Control device for continuously variable transmission
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United States of America Patent
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Apr 17, 2018
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N/A
app pub date -
Dec 10, 2014
filing date -
Dec 11, 2013
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Abstract
A control apparatus for a continuously variable transmission with a sub transmission includes a primary solenoid valve installed at an oil passage in a midway position between a mechanical oil pump and a primary pulley and configured to control a hydraulic pressure to be supplied to the primary pulley. The control apparatus further includes a transmission controller which outputs a primary current command value to a primary solenoid valve. The transmission controller outputs the primary current command value which previously closed the oil passage between the mechanical oil pump and the primary pulley to the primary solenoid valve before a rise in an engine revolution number due to at least a re-start of the engine, when a coast stop control/an idle stop control is carried out.
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