Double clutch drive with position maintaining function

Details Double clutch drive with position maintaining function Double clutch drive with position maintaining function

2007-01-16

2007-01-16

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C192S11400R, C477S906000

Reexamination Certificate

active

10920212

ABSTRACT:
A double clutch drive has a first and a second clutch, wherein for normal operation for the closing and opening of the first clutch a first hydraulic device governed by an electronic control is provided, and for the closing and opening of the second clutch a second hydraulic device is provided. Also, a position-holding hydraulic device is provided to which position signals are delivered corresponding to the momentary position of the first and second clutch, and which is connected via hydraulic control lines with the first and second hydraulic device, while in the event of a failure of the electronic control the position-holding hydraulic device hydraulically operates the first and the second hydraulic control such that, at least in many positions of the clutches, the clutch positions that are present immediately prior to the failure of the electronic control are sustained.

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patent: WO 03/074895 (2003-09-01), None
patent: WO 2003/074895 (2003-09-01), None

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