This sounds very similar:
http://www.chiefdelphi.com/forums/sh...ad.php?t=98128
There were multiple issues found that could have led to brownouts on that robot. However, the main one on that robot seems to be a non-issue on yours.
From that thread:
Quote:
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Originally Posted by Phalanx
I was working with / trying to help these guys yesterday at Brunswick Eruption. There were numerous problems being identified and we were trouble shooting them one at a time. This is as far as were able to get.
1) The ground wasn't firmly attached to the stud on the PD. Fixed
2) One Gear Box was loose and wobbling. Fixed
3) We measured the power drop between the studs on the PD with a multi-meter when they changed directions it went from 12volts to 8volts and lower.
We recommended fully charged batteries.
4) I didn't check if the CRIO rebooted, but the DLINK rebooted every time.
5) They also have the D-Link powered by a 20AMP circuit like James posted previously.
6) Lastly, I'm wondering if direct driving Mechanum Wheels using 4 - CIMPLE Boxes wasn't enough of a mechanical reduction and hence cause too much draw.
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On another note, do radio brownouts actually occur at 8.7 V? I thought it was 6V or lower; I remember our motors getting dangerously close to 6 V last year with no brownouts, but it's been sometime.