An electric motor for driving a vehicle flap is provided, the electric motor including a hollow-cylindrical shaped stator made of a permanent-magnetic material and arranged coaxially to a motor axis, a motor shaft disposed coaxially with the motor axis and at least partially within the stator and mounted for rotation relative to the stator about the motor axis, and a drive rotor disposed within the stator and mounted on the motor shaft and including a plurality of coils for driving rotation of the motor shaft relative to the stator about the motor axis. The electric motor includes a braking rotor disposed in the stator, mounted on the motor shaft along the motor axis adjacent the drive rotor, the brake rotor being magnetisable by the stator. Use of the electric motor for driving a vehicle flap and to a method of manufacturing the electric motor is also provided.

A controller controls switching between a braked state in which a movable meshing part 7 comes close to and meshes with a motor meshing part 6 and a brake released state in which the movable meshing part 7 is separated from the motor meshing part 6.

The disclosure relates to a brake device for an electric motor, which has at least one armature winding and at least one field winding, comprising at least one open-loop and/or closed-loop control unit at least for open-loop control and/or closed-loop control of at least one electric current through the armature winding and/or through the field winding. According to the disclosure, in the event of short-circuit braking of the electric motor, the open-loop and/or control-loop unit is intended to reduce, at least temporarily, an electric armature current flowing through the armature winding.

The disclosure relates to a brake device for an electric motor, which has at least one armature winding and at least one field winding, comprising at least one open-loop and/or closed-loop control unit at least for open-loop control and/or closed-loop control of at least one electric current through the armature winding and/or through the field winding. According to the disclosure, in the event of short-circuit braking of the electric motor, the open-loop and/or control-loop unit is intended to reduce, at least temporarily, an electric armature current flowing through the armature winding.

A vehicle drive device with a reduction device includes an input driving unit that provides a driving force, a transmission part comprising a first rotor, a second rotor, and a stator stacked in a rotational axial direction of the input driving unit, and an output part connected to one of the first rotor or the second rotor. In particular, the input driving unit is connected to the other of the first rotor or the second rotor.

A vehicle drive device with a reduction device includes an input driving unit that provides a driving force, a transmission part comprising a first rotor, a second rotor, and a stator stacked in a rotational axial direction of the input driving unit, and an output part connected to one of the first rotor or the second rotor. In particular, the input driving unit is connected to the other of the first rotor or the second rotor.

Disclosed is an electric machine comprises a resolver which comprises a resolver rotor and a resolver stator, the resolver rotor being assembled by: applying a DC voltage across at least one phase of windings the electric machine to create a static magnetic field by a DC electric current flowing through the at least one phase of windings of the three-phase windings, the static magnetic field forcing a machine rotor to rotate to an angular orientation where an N-S direction of magnets of the machine rotor is aligned with an N-S direction of the static magnetic field and keeping the machine rotor stably in this angular orientation; and pushing the resolver rotor onto a machine shaft in an axial direction in a state that the machine rotor is kept in the angular orientation by the static magnetic field.

An actuator (202) includes a stick-shaped center yoke (1) inserted through a cylindrical outer yoke (10), a support member that supports the outer yoke (10) such that the outer yoke (10) is linearly movable in an axial direction of the center yoke (1), a first coil (2), a second coil (3), and a third coil (4) wound around the center yoke (1), a first magnet array (11) and a second magnet array (12) disposed on an inner periphery of the outer yoke (10) in such a manner as to face the first coil (2), the second coil (3), and the third coil (4), a flat base plate (13) disposed at a first end portion of the center yoke (1), and a heat radiation member touching the base plate (13).

An integrated flywheel control apparatus for applying resisting force or driving force to a flywheel includes a resistance applying device mounted to an outer frame of a stator holder frame and arranged in a receiving space of a flywheel. A power generation/drive device is positioned on an inner frame of the stator holder frame. When the flywheel is acted upon by an external force to rotate, the power generation/drive device is caused by the rotation of the flywheel to rotate and a plurality of power actuating windings of the power generation/drive device generate electrical energy. The electrical energy is supplied to resistance applying device to apply a resisting force to the flywheel. When the power actuating windings of the power generation/drive device is supplied with an external electrical power, the power actuating windings are electromagnetically coupled to a plurality of magnets circumferentially arranged on an axle portion of the wheel to drive the flywheel to rotate.

A high torque reluctance brake device for fitness equipment, comprising: an external rotor including a flywheel and an outer ring body; at least two magnetic resistance mechanisms, each of them has a brake field core, a magnetic coil; a support frame for arranging magnetic resistance mechanisms to form an angle larger than 30 degree and to make between the outer periphery of the brake field core and the outer ring body has a gap; the control circuit unit transmits suitable current to the magnetic coil, then between the brake field core and the magnetic ring produced a eddy current magnetic resistance and forms a reverse resistance to the external rotor. By choosing different resistance setting can increase the variability of exercise and improve the comfort of exercise.