System and method for controlling endload force of a variator
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United States of America Patent
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Sep 2, 2014
Grant Date -
Jun 23, 2011
app pub date -
Dec 13, 2010
filing date -
Dec 16, 2009
priority date (Note) -
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Abstract
A system and method for controlling the endload force of a variator includes reducing a net force applied to a variator input disc of the variator. The variator includes an endload chamber, a subtraction chamber, and a valve fluidly coupled between the endload chamber and the subtraction chamber. Each of the endload chamber and the subtraction chamber applies an opposing force to the variator input disc. The valve is activateable to reduce the net force applied to the variator input disc. The valve may be activated based on the variator ratio, the position of the variator roller, and/or other parameters of the variator or operation thereof.
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