Method for calibrating linear displacement measuring sensor of master cylinder for hydraulic operation of clutch system in motor car, involves generating switching point signal by sensor after reaching pressure threshold level

摘要

The method involves detecting an axial relative position between a piston (3) and a housing (4) by a sensor element (16). The piston is moved such that a supply borehole (7) is traversed and a cylinder chamber (2) is closed by a primary seal (9). A start point is set for starting calibration such that the piston is moved so long until a preset pressure threshold level is reached in the cylinder chamber. A switching point signal is generated by a linear displacement measuring sensor (14) after reaching the pressure threshold level.