Method and system for controlling a transfer case clutch to...

Details Method and system for controlling a transfer case clutch to... Method and system for controlling a transfer case clutch to...

2004-02-09

2009-12-08

Keith, Jack W. (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Clutch control

C477S035000, C477S174000

Reexamination Certificate

active

07630812

ABSTRACT:
In a motor vehicle driveline including a transfer case whose output is continually connected to a first output, a clutch, operating partially engaged, responds to a control signal to change the degree of clutch engagement, whereby a second output is connected driveably to the first output. A digital computer continually calculates a change in clutch temperature at frequent intervals and updates a running sum of clutch temperature changes. The control causes the clutch to more fully engage if the current calculated clutch temperature exceeds a predetermined reference clutch temperature.

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