Control device for continuously variable transmission
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United States of America Patent
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Jan 9, 2018
Grant Date -
Aug 4, 2016
app pub date -
Oct 17, 2014
filing date -
Oct 23, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A control apparatus for a continuously variable transmission (1) that includes a belt-type continuously variable transmission mechanism (40) and friction engagement elements (32), (33) is disclosed. The control apparatus includes: an operation position detection section (65) configured to detect an operation position of a selection lever (50); a selection control section (60b) configured to execute a selection control for engaging the friction engagement elements (32), (33) from a time point at which a switching from a non-travel range to a travel range is detected; a determination section (60) configured to determine engagement states of the friction engagement elements (32, 33); and a pulley pressure control section (60c) configured to control a pulley pressure supplied to two pulleys (41), (42). A belt slippage during an engagement of clutches is suppressed while a load on an oil pump is reduced.
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