Braking device for a hydraulic motor vehicle braking system comprising a stop disc

Abstract

In order to provide an improved braking device (1) without a vacuum booster, in which braking device the zero point of the cylinder piston (3) remains as durably as possible within defined close tolerances and simultaneously the impact noise is reliably reduced, according to the invention the stop disc (5) can be elastically reversibly compressed in the axial direction over a defined compression path (S) and comprises means for delimiting the compression path (S), said delimitation being defined in a path-controlled manner.

Description

technical field [0001] The invention relates to a braking system for a hydraulic motor vehicle braking system according to the preamble of claim 1 . Background technique [0002] Due to the increasing automation of vehicle control, including brake control, but also the desire to save space, electrohydraulic, electromechanical and booster-like externally actuatable brake systems of significantly smaller construction are being developed. become more and more common. [0003] For reliable control, calibration and travel detection of the driver's request, the externally controllable brake system needs to know the cylinder piston that builds up the brake pressure in its unactuated starting position - known as the zero point or reference Point - the exact relative position at. In order to avoid the expense of complex sensing and spatial calibration, it is known to provide the cylinder piston with a fixed-position mechanical stop which defines the above-mentioned zero point and s...

AI Technical Summary

Problems solved by technology

However, it is generally considered that the cushioning effect of such discs is too low and needs to be improved

In addition, such a disk deforms over time, so the zero point shifts over time and leads to complicated calibration measures