Patent ID: 6905433

Claim:
A device for controlling a hydraulically actuatable shifting element ( 2 ) of a motor vehicle transmission, the device comprising: a clutch piston ( 3 ) which defines with a first surface (A_ 1 ) a hydraulically pressurizable clutch space ( 4 ) and defines with a second surface (A_ 2 ) of a different size a hydraulically pressurizable reset space ( 5 ); a slide valve system which has a first clutch valve ( 8 ) associated with the clutch space ( 4 ), a second clutch valve ( 9 ) associated with the reset space ( 5 ) and a holding valve ( 11 ) associated with the reset space ( 5 ); the first clutch valve ( 8 ), second clutch valve ( 9 ) and holding valve are movable according to a control pressure (p_EDS) adjusted by a pressure adjuster ( 12 ); a pressure change between a pressurization of the clutch piston ( 3 ) on the clutch space ( 4 ) side and on the reset space ( 5 ) side being carried out as a control function so that the clutch piston ( 3 ), on the second surface (A_ 2 ) facing the reset space ( 5 ), is pressurized in an unshifted state of the shifting element ( 2 ) and, is emptied in a shifted state of the shifting element ( 2 ); and wherein both first and second surfaces (A_ 1 , A_ 2 ) of the clutch piston ( 3 ), when the shifting element is engaged, are correspondingly pressurized up to a pre-defined pressure-adjuster control pressure (p_EDS_ 2 ) with at least approximately the same pressure.