Patent ID: 8667885

Claim:
An actuating device ( 1 ) for a shift element (B) of a transmission mechanism, that is actuatable by a hydraulic first actuating pressure (p_B 1 ), with a valve device ( 2 ), such that the valve device ( 2 ) is acted upon in an area of at least a first active surface (A 18 ) of a first valve slide ( 8 A) and a first active surface (A 19 ) of a second valve slide ( 9 A) by a control pressure (p_EDS) in order to vary the first actuating pressure (p_B 1 ), a second active surface (A 38 ) of the first valve slide (A 8 ) is acted upon by a second hydraulic pressure (p_B 2 ) which is equivalent to the first actuating pressure (p_B 1 ), acts in opposition to the control pressure (p_EDS) and is adjustable by means of the second valve slide ( 9 A) as a function of the control pressure (p_EDS) applied, such that a variation of the control pressure (p_EDS) within a first pressure range of the control pressure (p_EDS) leads to a smaller variation of the first actuating pressure (p_B 1 ) than within a second pressure range of the control pressure (p_EDS) that follows on from the first pressure range of the control pressure (p_EDS).