Abstract: An actuator assembly may comprise: a motor having a motor shaft; and a motor housing comprising a housing body accommodating at least a part of the motor and a housing cover coupled to the housing body, wherein an idler configured to tension a drive belt rotatably coupled to the motor shaft. The actuator assembly further comprises one or more couplers configured to allow the housing cover to be movable or rotatable relative to the housing body such that the idler fixed to the housing cover is movable or rotatable according to movement or rotation of the housing cover to adjust tension of the drive belt.

Abstract: An electromechanical brake system comprises: a screw-nut mechanism comprising a rotatable body and a translatable body configured to be axially translatable relative to the rotatable body to move a brake pad according to rotation of the rotatable body; and an actuator assembly comprising a motor having a motor shaft, and a multiple-stage drive mechanism having belt and gear drive mechanisms and operably connecting between the motor shaft and the rotatable body of the screw-nut mechanism. The belt drive mechanism comprises: a drive belt; a drive pulley provided on the motor shaft; and a driven pulley connected to the drive pulley of the motor shaft via the drive belt, wherein the driven pulley is provided on an intermediate shaft. The gear drive mechanism comprises: a first gear provided on the intermediate shaft; and a second gear rotatably engaged with the first gear to rotate the rotatable body of the screw-nut mechanism.

Abstract: A vehicle steering system comprises: an input shaft rotatable in response to an input for moving vehicle wheels; a motor generating torque to be supplied to an output shaft through a belt assembly; a gear assembly; a rotary-linear conversion mechanism, and a sector gear; and the rotary-linear conversion mechanism combining rotary motion of the input shaft and the torque transferred from the motor. The torque generated by the motor can be transferred to the output shaft through the belt assembly, the gear assembly, the rotary-linear conversion mechanism, and the sector gear, thereby improving mechanical efficiency, reducing back-drive torque, and providing a multi-stage reduction mechanism to generate required pitman torque from the motor. The combined use of the belt assembly, the gear assembly, the rotary-linear conversion mechanism, and the sector gear enables to the motor to generate required steering torque, while meeting system back-drive performance requirements and current draw power requirements.

Abstract: An electromechanical actuator package for supplying toque to a handwheel, may comprise: a motor comprising a motor rotor shaft; a belt drive mechanism connecting the motor rotor shaft to an actuator output via a drive belt, the actuator output directly or indirectly connected to the handwheel; a circuit board; and a housing enclosing the motor, the belt drive mechanism and the circuit board, wherein the circuit board is positioned between one end of the motor rotor shaft and an inner surface of the housing. The actuator output may protrude from the driven pulley in a direction away from the circuit board and pass through an opening formed in the lower surface of the housing. Alternatively, the actuator output may protrude from the driven pulley toward the circuit board and pass through openings formed in the circuit board and the upper surface of housing.

Abstract: A electromechanical actuator package for actuating a brake assembly may comprise: a motor comprising a motor rotor shaft on which a drive pulley is formed; a multi-stage belt drive mechanism connecting the motor rotor shaft to an actuator output via a plurality of drive belts, the actuator output associated with the brake assembly; a circuit board; and a housing enclosing the motor, the multi-stage belt drive mechanism and the circuit board, wherein the circuit board is positioned between one end of the motor rotor shaft and an inner surface of the housing. The electromechanical actuator package may improve mechanical efficiency as well as reduce the packaging size and mass. Further, the electromechanical actuator package may reduce operational noise.

Abstract: A electromechanical actuator package for actuating a brake assembly may comprise: a motor comprising a motor rotor shaft on which a drive pulley is formed; a multi-stage belt drive mechanism connecting the motor rotor shaft to an actuator output via a plurality of drive belts, the actuator output associated with the brake assembly; a circuit board; and a housing enclosing the motor, the multi-stage belt drive mechanism and the circuit board, wherein the circuit board is positioned between one end of the motor rotor shaft and an inner surface of the housing. The electromechanical actuator package may improve mechanical efficiency as well as reduce the packaging size and mass. Further, the electromechanical actuator package may reduce operational noise.

Abstract: An electromechanical actuator package for supplying toque to a handwheel, may comprise: a motor comprising a motor rotor shaft; a belt drive mechanism connecting the motor rotor shaft to an actuator output via a drive belt, the actuator output directly or indirectly connected to the handwheel; a circuit board; and a housing enclosing the motor, the belt drive mechanism and the circuit board, wherein the circuit board is positioned between one end of the motor rotor shaft and an inner surface of the housing. The actuator output may protrude from the driven pulley in a direction away from the circuit board and pass through an opening formed in the lower surface of the housing.

Abstract: A non-contact angle/torque sensor comprises an upper rotor in an annular shape having a central axis, and in which magnets are located, the magnets positioned within the annular shape around the central axis with the north and the south poles of adjacent magnets being oriented opposite to one another, and a lower rotor in an annular shape and sharing the central axis of the upper rotor, and located spaced outwardly from an outer circumferential surface of the upper rotor. The lower rotor has upper and lower stators spaced apart along the central axis. The upper stator has upper and lower backplanes and a series of upper and lower extensions extending from the respective backplanes. The upper extensions and the lower extensions are not intermeshed or overlapped.

Abstract: Disclosed is a non-contact angle/torque sensor. The non-contact angle/torque sensor according to one embodiment of the present invention having an upper rotor in an annular shape having a central axis, and in which magnets are located, the magnets positioned within the annular shape around the central axis with the north and the south poles of adjacent magnets being oriented opposite to one another, and a lower rotor in an annular shape and sharing the central axis of the upper rotor, and located spaced outwardly from an outer circumferential surface of the upper rotor; the lower rotor having: upper and lower stators spaced apart along the central axis; the upper stator having: upper and lower backplanes and a series of upper and lower extensions extending from the respective backplanes, wherein the upper extensions and the lower extensions are not intermeshed or overlapped.