192 clutches and power-stop control – Transmission control and clutch control – Common control
Reexamination Certificate
2008-07-08
2008-07-08
Bonck, Rodney H (Department: 3681)
192 clutches and power-stop control
Transmission control and clutch control
Common control
C192S113350
Reexamination Certificate
active
11216318
ABSTRACT:
The invention relates to a hydraulic system (1) for providing pressures and volumetric flows in a dual clutch transmission, in particular for providing a first volumetric flow for cooling and lubricating a first clutch (2) and for providing a second volumetric flow for cooling and lubricating a second clutch (3). The hydraulic system is distinguished by the fact that at least one switching valve (4), which in a first position guides a lubricating flow onto the first clutch (2) and a cooling flow onto the second clutch (3) and in a second position guides the lubricating flow onto the second clutch (3) and the cooling flow onto the first clutch (2), is connected upstream of the first clutch (2) and the second clutch (3). The cooling flow is preferably variable.
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Eggert Ulrich
Hegerath Andreas
Leibbrandt Martin
Möhlmann Reinhard
Bonck Rodney H
Getrag Ford Transmissions GmbH
Schlee Alexander R.
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