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Unread 01-12-2013, 20:41
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Re: Vex Pro Ball Shifter Questions

Quote:
Originally Posted by MichaelBick View Post
If everything was perfect you could use accelerometers to calculate velocity.
I'm struggling to see how this is possible. You'd have to know your initial velocity for this to work, which sort of defeats the whole purpose.



We did an acceleration/velocity test with our robot (ballshifters) earlier this year. In high gear, from a standstill, the robot catches up (position-wise) to itself in low gear within four feet. If you shift, you'll also lose energy during it. Automatic shifters are not worth it.