The disclosure relates to a steering wheel actuator unit for a steer-by-wire steering apparatus for a motor vehicle and having a steering axle, wherein a free end of the steering axle is designed for arranging a steering wheel and the steering axle is rotatably mounted about its longitudinal axle, the steering wheel actuator unit comprising at least one feedback device which acts on the steering axle to realize a predetermined torque and/or a predetermined damping, and a spindle device connected to the steering axle for providing end stops for the rotational movement of the steering axle. In order to be able to reduce and/or avoid incorrect operation in case of failure of the feedback device, the steering wheel actuator unit further comprising an eddy current device which generates a resistance for the rotation of the steering axle about its longitudinal axle.

A magnetic hysteresis brake (10), comprising at least a first member (11.1) carrying first magnets (17.1) and a second member (12) made of magnetic material, each first magnet having a first surface (15.1) facing a first surface (14) of the second member (12) in order to generate a first magnetic flux towards the second member (12) through said surfaces, characterised in that the first magnets (17.1) are separated from one another by magnetic elements (18.1) which are made of a magnetic flux-conducting material and which have a first surface facing the first surface (14) of the second member (12) and close to the first surface (15.1) of the adjacent first magnets (17.1) in order to let pass a second magnetic flux the direction of which is opposite to the first flux of the first adjacent magnets, the first surface of the magnetic elements being of smaller size than the first surface (15.1) of the first magnets. The invention also relates to a control instrument and to a vehicle comprising such a brake.

Systems and methods for a magnetic braking system for controlling the descent of a payload against gravity are disclosed herein. The magnetic braking system may allow for a user to descend along a descending structure, such as a rope, hands-free. A plurality of conductive bands, comprising a non-ferromagnetic material, may be affixed to an exterior of the descending structure. The payload may be connected to the descending structure via a lanyard having a collar that circumferentially attaches to the descending structure. The collar may comprise magnetic assemblies arranged as a linear Halbach array. As the collar translates past the conductors, eddy currents may be generated within the conductive bands, resulting in a repelling magnetic field that may provide a braking force that acts upon the collar, thereby slowing the descent of the payload.

A braking system for use with a crusher having a moving crushing member and a stationary crushing member. The braking system is positioned and is operable to restrict rotational movement of the moving crushing member. The braking system includes a braking disc or plate and one or more braking yokes that each include a magnetic member, such as a permanent magnet or an electric magnet. The braking disc is formed from an electrically conductive material and is perpendicular to the magnets of the braking yoke. Relative movement between the braking disc and the braking yoke induces an eddy current in the braking disc. The induced eddy current creates a magnetic force that opposes rotational movement of the moving crushing member. The braking system can be used with a compact eccentric crusher to restrict the rotation of a crushing roller during an idle mode.

Systems and methods for a magnetic braking system for controlling the descent of a payload against gravity are disclosed herein. The magnetic braking system may allow for a user to descend along a descending structure, such as a rope, hands-free. A plurality of conductive bands, comprising a non-ferromagnetic material, may be affixed to an exterior of the descending structure. The payload may be connected to the descending structure via a lanyard having a collar that circumferentially attaches to the descending structure. The collar may comprise magnetic assemblies arranged as a linear Halbach array. As the collar translates past the conductors, eddy currents may be generated within the conductive bands, resulting in a repelling magnetic field that may provide a braking force that acts upon the collar, thereby slowing the descent of the payload.