Importance

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Abstract

The invention concerns a brake force generator for a hydraulic vehicle braking system with a force input element which can be or is coupled with a brake pedal and is displaceable in a base housing of the brake force generator, a master brake cylinder in which is guided displaceably a primary piston, wherein the primary piston with the master brake cylinder delimits a primary pressure chamber to generate a hydraulic braking pressure, a pedal counter-force simulation device that can be coupled with the force input element and an actuation force generating device to exert an actuation force on the primary piston.In this brake force generator it is provided that the pedal counter-force simulation device can be or is fluidically coupled with the force input element and that the actuation force generating device has a control valve and a chamber arrangement, wherein the chamber arrangement is formed with a vacuum chamber and a working chamber that is separated from the vacuum chamber by a moveable wall and can be connected fluidically thereto via the control valve, and where the control valve can be controlled mechanically via the pedal actuation to achieve a pressure difference between the working chamber and the vacuum chamber that determines the actuation force.

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First Claim