Control system and method for transmission solenoids
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United States of America Patent
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Apr 23, 2013
Grant Date -
Jun 30, 2011
app pub date -
Feb 11, 2010
filing date -
Dec 29, 2009
priority date (Note) -
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Abstract
A current control output (CCO) system for transmission solenoids includes a current determination module, a current compensation module, and a current control module. The current determination module determines a desired current for the solenoids based on a desired pressure. The current compensation module generates a compensated current by adjusting the desired current based on a system pressure and a temperature of oil in the transmission. The current control module performs current-based control of and applies hysteresis to the solenoids based on the compensated current.
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