Gkn Automotive Gmbh

Eric Rene Esch

Rudolf Fitz

A clutch device has at least a multiplicity of clutch discs which are in frictional contact with one another, and a control unit which controls the clutch device. The clutch device is calibrated repeatedly during an operating time of the clutch device. A first calibration is performed at a first point in time. A second calibration is performed at a second point following the first calibration. The first point in time and the second point in time are within a first operating time of the clutch device and occur within a first time interval. At least a third calibration is performed in a subsequent second operating time at a third point in time. At least the second calibration is performed within a second interval of the third point in time. The first and second intervals are determined by the control unit based on a mileage of a vehicle or an energy input into the clutch device. The first interval is shorter than the second interval.

Operating a clutch device

The disclosure relates to a method for controlling an actuator or an actuator device, at least comprising a clutch and an actuator, which actuator has: an electric drive motor and a control device; a ramp mechanism, which comprises a rotatable first disk, which has first ramps, a second disk, which can be moved only in an axial direction and which has second ramps, and balls, which are arranged between the disks in the first ramps and second ramps; and at least one spring for moving the second disk in the axial direction. The dynamics of the electric drive motor are reduced by the control device at least in dependence on at least the determined preloading force or the first play in such a way that, during braking, the pin contacts only one side surface or that, in the event of a reversal of the rotational motion, the pin bridges the first play at a reduced first rotational speed of the drive motor and comes into contact with the other side surface and only then does an increase to a second rotational speed occur.

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Euskirchen, Germany

Eric Rene Esch