Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Extra Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=68)
-   -   pic: #NotSwerve (http://www.chiefdelphi.com/forums/showthread.php?t=130132)

Arpan 27-07-2014 10:40

Re: pic: #NotSwerve
 
Quote:

Originally Posted by Andrew Lawrence (Post 1394356)
Teams that gear for that speed use it in cases where you would want to cross the entire field extremely quickly in one straight shot (think 2011 or 2013). That being said, it's still something interesting to test. Most robots that run these speeds are on the lighter side (90-100 lbs), which helps them abuse the higher speeds with greater acceleration.

They do. However, in my experience, the risk of blowing the main breaker here is not worth it. It also necessitates a drive system such as split arcade for decent control.

We're considering going to ~16 calculated high and ~7-9 calculated low next year to avoid blowing the breaker.

asid61 02-08-2014 04:53

Re: pic: #NotSwerve
 
Quote:

Originally Posted by Arpan (Post 1394489)
They do. However, in my experience, the risk of blowing the main breaker here is not worth it. It also necessitates a drive system such as split arcade for decent control.

We're considering going to ~16 calculated high and ~7-9 calculated low next year to avoid blowing the breaker.

Main breaker blows can be easily avoided by implementing a "crash detection" current-sense code. Use a current sensor to check if it is a spike. If the current spikes for too long, you shift to low gear or put the CIMs in brake mode.
If you are using a shifter, I think going 18-20 fps is not all bad, as long as your driver can control it.


All times are GMT -5. The time now is 22:15.

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