An actuator of an electric parking brake is disclosed. An actuator of an electric parking brake according to one embodiment of the present invention includes a driving unit which outputs a rotational force through a driving shaft, a first gear unit which receives the rotational force from the driving unit, a second gear unit including a rotation shaft which receives the rotational force from the first gear unit to rotate, and a driving shaft control unit which is disposed on the driving shaft, provides a degree of rotational freedom to the driving shaft during braking, and fixes the driving shaft to prevent reverse rotation of the driving shaft due to a reverse rotation torque when the braking is ended.

A coupling and control assembly includes first and second rotatable coupling members. The first coupling member has a first coupling face with locking formations, and the second coupling member has a second coupling face with pockets and in opposition with the first coupling face of the first coupling member and a third face spaced from the second coupling face and with passages communicating with the pockets. Locking members in the pockets transmit torque between the first and second coupling members. A stator includes an electromagnetic source, and a translator is translatable, rotatable, and coupled to the second coupling member to be rotatable therewith. The translator may include springs in the passages to actuate the plurality of locking members, or a permanent magnetic source cooperative with the electromagnetic source to translate the translator. An apertured retainer plate may be coupled to the second coupling member to facilitate pivoting of the plurality of locking members.

A rotation braking device includes a clutch mechanism disposed between an inner member and an outer member. The clutch mechanism includes an electromagnetic actuator which controls relative rotation of the cage such that, due to the relative rotation, engaging elements are moved between an engaged position and a neutral position. An armature is rotationally fixed relative to the cage, and can be directly magnetically attracted to an electromagnet which is rotationally fixed relative a housing that houses the clutch mechanism. The outer member is directly supported in a radial direction by the housing and engages the housing so as to limit relative rotation relative to each other.

A clutch assembly for a motor vehicle drivetrain for coupling coupling elements for conjoint rotation includes a clutch unit, a brake unit and at least one permanent magnet between the clutch unit and the brake unit. The clutch unit is shiftable into a coupling state in which the coupling elements are coupled to one another by shifting the clutch unit from a first position in which the coupling elements are decoupled into a second position in which the coupling elements are coupled. First and second electrically energizable coils are electrically energizable to move the permanent magnet from the first position into the second position or vice versa. A holding plate is located adjacent to the at least one permanent magnet to suppress magnetic flux from the at least one permanent magnet to the brake unit. A motor vehicle drivetrain containing at least one clutch assembly is also provided.

This device is magnetic brake assist, traction control and forward assist. It uses magnets inserted in the vehicles rims and in a stationary hub bolted behind the wheels hub and brake disk; to either slow the rotation of the tire down or speed the rotation up for braking and or for forward assist.

The present disclosure relates to a brake mechanism, a joint actuator and a robot. The brake mechanism includes a friction member configured to be fixed to a rotor of the motor, a brake member abutting against one side of the friction member, a pushing member abutting against the other side of the friction member and configured to provide an adjustable pushing force to the brake member, a locking mechanism configured to prevent the brake member from rotating according to a brake command.

A transport apparatus includes a transport rail extending along a predetermined path, a transport vehicle configured to be movable along the transport rail to transport a material, and a brake unit mounted on the transport vehicle to be adjacent to the transport rail and configured to apply an eddy current braking force to the transport vehicle.

Aspects of the disclosure provide an electric actuator including a first driving source coupled to an output through a first pathway created by a transmission, a second driving source coupled to the output though a second pathway created by the transmission that, upon the electric actuator losses electrical power to the electric actuator, causes the output to be positioned at a fail-safe position, a differential coupled to the first driving source and the second driving source through a third pathway created by the transmission to store energy from the first driving source in the second driving source, and an eddy current brake coupled to the output through the transmission that reduces a speed at which the second driving source moves the output to the fail-safe position.

An electromechanical brake system having a suspension control function. The electromechanical brake system includes: an electromechanical brake connected to each wheel of a vehicle to brake the vehicle, a suspension configured to control suspension of the vehicle, a motor configured to provide driving force to the electromechanical brake or to the suspension, a first clutch configured to connect the electromechanical brake and the motor to each other, a second clutch configured to connect the suspension and the motor to each other, and a controller configured to output a control signal for controlling the motor to be connected to one of the first clutch and the second clutch based on a state signal of the vehicle.

An electromotive actuator assembly for an electromechanical vehicle brake is disclosed having a transmission that comprises transmission shafts, cylindrical brake surface provided in the transmission and which encircles an axis of rotation, and a blocking element mounted eccentrically with respect to the axis of rotation. The blocking element is adjustable about a pivot axis by a drive unit and can be placed in contact with the cylindrical brake surface. The blocking element is arranged so as to become wedged together with the cylindrical brake surface with self-locking action in only one direction of rotation of the cylindrical brake surface about the axis of rotation (A). The disclosure also relates to a method for activating and deactivating a parking brake function.