Go to Post In FIRST you have the right to remain silent, anything you say can and will be held against you and your associates in the court of public opinion. - Koko Ed [more]
Home
Go Back   Chief Delphi > Technical > Electrical > CAN
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Spotlight this post!  
Unread 20-03-2011, 21:58
kamocat's Avatar
kamocat kamocat is offline
Test Engineer
AKA: Marshal Horn
FRC #3213 (Thunder Tech)
Team Role: Mentor
 
Join Date: May 2008
Rookie Year: 2008
Location: Tacoma
Posts: 894
kamocat is just really nicekamocat is just really nicekamocat is just really nicekamocat is just really nicekamocat is just really nice
Send a message via AIM to kamocat Send a message via MSN to kamocat
ramping in speed/position mode

This is more of a request than a question.

Often on an arm (controlled in position mode), sudden acceleration and deceleration (jerk) can be dangerous. If I were using voltage mode, my solution would be to set the ramp rate. However, in position mode that feature is not available. I've tried approximating the effect using the Integral term, but this simply creates oscillation if used without significant Proportional. (When using significant proportional, large changes in position cause large jerk.

In Speed mode there is a similar issue. Here it is not as urgent; I can put a ramping feature in my software, or tune using integral-only. However, a ramping feature would still be appreciated.
__________________
-- Marshal Horn
Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 02:54.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi