PID control: Unterschied zwischen den Versionen

Aus www.wiki.ardumower.de
Wechseln zu: Navigation, Suche
(PID controller)
(PID controller)
Zeile 17: Zeile 17:
 
Examples
 
Examples
  
[Pid_controller_examples.png]
+
[[Pid_controller_examples.png]]
  
 
=Velocity PID=
 
=Velocity PID=

Version vom 27. Mai 2015, 00:18 Uhr

Abstract

Ardumower uses a digital PID controller for

  • heading/course tracking
  • perimeter tracking
  • motor speed control
  • ...

PID controller

Proportional, Integral and Derivative (PID) controller concept:

P : control gain (too high value produces oscillation, too low value too slow control)
D : to reduce over-shooting
I : reduce small error left by P-only

Examples

Pid_controller_examples.png

Velocity PID

The standard form is most used for position control. If you derivate the standard form, you obtain the velocity form: