View Single Post
  #5   Spotlight this post!  
Unread 06-02-2014, 21:47
Qwuke Qwuke is offline
Registered User
FRC #0247
 
Join Date: Feb 2014
Location: Berkley, Michigan
Posts: 4
Qwuke is an unknown quantity at this point
Re: PID Gain Scheduling/Deadband Filtering For a Non-Linear Output

Quote:
Originally Posted by Jared341 View Post
I am happy to help...But you didn't answer my questions

It seems like you are trying to use PID control of speed during teleop while simultaneously using a non-linear joystick curve.
Whoops! "What is the problem you are trying to solve?" I'm trying to solve the fact that PID does not appreciate that I am going to feed a curved joystick input according to literature I have found


"Are you talking about autonomous mode or teleop?" This is in teleop

"Why do you think it should be smoother?" I think it should be smooth because our drivers have difficulty aiming with a linear joystick input. Again, jumpiness.

"I understand why a non-linear joystick curve can help with a jumpy robot, but I do not understand why you want to do PID speed control." This year our robot is using a mecanum drive train. Right now I observe that our robot's wheels don't spin at the same speed depending on how even the terrain is, and this is a problem when we are rotating/strafing. I want to implement speed control in order to keep our wheels at the outputs we are feeding them instead of having a messed up strafe/rotation function.

Thanks, and I apologize for any miscommunication.
Reply With Quote