A stator assembly has coils in a distributed winding configuration. A poly-phase switched reluctance motor assembly may include a stator assembly with multiple coils in a distributed winding configuration. The stator assembly may have a central bore into which a rotor assembly having multiple poles is received and configured to rotate. A method of controlling a switched reluctance motor may include at least three phases wherein during each conduction period a first phase is energized with negative direction current, a second phase is energized with positive current and there is at least one non-energized phase. During each commutation period either the first phase or second phase switches off to a non-energized state and one of the non-energized phases switches on to an energized state with the same direction current as the first or second phase that was switched off. The switched reluctance motor may include a distributed winding configuration.

A stator assembly has coils in a distributed winding configuration. A poly-phase switched reluctance motor assembly may include a stator assembly with multiple coils in a distributed winding configuration. The stator assembly may have a central bore into which a rotor assembly having multiple poles is received and configured to rotate. A method of controlling a switched reluctance motor may include at least three phases wherein during each conduction period a first phase is energized with negative direction current, a second phase is energized with positive current and there is at least one non-energized phase. During each commutation period either the first phase or second phase switches off to a non-energized state and one of the non-energized phases switches on to an energized state with the same direction current as the first or second phase that was switched off. The switched reluctance motor may include a distributed winding configuration.

An axle drive unit may be employed by an electrically-driven motor vehicle having at least one drive axle. The axle drive unit may have at least one electric motor for generating a drive torque and at least one gearing (or transmission) for transmitting the drive torque to the drive axle. The electric motor and the gearing may form a structural unit. In short, the axle drive unit allows a drive train of a motor vehicle to have the simplest, weight-saving construction possible. Power electronics and an inductive charging receiver for a battery system may be integrated into the structural unit. The power electronics may be electrically connected to the inductive charging receiver and may be tuned to rectify an alternating voltage that can be induced in the inductive charging receiver.

An electric motor that can facilitate a process of manufacturing the electric motor. The electric motor includes a substrate mounted with an electronic component, a first connector provided on a stator, the first connector configured to receive a power signal input to a coil and a communication signal with the electronic component, and a wiring structure communicably connecting the electronic component and the first connector. The wiring structure has a second connector mounted on the substrate, and a third connector fixed to the stator, the third connector configured to be connected to the second connector and configured to attach the substrate to the stator by an operation of moving the substrate toward the stator.

An electric machine includes at least a printed circuit board and a magnetically permeable element. The printed circuit board includes a reluctance coil configured to generate a voltage in presence of a magnetic flux. The magnetically permeable element has a first end positioned adjacent to a rotor of the electrical machine and a second end positioned adjacent to the coil of the printed circuit board. In some examples, rotation of the rotor causes a change in the magnetic flux through the magnetically permeable element and generation of the voltage across the reluctance coil.

A rotary reciprocating drive actuator which includes a base portion including a bottom portion, and a pair of wall portions erected from both ends of the bottom portion; a movable body including a shaft portion rotatably supported by the pair of the wall portions via a bearing in such a manner that a movable magnet disposed at an outer side surface of one wall portion of the pair of the wall portions; and a drive unit including a core body and a coil body, the drive unit being attached to the outer side surface of the one wall portion, wherein another wall portion of the pair of wall portions is configured to be detachable from or adjustable in position with respect to the bottom portion.

The present invention relates to an electromechanical battery comprising a single pole-pair Halbach array of permanent magnets incorporated into an annular flywheel, which together comprise a rotor assembly, a means for levitating the rotor assembly using a “double-lift” attractive magnetic levitator under active control, and a means for actively stabilizing the spinning rotor assembly by interaction with the fringe fields of the Halbach array.

The present invention relates to an electromechanical battery comprising a single pole-pair Halbach array of permanent magnets incorporated into an annular flywheel, which together comprise a rotor assembly, a means for levitating the rotor assembly using a “double-lift” attractive magnetic levitator under active control, and a means for actively stabilizing the spinning rotor assembly by interaction with the fringe fields of the Halbach array.

In this optical rotary encoder, detection tracks of a rotating disc are irradiated with detection light emitted from a light-emitting element. An optical signal obtained via slits in the detection tracks passes through a slit pattern in a fixed slit plate and is received by light-receiving surfaces of a light-receiving element. The slit pattern in the fixed slit plate is formed so as to fit into a range of an effective spot of the detection light. An LED or other light-emitting element that has a small effective spot diameter can be used, which is advantageous in terms of reducing costs and making the device more compact.

A rotary actuator including a motor, gears, and a sensor connected to an output shaft. Electronics is communicatively connected to monitor sensor position and output a simulated optical encoder response. An actuator has a base; a motor coupled to the base; a transmission communicatively connected to the motor to transmit rotary power from the motor; an output shaft communicatively connected to the transmission, the output shaft being adapted or configured to be connected to an article or apparatus to be actuated; and a magnetic, non-contact sensor communicatively connected to the output shaft whereby the sensor measures output shaft position with calibration