Can a PID motor control be implemented in CREO mechanism?

Forum|Forum|7 years ago
September 7, 2018
2 replies
6399 views

Is it possible to implement a PID (Proportional - Integral - Derivative) speed or position control on a motor in CREO mechanism? Here is an example of a basic (non PID) speed control I have used with a torque motor. What if there is a specific algorithm used by the control circuit such as PID? Are there some example of how this might be implemented? Is Custom Loads a possible or preferred way to do this?

Torque Motor Speed Control Method

Mechanism Design

Best answer by ChrisKaswer

Yes, you can! There was an old example model that PTC posted many years ago when the tool was "Mechanica Applied Motion". I have used this same model to have it run properly in Creo 5...at least it appears to run properly, as I haven't checked the details of all results to know it's accurate. I have attached a PDF of the original paper posted many years ago and my comments on how this should be modified to get the desired result in Creo (even those are old now!). The model is also attached (Creo 2 version).

Enjoy,

Chris

S

SweetPeasHub

17-Peridot

Sorry, this is me. I used the wrong login.

C

ChrisKaswer

Answer

16-Pearl

Yes, you can! There was an old example model that PTC posted many years ago when the tool was "Mechanica Applied Motion". I have used this same model to have it run properly in Creo 5...at least it appears to run properly, as I haven't checked the details of all results to know it's accurate. I have attached a PDF of the original paper posted many years ago and my comments on how this should be modified to get the desired result in Creo (even those are old now!). The model is also attached (Creo 2 version).

Enjoy,

Chris

1_Modeling-Control-Systems-in-Motion-Mechanisms.zip

G

gfraulini

17-Peridot

Hi,
I wonder how one can limit the torque of the motor (in plus and minus).
I worked on your model and I saw that If I add only 1 torque motor, instead of 3, who is commanded by a user defined measure (that is the sum of the measur of the 3 troque motors) I have the same behavior as before.

But if I try to limit this new motor (-600<=total torque<=+600) the system doesn't respond well.

What am I doing wrong?