Quote:
Originally posted by ahecht
Actually, 190 had a toroidal CVT in 2002, and was planning to use it again in 2003, but it had to be left out due to weight and time considerations. Also, I heard that 222 had a CVT designed and built this past year, but their robot design didn't need it. The hard part with a CVT is not the actual design and build, it's the programming. There is a fine balance between not reacting fast enough and occilating wildly that is very hard to overcome.
There is a good description of toroidal CVTs at http://www.barloworld-cvt.com/varibo...based_cvt.html
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Interesting... didn't know a true CVT had been built before. I thought about a toroidial CVT, but then you have the problem that you brought up (control of gear ratios). Also, you have the issue of torque transfer between two non-interlocking metal surfaces. How did you guys solve this problem? I suppose you could use a high COF material and use acid-etching to make the metal surface porous. Or am I making this problem larger than it is?