Quadrocopter problems - flying in the wind

[Karas]

Today I broke my copter. There are problems in the sense that the copter in the wind tilted against the wind. Even rewinds to the back and falls down. It happened to me three times, but until today I broke it. I found that after releasing then the copter tilted against the wind. All this is happening while the ACC (LEVEL).Crius MultiWii SE v2.2
Please help me.

[haydent]

hard to tell without knowing how windy it was and what they can handle as i havnt pushed mine.

so are you saying it fell while leaning into the wind or after/while leveling after wind correction ?

[Karas]

The wind was around 2-3 m / s Copter is tilted against the wind and when you are aligned so rewinds to the back and falls down. He does this with active stabilization.

[tovrin]

with no wind and level mode activated, does your copter hold position fairly well?

what version of the software are you running?

[Karas]

Yes, no wind copter hold the position well. No problem with keeping the position or height is not. Only the wind that makes the problem.I have firmware v2.2.

[tovrin]

I'm going to guess you have a vibration issue somewhere and the wind is multiplying it.

[Karas]

vibration? Why do you think? Copter not oscillate. I have switched to 48 Hz filter and balanced propeller. It is of course possible that there are some vibrations, but does not seem to me that it would cause overturning.

[tovrin]

start the motors with gui connected and check for vibrations on the gui.

[haydent]

you'd think you would see them in level with no wind though. maybe the min throttle command is too low, and when it backs off after correcting for wind it essential stalls one side, try increasing it so its significantly higher without it lifting off at idle. just a thought. (the other thing i almost wrote was that it could be pid related or sensor orientation related, but i doubt it would hover in that later case) does it do it in the wind with stable off ?

[Karas]

I understand. But unfortunately I do not know how to set a minimum level engines.

[Karas]

But it is strange that if you run a control and the copter itself tilted against the wind. Does not it always, but I think it would not do. Without the wind it flies well.When disabled stabilize it in the wind flies well, but I'm afraid to fly high.I think it will be somewhere in the settings of the PID LEVEL.My Settings LEVEL: P = 7.0, I = 0.010 D = 90I change some value?

[tovrin]

Code: Select all

#define MINTHROTTLE 1064

in config.h you can use this statement to adjust your min throttle settings. I think there is a good chance he is right, especially if you believe there is little vibrational issues.

[Karas]

Code: Select all

#define MINTHROTTLE 1064

in config.h you can use this statement to adjust your min throttle settings. I think there is a good chance he is right, especially if you believe there is little vibrational issues.

So this will do exactly what?And where are we in that file I write?

[Karas]

So I found some information about it. I can define the line when I ESC Turnigy Plush 18?

[tovrin]

this piece of code controls the speed that your motors spin at when idling. what was suggested is that this value might be too low and when its tilted and trying to compensate for wind a motor is shutting off.

this code is near the top of config.h and can be changed to any # between 900-2000 but i would suggest upping it by 20-30 and testing each time. what you dont want is your motor spinning so fast at idle they are trying to pick the copter up.

something else i am curious about is how you calibrated your ESC's, for a multirotor all ESCs have to have their min/max input settings matched exactly, for MWC, this is done via a command within config.h called

Code: Select all

//#define ESC_CALIB_CANNOT_FLY 

but you have to be careful, remove all props before doing this in case of fault (if not your copter could very well launch itself at full throttle into your laptop, ask me how i know)

remove the // from the line above, load the sketch to your copter, remove the usb/ftdi cable,and reboot your ESC's (pull li-po power replace li-po power)
you will hear your ESCs beep a few times (usually)

re-add the // to the code and reload the sketch. your ESCs are now calibrated properly. if you hadnt done this previously, you will now have a more stable quad.

[Karas]

Now this is active # define MINTHROTTLE 1150I have a 1150 increase or improve?Or choose / / # define MINTHROTTLE 1064 / / special ESC (simonka)How do you write?

[tovrin]

you would want to increase it it, but 1150 is pretty high already.
When you arm your motors, do they seem to be spinning pretty quickly? does your copter try to lift?

[Karas]

After activating the motor is not rotating. They should rotate?

[tovrin]

haha, yes, 1. for safety reasons, so you know its armed 2. for issues like i believe your motors should always be spinning when armed. though i could be wrong on 2.

[Noctaro]

Did you try to increase I?
It seems quite low.

Greetz Noc

[HSPalm]

Did you resolve this issue?

[HSPalm]

Did you resolve this issue?