Abstract: A method for determining a vehicle reference speed (VREF) in a brake system of amotorized single-track vehicle (201), of a type having an anti-lock control system (203). The slip control (204) can be carried out at one wheel (VR) of the motor vehicle depending on the vehicle reference speed (VREF). A sensor (202) for measuring the wheel speed (v) is arranged on this slip-controllable wheel (VR) and comprises the steps of forming a first wheel speed signal (vfilt—gradlim) by low-pass filtering of the measured wheel speed (v). Wherein the negative gradient of the first wheel speed signal (vfilt—gradlim) is limited to a predetermined gradient limit value (?vmax—n/T), and that the first wheel speed signal (vfilt—gradlim) is used as a wheel-specific vehicle reference speed (VREF, 3, 42, 62, 102, 110, 122, 123, 142) for slip control of the wheel (VR).

Abstract: The invention relates to a pre-fabricated wall piece (1) for the construction of buildings, comprising an inner wall (4) and an outer wall (3) made from concrete, connected to each other by means of reinforcements (2) and with a cavity (5) between both walls (3, 4) for subsequent filling with concrete. The inner side (6) of the outside wall (3) facing the inner wall (4) further comprises a thermal insulation layer (8) for reduction of the heat transfer between the walls (3, 4). The pre-fabricated wall piece is characterized in that the reinforcement (2) connecting the outer wall (3) and the inner wall (4) comprises U-shaped connector pins made from steel, retained by the web thereof in the outer wall (3), and a lattice-beam reinforcement (9) that projects into the cavity (5) from the inner side (7) of the inner wall (4) facing the outer wall (3).