Constantly Changing Gear Ratio

  • Thread starter BasketDaN
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I have heard that this concept is already starting to be implimented in cars (constantly changing gear ratios), is this true?
 

wolram

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it was done years ago by DAF, useing two pullies that expand or contract joined by a belt.
 

wolram

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it was also tried in F1 but was banned
 
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For googling purposes.... this is commonly called a "Continuously Variable Transmission" or "CVT".
 

russ_watters

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I believe that there are several production cars that use it. The gas/electric hybrids I think.
 
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What became of it/ why is it not more popular?
 
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Ahh I see, thanks. Does anybody know if this is the only way CVTs are currently made?
 

LURCH

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Originally posted by BasketDaN
Ahh I see, thanks. Does anybody know if this is the only way CVTs are currently made?
AFAIK, belt-driven CVT's are the only type being put in automobiles. However, I do recall seeing a bicycle that appearently used a CVT which employed centrifugal force on weights attached to the hub of the tires.
 

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