192 clutches and power-stop control – Clutches – Operators
Reexamination Certificate
2005-10-26
2008-08-26
Bonck, Rodney H (Department: 3681)
192 clutches and power-stop control
Clutches
Operators
C192S1030FA, C701S067000
Reexamination Certificate
active
07416068
ABSTRACT:
Clutch control systems for a power take-off system of a vehicle, such as those employing all-wheel and four-wheel drive systems. The control system calculates the temperature of the clutch system, based on one or more vehicle operational parameters. If the clutch system reaches a pre-determined temperature limit, the control system selectively stops the operation of the clutch system until the clutch temperature drops below the pre-determined temperature limit. The control system includes an electronic control unit, e.g., a computer or microprocessor, that calculates and/or processes one or more vehicle operational parameters, including, but not limited to: (1) clutch input and output speeds; (2) slip across the clutch; (3) clutch torque; (4) current clutch power; (5) accumulated clutch power; (6) temperature delta (i.e., change) of the clutch; and (7) clutch temperature.
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Perttola Todd L.
Ray E. David
Bonck Rodney H
Borg-Warner Inc.
Warn Partners P.C.
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