Shifting element for an automatic transmission

A hydraulically actuatable shift element (100, 200, 300), comprising:

• a clutch piston (101);
• a fast fill piston (102);
• a valve device (103, 203, 303) comprising a sealing body (132, 232, 331) and a control body (131, 231, 351);
• a fast fill pressure chamber (126);
• and
• a clutch pressure chamber (117),
• wherein the sealing body (132, 232, 331) is configured such that, prior to actuation of the shift element (100, 200, 300), the sealing body (132, 232, 331) is in a first switching position of the sealing body (132, 232, 331), the fast fill pressure chamber (126) connected to a pressurized oil source (108) in the first switching position of the sealing body (132, 232, 331) such that the fast fill pressure chamber (126) is pressurizable by the pressurized oil source (108),
• wherein the sealing body (132, 232, 331) is configured such that, during or after actuation of the shift element (100, 200, 300), the sealing body (132, 232, 331) is in a second switching position of the sealing body (132, 232, 331), the sealing body (132, 232, 331) sealing off the fast fill pressure chamber (126) with respect to the rest of a hydraulic system in the second switching position of the sealing body (132, 232, 331),
• wherein the control body (131, 231, 351) is configured such that, before the actuation of the shift element (100, 200, 300), the control body (131, 231, 351) is in a first switching position of the control body (131, 231, 351), the control body (131, 231, 351) having a first pressure surface (A18, A38) upon which pressure from the pressurized oil source (108) is applicable in the first switching position of the control body (131, 231, 351),
• wherein the control body (131, 231, 351) is configured such that, before or after the actuation of the shift element (100, 200, 300), the control body (131, 231, 351) is in a second switching position of the control body (131, 231, 351),
• wherein the control body (131, 231, 351) has a second pressure surface (A19, A39), and the valve device (103, 203, 303) is configured such that, in the second switching position of the control body (131, 231, 351) or between the first switching position and the second switching position of the control body (131, 231, 351), pressure is applicable to the second pressure surface (A19, A39) and the first pressure surface (A18, A38).