Abstract: A method is provided for operating an actuator of a steer-by-wire steering system of a motor vehicle in a speed range from standstill to parking and/or maneuvering. In one example, the method includes detecting an instantaneous speed of the motor vehicle, determining a limited steering angle as a function of at least the instantaneous speed, detecting a steering angle demand, and activating an actuator for setting a steering angle of at least one wheel, at least as a function of the steering angle demand and having regard to the limited steering angle.

Abstract: A method is provided for operating an actuator of a steer-by-wire steering system of a motor vehicle at speeds from a standstill up to parking and/or maneuvering speeds. The method includes detecting an instantaneous steering angle of at least one wheel on an axle of the motor vehicle, detecting a steering angle demand, determining a limit value of an acceleration of a drive mechanism of the actuator at least as a function of the instantaneous steering angle, and activating the actuator for setting a steering angle of at least one wheel as a function of the steering angle demand and using the limit value of the acceleration.

Abstract: The invention relates to a brake disk comprising a ceramic friction ring (4) and a connecting flange (6) that is disposed concentric to the friction ring (4). The friction ring (4) is provided with a fastening ring (8) in an interior area, which encompasses fastening bores (10). The friction ring (4) is joined to the connecting flange (6) at the fastening bores (10) by means of fixing means. The invention is characterized in that the friction ring (4) is provided with relief slots (12) between the fastening bores (10) in the fastening ring (8), said relief slots (12) radially extending from an interior area of the fastening ring (8) in the direction of a friction zone (20) of the friction ring (4).

Abstract: A brake disk with a friction ring (2) and a linking element (4) which are interconnected by a threaded fastener arrangement (6). The threaded fastener arrangement (6)encompasses a screw, a nut, and an intermediate element (12). The intermediate element (12) prevents direct contact between the friction ring (2) and the linking element (4). Also provided is a sleeve element (14) that is disposed on a shaft (16) of the screw (8). A sliding block (18) is plugged onto the sleeve element (14). The intermediate element (12)at least partly encloses the sliding block such that thermal expansions acting in a radial direction can be compensated by a relative movement between the sliding block (18) and the intermediate element (12). The intermediate element also has a springy effect in an axial direction, whereby mechanical and thermal stresses can be compensated in the axial direction.

Abstract: The present invention concerns a steering shaft (4) of a steering column (1) and (4) for a motor vehicle steering assembly (2), wherein the steering shaft (4) includes a cylinder body (11) and a piston rod body (12) inserted telescopically therein, and on one end is connectible with a steering wheel (6) and at the other is connectible via a steering coupling (5) with a steering gear (7). The assembly of the steering shaft (4) can be simplified thereby, that the steering shaft (4) includes at least one (1) pneumatic connection (13), which communicates with a cylinder space (14), which is provided in the cylinder body (11) and which cylinder space is axially bordered from the piston rod body (12), in such a manner, that pressure actuation of the cylinder space (14) drives the piston rod body (12) to extend from the cylinder body (11).

Abstract: The invention relates to a brake disk (2) comprising a friction ring (4) and a brake disk hub (6). Both the friction ring (4) and the brake disk hub (6) are provided with a ring land (8, 10) which overlap in a concentric manner. The ring land (8, 10) encompass recesses (14, 16) through which a joining arrangement (12) is guided in the form of a connecting pin (20). Also provided is a support ring (18) which encloses the ring land (8) of the friction ring (4) in a sandwich-type manner along with the ring land (10) of the brake disk hub (6). The support ring (18) comprises recesses (22) within which ends of the connecting pin (20) are supportingly mounted.

Abstract: The invention relates to a brake disk comprising a ceramic friction ring (4) and a connecting flange (6) that is disposed concentric to the friction ring (4). The friction ring (4) is provided with a fastening ring (8) in an interior area, which encompasses fastening bores (10). The friction ring (4) is joined to the connecting flange (6) at the fastening bores (10) by means of fixing means. The invention is characterized in that the friction ring (4) is provided with relief slots (12) between the fastening bores (10) in the fastening ring (8), said relief slots (12) radially extending from an interior area of the fastening ring (8) in the direction of a friction zone (20) of the friction ring (4).

Abstract: The invention relates to a brake disk comprising a friction ring (2) and a linking element (4) which are interconnected by means of a screwing arrangement (6). The screwing arrangement (6) encompasses a screw, a nut, and an intermediate element (12). Said intermediate element (12) prevents direct contact between the friction ring (2) and the linking element (4). Also provided is a sleeve element (14) that is disposed on a shaft (16) of the screw (8). A sliding block (18) is plugged onto the sleeve element (14). The intermediate element (12) at least partly encloses the sliding block such that thermal expansions acting in a radial direction can be compensated by a relative movement between the sliding block (18) and the intermediate element (12). The intermediate element also has a springy effect in an axial direction, by means of which mechanical and thermal stresses can be compensated in said axial direction.

Abstract: The invention relates to a brake disk (2) comprising a friction ring (4) and a brake disk hub (6). Both the friction ring (4) and the brake disk hub (6) are provided with a ring land (8, 10) which overlap in a concentric manner. The ring land (8, 10) encompass recesses (14, 16) through which a joining arrangement (12) is guided in the form of a connecting pin (20). Also provided is a support ring (18) which encloses the ring land (8) of the friction ring (4) in a sandwich-type manner along with the ring land (10) of the brake disk hub (6). The support ring (18) comprises recesses (22) within which ends of the connecting pin (20) are supportingly mounted.

Abstract: A braking unit has (1) at least two brake shoes, each with a friction lining; (2) at least one brake disk rotor each of the outer surfaces of the brake disc rotor at least partially forming a friction surface of a ceramic-metal composite material for each friction lining respectively; and (3) at least one brake application device that acts on the brake shoes during braking operation. The friction linings of the brake shoes cover at least 15% of the friction surface of the brake shift rotor. The at least one brake application device is arranged so that the pressure which acts on the brake shoes during the braking operation acts essentially evenly on the friction surface.

Abstract: A reinforcing fiber, in particular for fiber composite materials, has a core which is provided with a layer of a pyrolysable binder. A coating of pyrolytic carbon or sugar is provided between the core and the layer fiber strands are provided with reinforcing fibers of this type and fiber strands are coated in this way. Fiber composite materials can be prepared with these reinforcing fibers. Processes for producing reinforcing fibers and composite materials involve coating fiber strands.

Abstract: A brake unit has a ceramic friction ring connected directly to a wheel hub by fastening bolts or by a spline shaft connection. To ensure good heat insulation between the friction ring and the hub and to achieve uniform torque transmission between the friction ring and the hub, the contact area between the friction ring and the fastening elements of the hub is provided with a plastically deformable heat-insulating layer.