Andre K. November 24, 2015 at 11:54pm
        
        hi andré,
        
        i ve cleaned all the logs, and regenerated a new one, here we go.
        
        thank you for your time
        
        best regards
        
        2015-11-25 08-45-28 1.bin
        
        2015-11-25 08-45-28 1.bin.log
        
        Andre K. > herve pellarin November 25, 2015 at 6:48am
        
        the attached log contains only minimum throttle, in and out, nothing special.
        
        if you could record this:, takeoff in manual, switch to stabilize, then manual and land.
        
        (just a short reproduction of the problem)
        
        alternatively, do it without actual flight , just arm in manual , add 15% throttle, switch to stabilize.
        
        The issue you report does not make much sense, because Stabilize is not an autothrottle mode only limited by THR_MIN and THR_MAX, if you have seen that in FBWB, AUTO, CRUISE, etc it could be caused by error in aurspeed, altitude , etc..
        
        Your THR_MIN is 50 , try to lower it to 0 first, otherwise it won't output less than MIN(50) annd more than MAX(75) in stabilize.
        
        herve pellarin > Andre K. November 25, 2015 at 7:09am
        
        hi andré,
        
        thx a lot for your time.
        
        on another forum i got a response saying that if cruise mode is not working it s simply because the plane is not moving because i am doing static test.
        
        if i was flying, so moving, it would work.
        
        can you confirm?
        
        thx again for your time
        
        best regards
        
        Andre K. > herve pellarin November 25, 2015 at 9:05am
        
        I am not that familiar with the cruise mode logic , what you pointed out . that stabilize stops throttle, is best for troubleshooting as stabilize is the most basic mode that can influence throttle output - so check THR_MIN like I suggested first.