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Unread 10-11-2011, 17:13
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Ether Ether is offline
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Re: Brake vs. Coast in the Drive

Quote:
Originally Posted by Jared341 View Post
I did not realize that the speed controllers brake during every PWM cycle. I had assumed that they were only shorted when the signal was at/near the "neutral" pulse width.
Shorted but not necessarily braking. In fact, for a black jag at high PWM and low rpm the shorting actually allows the current to keep flowing and providing motive (not braking) torque during the brief PWM "off" portion of the cycle. There's a thread somewhere that goes into details and explains this.

link:
http://www.chiefdelphi.com/forums/at...2&d=1295820836



Last edited by Ether : 10-11-2011 at 17:56. Reason: added links
 


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