Abstract: A passive haptic interface includes a first element which is rotatably movable about an axis or translatably movable along an axis, the first movable element rotating or moving opposite a second fixed element. The first movable element has a first plurality of magnetic poles spaced periodically at a pole pitch Ps and in the direction of movement, and the second fixed element has a second plurality of magnetic poles periodically spaced at a pole pitch Pr and in the direction of movement, where Ps and Pr are different numbers. A periodic stress is created by the magnetic interaction between the first movable element and the second fixed element in a period Pt. The pole pitches Ps and Pr are chosen such that Pt is strictly less than the smallest of the pitches Ps and Pr.

Abstract: A control device comprising at least one permanent magnet, and a mechanically guided member for enabling a relative movement between a. a first ferromagnetic structure, b. a second ferromagnetic structure comprising at least one electric coil, the electric coil modifying the magnetization state of the second ferromagnetic structure in accordance with the direction and the amplitude of the electric current flowing in the coil, the device furthermore comprising a position detection means for detecting the relative position of the first and second ferromagnetic structures, and a circuit for driving the supply current of the coil, which varies as a function of the signal delivered by the position detection means.

Abstract: The present disclosure relates to a passive haptic device comprising a mechanical member moving with respect to a second mechanical member, one of the mechanical members having a plurality of magnetized zones spaced periodically according to a pitch P1, the other of the mechanical members having a second plurality of magnetized zones spaced periodically according to a pitch P2, a force that varies periodically as a function of the relative position of the mechanical members being created by the magnetic interaction between the mechanical members, the magnetic interaction varying according to a period Pt, wherein all the magnetized zones of at least one of the mechanical members are magnetized in the same sense.

Abstract: A passive haptic interface includes a first element which is rotatably movable about an axis or translatably movable along an axis, the first movable element rotating or moving opposite a second fixed element. The first movable element has a first plurality of magnetic poles spaced periodically at a pole pitch Ps and in the direction of movement, and the second fixed element has a second plurality of magnetic poles periodically spaced at a pole pitch Pr and in the direction of movement, where Ps and Pr are different numbers. A periodic stress is created by the magnetic interaction between the first movable element and the second fixed element in a period Pt. The pole pitches Ps and Pr are chosen such that Pt is strictly less than the smallest of the pitches Ps and Pr.

Abstract: An adjustable force device comprises a member that is mechanically guided for allowing a displacement according to a predetermined trajectory, and means for magnetically indexing the displacement by the magnetic interaction between a first ferromagnetic structure and a second ferromagnetic structure integral with a magnet, wherein the magnet is at least partially surrounded by an electric coil that modifies the magnetization of the permanent magnet according to the direction and the amplitude of the electric current flowing in the coil.

Abstract: A user input device including a rotary input control having a wheel and an electropermanent magnet (EPM) assembly, the EPM assembly comprising a permanent magnet and a magnetizing assembly configured to control a polarization of the permanent magnet to transition the electropermanent magnet assembly from a first state in which the EPM assembly applies a first resistance profile to the wheel and a second state in which the EPM assembly applies a second resistance profile to the wheel. The EPM assembly includes magnetically conductive members positioned at opposing ends of the electropermanent magnet, each magnetically conductive member comprising a respective plurality of teeth protruding radially toward the wheel, and each of the magnetically conductive members comprising a respective magnetic pole depending on a polarized state of the EPM assembly.

Abstract: A locking device includes a mobile locking member, movement of which can be prevented by a blocking member interacting with a motorized lever, where the motorized lever is capable of rotational movement about an axis with respect to the supporting structure, the centre of gravity of the lever lying on the axis, the lever being kept in a determined stable position and without rigid mechanical contact of the lever with the supporting structure apart from its axis of rotation.

Abstract: A user input device including a rotary input control having a wheel and an electropermanent magnet (EPM) assembly, the EPM assembly comprising a permanent magnet and a magnetizing assembly configured to control a polarization of the permanent magnet to transition the electropermanent magnet assembly from a first state in which the EPM assembly applies a first resistance profile to the wheel and a second state in which the EPM assembly applies a second resistance profile to the wheel. The EPM assembly includes magnetically conductive members positioned at opposing ends of the electropermanent magnet, each magnetically conductive member comprising a respective plurality of teeth protruding radially toward the wheel, and each of the magnetically conductive members comprising a respective magnetic pole depending on a polarized state of the EPM assembly.

Abstract: A locking device includes a mobile locking member, movement of which can be prevented by a blocking member interacting with a motorized lever, where the motorized lever is capable of rotational movement about an axis with respect to the supporting structure, the centre of gravity of the lever lying on the axis, the lever being kept in a determined stable position and without rigid mechanical contact of the lever with the supporting structure apart from its axis of rotation.

Abstract: A linear actuator includes a brushless polyphase synchronous electric motor having a stator and a rotor. The rotor acts on a control element via a driver which can transform the rotation movement thereof into a linear movement over several rotations. Preferably, the inventive actuator comprises elastic and/or magnetic return device which can systematically return the control element to a reference position when the power supply to the motor is cut. The motor has a position detection device which, together with an electronic control unit, is used for the automatic control and regulation of the position of the rotor and, therefore, the control element.

Abstract: A linear actuator includes a brushless polyphase synchronous electric motor having a stator and a rotor. The rotor acts on a control element via a driver which can transform the rotation movement thereof into a linear movement over several rotations. Preferably, the inventive actuator comprises elastic and/or magnetic return device which can systematically return the control element to a reference position when the power supply to the motor is cut. The motor has a position detection device which, together with an electronic control unit, is used for the automatic control and regulation of the position of the rotor and, therefore, the control element.