Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Reexamination Certificate
2007-03-20
2007-03-20
Pang, Roger (Department: 3681)
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
C477S181000, C477S109000, C477S098000
Reexamination Certificate
active
11016213
ABSTRACT:
The upshift control method of an automatic transmission for vehicles includes determining whether a start condition of a damper clutch control operation is satisfied during an upshift under a power-off. The method also includes executing the damper clutch control operation depending on predetermined control intervals and control duties in order to enhance a shift feel, the predetermined control intervals and control duties being set on the basis of a shift speed, a turbine RPM, and a transmission oil temperature, when the start condition of the damper clutch operation control is satisfied. The method further includes executing a fuel cut control after a damper clutch is engaged by the damper clutch control operation.
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Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
Pang Roger
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