Method for operating a clutch of a hybrid powertrain and powertrain

Abstract

The invention relates to a method for actuating a clutch (1) of a hybrid drive train (2) by means of an actuating device (3), wherein the actuating device (3) has an electric actuator unit which is operated by sliding The element acts in an actuating manner on the actuating bearing, which in turn is kinematically or movably coupled to the actuating element of the clutch (1), wherein the preload point (6) is defined such that initially the sliding element is placed on the sliding path above to create the actual characteristic curve (7), which is then compared with the theoretical characteristic curve (8) saved for the sliding path, and specified at the following point along the actual characteristic curve (900 ) preload point (6) with no or minimal deviation from the comparison point of the theoretical characteristic curve (8), at which preload point the actuating bearing is pressed against the adjusting element with minimum sliding force Above, the actual characteristic curve characterizes the characteristic value of the physical movement of the sliding element, the preload point ( 6 ) being theoretically located in the sliding path. The invention also relates to a hybrid drive train (2) for a motor vehicle.

Description

technical field [0001] The invention relates to a method for actuating a clutch, preferably a friction clutch, of a hybrid drive train by means of an actuating device, wherein the actuating device has an electric actuator unit which acts in an adjusted manner on the actuation by means of a sliding element The actuating bearing is in turn kinematically or movably coupled to an adjusting element of the clutch, such as a lever spring, in particular a disk spring. Furthermore, the invention relates to a hybrid drive train for a motor vehicle, such as a passenger car, a truck, a bus or other commercial vehicles. Background technique [0002] A prior art of this type is known from DE 10 2013 205 109 A1. A method for operating an actuating device for a clutch is disclosed therein. The clutch has a stator arrangement, a rotor arrangement rotatable relative to the stator arrangement, and a slider arrangement axially displaceable to a limited extent with respect to the rotor arrange...

AI Technical Summary

Problems solved by technology

[0006] However, this known formation of the intersection point has the disadvantage that under strongly changing frame conditions, such as when the clutch is severely worn or when the temperature rises significantly, the intersection point no longer occurs at the actual preload point

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