Actuation system and clutch device for a motor vehicle

Abstract

The invention relates to an actuation system (20) for actuating a clutch (10), in particular a separating clutch of a motor vehicle, comprising a substantially annular piston / cylinder unit (30), the piston (31) of which can be moved along a working direction (34) in a substantially translational manner in an axial direction in order to actuate the clutch (10), and comprising an annular actuation bearing (40) which allows a relative rotational movement between the piston / cylinder unit (30) and the clutch (10) to be actuated. The actuation system further comprises a spring device (70) for providing a force (71) which acts in a substantially axial direction opposite the working direction (34) of the piston / cylinder unit (30), wherein the spring device (70) is supported against the non-rotating side (41) of the actuation system (20). By means of the aforementioned invention, an actuation system and a clutch device equipped with said actuation system are thus provided which combine a smallradial installation space with a long service life.

Description

technical field [0001] The invention relates to an actuation system for a clutch device, for example a clutch device for a hybrid module, which is provided for a motor vehicle, such as a passenger car, a van or another commercial vehicle, and is coupled to an internal combustion engine. The invention also relates to the clutch device itself, which has the actuation system. Background technique [0002] A hybrid module generally comprises: a coupling device for mechanically coupling the internal combustion engine; a disconnect clutch with which torque can be transmitted from the internal combustion engine to the hybrid module and with which the hybrid module can be decoupled from the internal combustion engine; an electric motor with for generating drive torque using the rotor; and a dual clutch arrangement by which torque can be transmitted from the electric machine and / or from the disconnect clutch to the drive train. The dual clutch device includes a first sub-clutch and ...

AI Technical Summary

Problems solved by technology

A disadvantage of these known embodiments is that these spring devices require additional radial installation space and since the spring device is arranged in or on the rotational region of the clutch to be actuated, it is likewise capable of a rotational movement, due to Therefore they contribute an undesired fraction of the moment of inertia of the overall clutch arrangement or increase wear

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