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Unread 01-08-2005, 01:14
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NoodleKnight NoodleKnight is offline
24 Hours of LeMons?
FRC #0100 (WHS&CHS Robotics)
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Re: CVT, which teams are planning on using them for next year?

Quote:
Originally Posted by santosh
You are correct about CVT needing less driver interaction, but it does also have a bunch of pros on its own. It servs a better than automatic transmissions becasue otherwise why would they put thm ther if there was already no driver interaction.Somewhere someone told me that ther was 25% better acceleration and you can build up pushing power faster. I do believe that a a program guiding the positioning of the belts would be easier to drive, but a manually controlled CVT would let you reap most of the benefits out of it. It is just like the choice, manual cars vs. automatic cars.
I get what you're saying, but the information you speak of, the 25% better acceleration -- doesn't that information come from the automotive industry?
Internal combustion engines have a torque/HP curve, and the CVT chooses to vary its reduction ratios within that curve to get the best efficiency, where as with gears the driver has to go in and out of that curve (or the peak of the curve) while accelerating.
Electric motors have a linear torque line, where their peak torque is at stall.
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WHS/CHS Robotics - Team 100 (2003-2006):
2006- Delphi's Driving Tommorow's Technology @ Davis | Imagery Award @ SVR | 2004- SVR Finalists (w/ 691 and 1280)| 2003- Delphi's Driving Tommorow's Technology @ Sac