Hi all!
I'm still working on a VI to controll a quad copter, and I got this wierd PID response while adjusting the gains for the pitch channel: the quad will get steady and after a second or two of staying steady it will start oscillating again.
any Ideas how to solve this problem?
snips of the relevant parts of the block diagram and control panel are attached, and a video of the quad's behaviour is available here
I'd also love to hear your ideas about the next step- position controll. As far as I can tell, in order to controll the quad's location (i.e on the x axis) I'll need to add another PID block which will get the quad's x distance from the desired spot as input, and will give a pitch angle as output. Then I'll need to connect this PID's output as setpoint for the PID I now use to controll the quad's pitch. is this the right approach for the problem? any suggestions?
Thanks a lot for your help!