Actuation system with a flow sensor in the hydraulic line for determining the pedal travel and method for determining the pedal travel / the pedal position

摘要

The invention relates to a hydraulic actuation system for actuating a clutch of a motor vehicle drive train, having a hydraulic device (2) prepared for hydraulically connecting a transmitter unit to a slave unit, a movable actuator for controlling a hydraulic pressure within the hydraulic device (2), and a measuring device (1 ), which has an adjustable actuator (4) and a, the position of this actuator (4) detecting sensor (5), wherein the actuating element so at least indirectly on the actuator (4) acts, that an adjustment of the actuating element, an adjustment of the actuator ( 4), wherein the measuring device (1) is designed as a volume flow measuring device (1), which is prepared for measuring a volume flow of a flow of hydraulic fluid flowing through the volume flow measuring device (1) in an operating state; and a method for determining the position of an actuator of a clutch actuation system by means of a volumetric flow meter (1).