Shift sequencing systems for a dual clutch transmission
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United States of America Patent
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Apr 30, 2013
Grant Date -
Oct 27, 2011
app pub date -
Apr 26, 2010
filing date -
Apr 26, 2010
priority date (Note) -
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Abstract
A dual-clutch transmission (DCT) shift sequencing system includes a shift type module that determines a shift type based on a scheduled gear and a current attained gear of a DCT. A shift sequence module determines a sequence index based on the shift type. A sequencing module generates a fork command signal and a clutch command signal based on a first sequencing table corresponding to the sequence index. A shift abort module may be included to terminate an ongoing shift and to transition to an updated shift. A fork control module controls fork shifting in the DCT based on the fork command signal. A clutch control module controls clutch engagement in the DCT based on the clutch command signal.
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