A DC motor with a one-way bearing applicable for driving various different electrical products includes a chassis, a motor shaft, a front output shaft and a rear output shaft. Front and rear one-way bearings are installed between the front end of the motor shaft and the inner end of the front output shaft and between the rear end of the motor shaft and the inner end of the rear output shaft and they are rotated in opposite directions. In a power output mode, the forward rotation of the motor shaft drives the front output shaft to rotate in a forward direction synchronously while the rear output shaft remains still, or the reverse rotation of the motor shaft drives the rear output shaft to rotate in a reverse direction synchronously while the front output shaft remains still.

In some embodiments, an apparatus may include a wheel module including a linear actuator, a piston, a drive element, and a coil. The linear actuator may include a stator and a piston configured to fit within the stator. The piston includes a plurality of permanent magnets responsive to coils of the stator to move relative to the stator. The apparatus further includes a drive element threadably coupled to an external surface of the linear actuator. The drive element includes a plurality of permanent magnets responsive to the coils of the stator to move relative to the stator. The apparatus also includes a coil configured to fit over the linear actuator.

In some embodiments, a system can include an integrated wheel module coupled to a rim of a tire and to a structure of a vehicle. The integrated wheel module can include control electronics and a power supply. The integrated wheel module may further include a plurality of electric motors, including a first motor responsive to the control electronics and configured to rotate the tire about an axis; a second motor responsive to the control electronics and configured to turn the tire about a pivot point; a third motor responsive to the control electronics and configured to continuously and dynamically adjust a camber of the tire; a fourth motor responsive to the control electronics and configured to continuously and dynamically adjust a suspension associated with the tire; and a fifth motor configured to adjust the suspension spring in accordance with the load, conditions and optimum performance desired.

In some embodiments, an apparatus may include a frame structure including a first end configured to couple to a frame of a vehicle and including a second end. The second end includes an upper attachment element and a lower attachment element. The apparatus further includes a camber housing coupled between the lower attachment element and a wheel. The camber housing includes a guide element and configured to pivot about the lower attachment element. The apparatus includes a slider coupled to the upper attachment element and configured to move along the guide element to provide a dynamically and continuously variable adjustable camber angle.

A framework is disclosed for holding magnets to provide a stator for an electric motor, in particular for a starter motor. The framework is adapted to removably receive, retain and space apart a plurality of magnets within the framework to form a tubular magnet array and provide said stator. The framework may provide a stator which is easier to assemble and more reliable than known stators. The framework provides a central aperture for receiving a rotor armature of said electric motor. The framework is arranged to be slidably inserted or removed from a housing of said electric motor. A frame portion, a stator, an electric motor, a vehicle drive assembly and a method of assembling an electric motor are also described. A brush housing comprising a plurality of passages for slidably retaining brushes and comprising a plurality of bias housings, and a brush assembly comprising the brush housing are also described.

A powertrain for a vehicle includes and electric machine and a plurality of inverters. The electric machine may include a stator defining a plurality of stator teeth separated by slots that are configured to accept windings. The plurality of inverters may each be configured to exclusively drive a current in some but not all of the windings within slots such that some of the plurality of stator teeth within a sector of the stator are configured to be energized by only one of the inverters.

An electric machine includes a stator carrying two sets of multiphase windings. The sets are electrically isolated from each other and have an angular space displacement of A electric corresponding to a torque ripple of harmonic order N. Responsive to current flow through the sets with a phase shift of A electric, N1 harmonic orders of resulting stator magnetic fields cancel to preclude formation of the torque ripple of harmonic order N.

A dual axis linear motion system utilizing one or more printed circuit boards embedded within a stage wherein the system components, including the controller, drive, and controller, may be mounted to a printed circuit board (PCB), and the electrical communications between the system components and the power to the system components are supplied through traces or etchings on the printed circuit board, thereby omitting the need for additional power and communication cables.

A basic electromagnetic component includes an electromagnetic circuit, which is composed of magnetic core and of coil and of one or more optional parts; of permanent magnet and/or of control unit. In the electromagnetic power unit motors, generators or linear motors implemented with basic electromagnetic components are connectable for different current and voltage values by changing the connections of electromagnetic components. An electronic switching module includes internal electronic or electromechanical switches and/or inverters which is composed of control unit to switch and invert polarities of sections of phase coils of an electric motor or generator during its operation and of at least two phase coil sets connected in series or parallel, or in combinations of these, and switching connections between phase coils or phase coil sets in series or in parallel to adjust power and speed in steps by using electric gears.

An electromagnetic unit configured for being employed in a stator of an electric machine. The electromagnetic unit is constituted by a unitary solid body, and comprises a neck portion constituted by two end extensions sufficiently spaced apart for receiving therein a portion of a driven component of the electrical machine. The end extensions define therebetween a symmetry axis. The electromagnetic unit further comprises a frame extending from the end extensions and lying on the same or parallel plane as that of the end extensions. The frame has a first frame portion extending to one side of the symmetry axis to an extent W1, and a second frame portion extending to the other side of the symmetry axis to an extent W2<W1. W1, W2 are measured perpendicular to the symmetry axis, and wherein at least the first frame portion is configured for receiving therein a coil of the electrical machine.