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Unread 03-10-2011, 23:09
Adam.garcia Adam.garcia is offline
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Re: Current Draw vs. Stall current

Quote:
Originally Posted by the man View Post
Now ask your self how long will a 17 amp hour battery last while four motors draw 110 ish amps? How long untill your wire melts? I feel there is some thing wrong with your calculations.
The 121 Amps only occur when at max continuous load (ie. We are pushing against a wall, or an immovable robot). There is no feasible reason for pushing against an immovable object for more than a few seconds.

To get around ever having to go near this 121 Amps, our programmer is working on some code which will sense if the Amps rise too high while in high gear. If the robot senses high Amps, it will automatically shift to low gear in order to prevent possible breaking.

We just saw this a few days ago while looking at 399's drive code. Ingenuity to the max!