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Unread 28-02-2012, 23:27
ablahblah ablahblah is offline
The Blaghh!
AKA: Alex
FRC #4404 (The Nuts 'N Colts)
Team Role: Programmer
 
Join Date: Feb 2011
Rookie Year: 2009
Location: USA
Posts: 27
ablahblah is an unknown quantity at this point
Question on Jaguar Coasting Specifics

I just thought of an interesting way we can spice up our drive system, but I'm not completely sure of how coasting works in Jaguars. Does the Jaguar allow the motor to rotate at a speed higher than the input voltage would cause at ALL times, or does the Jaguar still lock down rotational speed when power is applied? More specifically, if I'm giving a Jaguar an input of 0 (domain is -1.0 to 1.0), does the Jaguar allow the wheel to spin freely?

The reason why I'm concerned with this is because we're running an omnidrive this year. It works fine now without coasting, but I'm wondering if we have coasting on, can we run around the field without an adverse effect to our pushing resistance?

On another note, is there a way to engage coasting on the fly? As in, there's a three-pin connector that controls it, so is there any way to hook up a connector that by default jumps one pin to ground, but when it receives voltage (through a relay I guess) it jumps the other pin? I have a manual switch like that for my computer to reset CMOS when I'm trying some overclocks, heh, just don't know if there's something out there that can actuate via the sidecar or maybe the cRIO breakouts.

Last edited by ablahblah : 28-02-2012 at 23:47.