Thread: Difference in forward/reverse drill motor speed
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Unread 24-06-2002, 00:20
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#0047 (ChiefDelphi)
  
Join Date: May 2001
Location: Pontiac, MI
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Re: Might be sleeping...
Posted by Mike Gray at 2/8/2001 8:02 AM EST


Engineer on team HOT from Huron Valley Schools sponsored by GM Milford Proving Ground.


In Reply to: Beating a dead horse...
Posted by Joe Johnson on 2/7/2001 9:59 PM EST:



I know its hard to believe, and I can't explain why they do it, but turning them the same direction dramatically improves performance, especially when launching from a dead stop.

I would love to see some data from a real lab! Think you can do this? We got some EMI data on these motors also. Both radiated and conducted emissions are very high, but that is expected.

The drill motors are the only motors exibiting this odd behavior. The Delphi motors are especially quiet, both audibly and electrically. They rotate symetrically too!


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