> An engineer friend that works at ford told me (ie, grain of 
> salt, but who knows) that they have a model or two out (or 
> coming out? or merely concept testing?  I don't recall...) with CVT.
> 
> The computer that controls it revs the engine at 
> preconfigured "shift points"  to reduce the odd feeling all 
> their study participants felt while driving or merely riding 
> in it.  The constant acceleration force is a _very_ different 
> feeling from a normal ATX which has a ramping low 
> acceleration to high, then a sort of free-fall, then a jolt 
> back into the low to high acceleration.


Years & years ago, you could get bicycles with automatic gear changes
(derailleur type).  It worked on the tension of the the chain, high tension
means it shifted down, low tension shifted up.

I've no idea how it actually worked, but I guess 'not very well' as it has
vanished.

Tony

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