Interrelated power delivery controls – including engine control – Clutch control – Engine controlled by clutch control
Reexamination Certificate
2005-10-11
2005-10-11
Pang, Roger (Department: 3681)
Interrelated power delivery controls, including engine control
Clutch control
Engine controlled by clutch control
C477S906000
Reexamination Certificate
active
06953417
ABSTRACT:
A method of controlling the hydraulic actuation of the clutches and the synchronizers in a dual clutch transmission in the event of a clutch or synchronizer fault. The method includes the steps of determining which clutch is faulted when a clutch-on fault is detected, then commanding an interruption of engine torque to the faulted clutch and a neutralization of all synchronizers of the same axis shaft as the faulted clutch. The method further senses if a synchronizer actuator-on fault has occurred, then determines which synchronizer is faulted if an actuator-on fault has is detected. The method steps further include preventing the further actuation of the other synchronizers on the same axis shaft as the faulted actuator.
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Bliss McGlynn P.C.
Borg-Warner Inc.
Dziegielewski Greg
Pang Roger
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