Arducopter slow reactions

Wich parameter do i have to change to get the Copter more faster on RC inputs?
I have to pull full forward to move forward, backwards its fast enough.   
Flight is stable.

Thanks,

heckmic

Tags: Arducopter, PID, slow, stable

Views: 282

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DeveloperPermalink Reply by jasonshort on September 19, 2011 at 11:52am

Stabilize P controls how fast your control input is used to rotate the copter.

Permalink Reply by heckmic on September 19, 2011 at 11:55am

The Problem is, when i use a bit more P it starts oscilating.

Permalink Reply by Michael Pursifull on September 19, 2011 at 2:47pm

See AC2_Tweaks

 

"My copter is too sluggish : Lower your gain in RATE_ROLL_P, RATE_PITCH_P, and or raise your STABILIZE_ROLL_P, STABILIZE_PITCH_P gain." If adding Stabilize P is not good for you, try lowering gain in Rate P?

 

Also, see the OpenPilot PID Tuning video for some examples of how PID tuning results in, or eliminates oscillation. 

Permalink Reply by heckmic on September 19, 2011 at 11:46pm

Thanks for your reply.

 

Which parameter is it in the new Gui?

 

Stabilize Roll (P, I, IMAX*100)

or

Rate Roll

Permalink Reply by Michael Pursifull on September 19, 2011 at 11:56pm

From your symptoms, either Stab P++ or Rate P--. Or both.

Permalink Reply by Michael Pursifull on September 19, 2011 at 11:58pm

I might have that mixed up, someone let me know if I am confused.

Permalink Reply by Michael Pursifull on September 20, 2011 at 12:00am

Are you only changing roll? Pitch is forward, backwards, but I always keep pitch and roll the same.

Permalink Reply by heckmic on September 20, 2011 at 12:02am

No. I changed both. Same Values. With this P value its stable but reacts very slow on RC inputs. What is ment with P-- or P++ (increase or decrease?). The Problem is, when i use a bit more P it gets oscilating an when i use less P its getting more slower on RC inputs.

 

Permalink Reply by Michael Pursifull on September 20, 2011 at 12:04am

Which "P" are you increasing, stabilize or rate?

Permalink Reply by heckmic on September 20, 2011 at 12:07am

stabilize

Permalink Reply by Michael Pursifull on September 20, 2011 at 12:08am

ok, try reducing your rate p then. Change your stab p back to no oscillations, then begin reducing rate p.

Permalink Reply by Michael Pursifull on September 20, 2011 at 12:05am

Also, did you watch that video? He shows sluggish input in one of his examples.

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