Slip-controlled brake system

Claim 1

A slip-controlled brake system for an automotive vehicle having vehicle wheels, said system comprising, in combination: a braking pressure modulator operated as a function of wheel deceleration and having an inert mass which is coupled to a shaft connected to a slip-controlled wheel of the vehicle, said mass rotating with said shaft of said slip-controlled wheel and being axially displaceable against a resetting force upon a deceleration of said slip-controlled wheel, and said mass actuating a valve member after a wheel deceleration threshold has been exceeded, thereby bringing about a modulation of the pressure in the brake of the slip-controlled wheel wherein the resetting force opposite to the axial displacement of said mass (10) is variable as a function of the braking pressure in the wheel brake (4) of the slip-controlled vehicle wheel (7, 8); and wherein a return spring (17) is provided in a cylindrical bore which surrounds said shaft between said slip-controlled wheel and said mass, wherein the end of said cylindrical bore which faces said slip-controlled wheel terminates into a pressure chamber which communicates with and is acted upon by the braking pressure in the wheel brake (4), and wherein a resetting piston (18) is provided in said cylindrical bore between said chamber and said return spring for the generation of the resetting force.