Method for operating a continuously variable conical pulley transmission
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United States of America Patent
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Issued Date -
Nov 12, 2009
app pub date -
Apr 29, 2009
filing date -
Apr 30, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for operating a continuously variable conical pulley transmission having two conical pulley sets that are operatively coupled by a endless torque-transmitting means, so that the transmission ratio between the conical pulley sets is continuously variable. A hydraulic medium is supplied to the continuously variable conical pulley transmission in a stop phase of a start/stop operation by means of a pump unit that includes a pump that is driven by an electric motor. The electric motor is controlled as a function of the temperature of the hydraulic medium.
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