Comment by Peter Meister on October 7, 2012 at 9:09am

Manfred! Well done! That looked promising, would you be willing to share your configuration file for others to try ?

Congrats on a great flight!

Comment by Peter Meister on October 7, 2012 at 9:11am

Also the param file would be great to review !

Comment by Rana on October 7, 2012 at 10:25am

Hats off for all your great efforts !, Pls share the tlog file and parameters file as well.

Comment by Manfred Dickgiesser on October 7, 2012 at 12:06pm

I was impressed too how well the little T-Rex 450 preformed in the gusty wind....

 

The PDI I used:

Be carefull with the I term and the I max. As you can see I reduced that very much.

The I force ramps up very fast to I max if the heli can’t reach the target in a certain time, because of a wind pushing it out and then you get that overshoot or oscillation. 

The D force gives an initial push and then ramps down fast, like you kick a ball into the target; this is much more calming. The P force is just proportional to the distance to the target.

With lower values it might get pushed a bit further of target but it comes much softer back and the system calms down quickly. 

Comment by Manfred Dickgiesser on October 7, 2012 at 12:45pm

I dont know how to share a file in here......

Comment by Hein on October 7, 2012 at 12:50pm

Hi Manfred,

That is awesome.  You have not done test on a trex600 as yet?  I suspect the PID values should be very much the same..... 

 

Anybody that has tried it on a trex600?  Please share also PID values...

 

Greetings,

Hein

Comment by Manfred Dickgiesser on October 7, 2012 at 4:23pm

@ Hein

No I haven’t got a T-Rex 600 yet, my eyes are on a T-Rex 800 for the future.

But I think your PID would look a bit different, more weight more    P  and D    I think, depending also Flybarless or not. Be careful with the  I term  and the   I max.

Comment by Rana on October 8, 2012 at 9:00am

Manfred, you are the only known person in the world who has done such great efforts on APM with Heli flight testing. Thanks for sharing your parameters and subsequent suggestions / tips.

You won't be able to attach anything here in this blog. Though "discussions" have no such limitation, you may open a discussion with similar subject and attach tlog there.

Comment by Peter Meister on October 8, 2012 at 10:34am

Manfred, Thanks my friend! Really appreciate it, it will help a lot of us who are attempting similar with our TREX 450s!! 

Way to go - and thanks again for posting it!

Comment by Manfred Dickgiesser on October 8, 2012 at 11:21am

Thank you very much for your encouraging comments

At the next fine weather with hopefully less wind, I’ll fly a more demanding mission and will post it then with everything attached, the mission file and flight logs.

Comment

• ‹ Previous
• 1
• 2
• 3
• Next ›
• Page