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AssigneeZF Friedrichshafen AG
InventorsMichael Ebenhoch, Detlef Baasch, Ralf Dreibholz
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A transmission is described, in particular an automatic transmission for a vehicle, having at least one shift control element formed at least of a second shift control element half that can be brought into active frictional engagement with a first shift control element half. The shift control element halves can be connected to non-rotating and rotating transmission components, and a positive-locking coupling device is provided at least between the first shift control element half and the transmission components that can be connected thereto. The coupling device also comprises a synchromesh device. In addition, a method is described for controlling a transmission that has at least one shift control element and two shift control element halves which can be brought into active frictional engagement. When it is necessary to close the shift control element, the coupling device is synchronized by a synchromesh device, a positive-locking function of the coupling device is closed, and the halves of the shift control element are frictionally engaged.
Transmission, in particular an automatic transmission for a vehicle, with at least one shift control element (1) formed at least of one second shift control element half 3 that can be brought into active frictional engagement with a first shift control element half 2, and whose shift control element halves (2, 3) can be connected respectively with non-rotating transmission components (4) and/or rotating transmission components (5), such that at least between the first shift control element half (2) and the transmission components (5) that can be connected thereto a positive-locking coupling device (6) is provided, characterized in that the coupling device (6) is additionally constructed with a frictional element (7) to synchronize the coupling device (6).
Method for the control of a transmission having at least one shift control element (1) comprising at least two shift control element halves (2, 3) which can be brought into active frictional engagement, each being able to be connected to non-rotating transmission components (4) and/or rotating transmission components (5), such that at least between one of the shift control element halves (2) and the transmission components (5) that can be connected thereto a coupling device (6) is provided, and when it becomes necessary to close the shift control element (1):
Dependencies are inferred from the claim text.