Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Reexamination Certificate
2006-06-08
2010-12-21
Tran, Khoi (Department: 3664)
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
C477S174000, C477S168000, C477S169000, C477S172000, C701S090000
Reexamination Certificate
active
07854683
ABSTRACT:
A system for controlling a torque converter clutch in a vehicle powertrain includes a controller having an input for receiving powertrain operating parameter information. The controller is configured to determine a torque converter speed ratio based on the powertrain operating parameter information and to compare the speed ratio to a specified speed ratio limit. The controller is further configured to determine a target torque converter slip when the speed ratio exceeds or meets or exceeds the specified speed ratio limit; to compare the target slip with a desired slip value based on an vehicle noise, vibration or harshness (NVH) limit; and to control torque transmission of the torque converter clutch based on comparison of the target slip and the desired slip value. A method for controlling a torque converter clutch is also provided.
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Binienda Gary
Dada Javed A.
DeGeorge John W.
Hartman Peter
Lowe Gary K.
Chrysler Group LLC
Kim Kyung J
Smith Ralph E.
Tran Khoi
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