Brake slip controlled brake for automotive vehicles

A brake-slip-controlled brake system for an automotive vehicle including a master cylinder acted upon by a pedal force of the vehicle brake and said master cylinder being connected to a plurality of wheel brake cylinders respectively by way of a plurality of brake circuits, said system comprising, in combination:

• a plurality of sensors respectively coupled to said vehicle for providing electrical signals indicative of vehicle braking behavior;
• means coupled to said sensors for providing an output signal indicative of said braking behavior;
• an axially displaceable rotating cam being rotatable about a given axis and longitudinally displaceable from a normal position of rest to a plurality of positions along said axis in response to said output signal, said cam being longitudinally tapered along said axis and having an eccentric cross section which varies in shape along said axis;
• said cam including one axially extending portion throughout the entire length of said cam and which has a constant predetermined radial distance from said axis to thereby provide a high lobe substantially parallel to said axis;
• means responsive to said output signal for translating said cam along said axis;
• and
• at least two braking pressure modulators each being respectively coupled to one of said brake circuits between said master cylinder and one of said brake cylinders, each of said modulators comprising a cylinder having a movable piston slidably mounted therein and each of said pistons having a tappet extending outwardly away from its cylinder for engaging said cam, and valve opening means extending in the opposite direction from said piston.