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Unread 06-08-2013, 10:07
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Re: pic: 3CIM Ball Shifter

I agree that top speed is useful for comparison and benchmarking. OP also said it was his first gearbox design, so my experience comments are justified. We don't design around top speed, but we talk about it a lot when we compare gear ratios quickly. But for analysis, we switch back to our accel times, accel curves, and stuff.


The question really is if one of your functional objectives is traction limited push current.

We no longer use that as our metric for low gear. We design low gear to meet a lot of the short game dynamics objectives, and we're getting better at quantifying current. We spend a lot of time in high gear high current scenarios, so any way we can reduce those (high gear launches and zero-point turns especially) by improving low gear performance (and actually using it for short game driving) is a huge improvement to us in overall electrical draw.
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