System and method for generating line pressure of continuously variable transmission in hybrid vehicle
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United States of America Patent
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Jul 7, 2009
Issued Date -
N/A
app pub date -
Sep 7, 2006
filing date -
Jun 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A system and a method for generating a line pressure of a continuously variable transmission (CVT) in a hybrid vehicle in which the line pressure of the CVT is maintained to be constant even in an idle stop state of an engine. Steps may include detecting operation of a brake; determining whether an idle stop condition is satisfied; detecting a hydraulic pressure of a control valve for controlling the line pressure of the continuously variable transmission when the idle stop condition is satisfied; comparing the hydraulic pressure of the control valve with a predetermined value; generating a pressure difference in the chamber when the hydraulic pressure of the control valve is smaller than or equal to the predetermined value; and actuating a cylinder for generating the line pressure according to the pressure difference in the chamber.
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