Electromechanical brake pressure generator including an anti-twist protection

A method for manufacturing an electromechanical brake pressure generator, the electromechanical brake pressure generator including:

• at least one threaded drive system configured to convert a drive-side rotary motion into a translatory motion, and
• a piston/cylinder unit including a hydraulic piston, actuatable by the threaded drive system for brake pressure generation, the threaded drive system including a spindle and a spindle nut, which cooperate via a thread, and an electromotive drive using which the spindle and the spindle nut are rotatable relative to one another, wherein the hydraulic piston is accommodated in a hydraulic cylinder of the piston/cylinder unit which forms an anti-twist protection, the anti-twist protection being formed by a recess which extends in an axial direction and forms a sliding surface, and by a sliding element protruding into the recess, so that the hydraulic piston is secured against twisting and is axially displaceable by a rotation of the spindle;
• the method comprising the following steps:
• forming recesses which extend in an axial direction and include sliding surfaces, the recesses together with the sliding element forming an anti-twist protection;
• and
• forming a microprofiling at the contact surface of the sliding element and/or the sliding surface of the recesses.

A vehicle, comprising:

• an electromechanical brake pressure generator for a hydraulic braking system, the electromechanical brake pressure generator including:
• at least one threaded drive system configured to convert a drive-side rotary motion into a translatory motion;
• and
• a piston/cylinder unit including a hydraulic piston, actuatable by the threaded drive system for brake pressure generation, the threaded drive system including a spindle and a spindle nut, which cooperate via a thread, and an electromotive drive using which the spindle and the spindle nut are rotatable relative to one another, wherein the hydraulic piston is accommodated in a hydraulic cylinder of the piston/cylinder unit which forms an anti-twist protection, the anti-twist protection being formed by a recess which extends in an axial direction and forms a sliding surface, and by a sliding element protruding into the recess, so that the hydraulic piston is secured against twisting and is axially displaceable by a rotation of the spindle;
• wherein the sliding surface and/or a contact surface of the sliding element cooperating with the sliding surface includes a microprofiling, whose profiling direction is orthogonal to a movement of the hydraulic piston.