An electric winding exchanger system for a multi-phase electric motor with multiple isolated neutrals and multiple coil paths increases torque or speed performance of multi-phase electric motors and electric drive modules. The system includes an electronic control unit, a back electromotive force (EMF) boosting circuit, a plurality of high-voltage terminals, an electric motor, and a motor control unit. The electronic control unit receives and processes commands from the motor control unit. The back EMF boosting circuit adjusts the winding arrangements of the electric motor in order to change the state of the electric motor. The plurality of high-voltage terminals transfers high voltage electrical energy from the back EMF boosting circuit to the electric motor and vice versa. The motor control unit allows a user to input commands in order to activate increased torque or speed performance for the electric motor. The electric motor is preferably a multi-phase electric motor of an electric or hybrid vehicle.

A direct current machine comprises a stator and a rotor, one of them having a plurality of magnets alternatively magnetized north and south and the other one of them having a plurality of coils formed by winding insulated wire around teeth in order to provide a three-phase winding, wherein slots are formed between said coils and the coils are grouped in coil groups of four coils each, and a current controlled inverter for driving said machine, wherein each coil group has the same winding pattern so that each first coil of a coil group, seen in a direction of rotation, is wound in the same winding direction and two, in the direction of rotation, consecutive coil groups of the same phase are connected such that current flows through one in the direction of rotation and through the other one in a direction opposite to the direction of rotation.

A coil includes a resin substrate, a first coil structure formed on a first surface of the resin substrate, a second coil structure formed on a second surface of the resin substrate on the opposite side with respect to the first surface such that the second coil structure is formed at a position corresponding to the first coil structure, a third coil structure formed on the second surface such that the third coil structure is positioned adjacent to the second coil structure, and a fourth coil structure formed on the first surface such that the fourth coil structure is formed at a position corresponding to the third coil structure. The resin substrate is folded such that the second coil structure and the third coil structure oppose each other.

An electronic component mounting substrate includes an electronic component mounted on a surface of a substrate, an electrode portion disposed on the surface of the substrate and electrically connected to the electronic component, a lead wire connected to the electrode portion, and an encapsulation resin configured to encapsulate a part of the lead wire, the electronic component, and the electrode portion. A surface of at least the part of the lead wire encapsulated by the encapsulation resin and the surface of the substrate are coated with a deposited film.

A motor control apparatus which is applied to an actuator provided with a motor and an encoder, and drives the motor is provided. The motor control apparatus comprises: a controller that learns an initial position of a rotor, and also decides an energized phase; and a drive circuit that performs switching operation to energize an energized phase. The controller learns that, in learning the initial position, the initial position of the rotor is a two-phase facing position in which two adjacent salient poles of the rotor face salient poles of two energized phases of a stator, and the initial position of the rotor is a one-phase facing position in which one salient pole of the rotor faces a salient pole of one non-energized phase of the stator.

A stationary portion includes a stator unit including coils in an annular shape with a central axis as a center; a base portion below the stator unit; and a housing defining an interior space in which a rotating portion, a bearing portion, and the stator unit are accommodated. The base portion includes a through hole extending through the base portion in an axial direction to join an outside of the housing and the interior space to each other; a sheet covering an upper opening of the through hole to close the through hole; a filler covering a lower opening of the through hole; and a vent passage defined in at least one of the base portion and the sheet to join the through hole and the interior space to each other.

A stationary portion includes a stator unit including coils in an annular shape with a central axis as a center; a base portion below the stator unit; and a housing defining an interior space in which a rotating portion, a bearing portion, and the stator unit are accommodated. The base portion includes a through hole extending through the base portion in an axial direction to join an outside of the housing and the interior space to each other; a sheet covering an upper opening of the through hole to close the through hole; a filler covering a lower opening of the through hole; and a vent passage defined in at least one of the base portion and the sheet to join the through hole and the interior space to each other.

The present invention relates to electrical generators and, in particular, to improvements to efficiency in electromechanical energy conversion in electrical generators and electric motors. The regenerative acceleration generator coil according to the present invention takes advantage of the structure of a high impedance multiple-loop salient pole winding or low impedance bi-filar windings to create a positive armature (accelerative) reaction rather than a negative (decelerative) reaction as exhibited by prior art generators which only have low impedance multiple loops of wire making up their rotor armature. The generator of the present invention reverses these negative effects by delaying current flow in the coil until the rotating magnetic field reaches TDC.

The present invention relates to electrical generators and, in particular, to improvements to efficiency in electromechanical energy conversion in electrical generators and electric motors. The regenerative acceleration generator coil according to the present invention takes advantage of the structure of a high impedance multiple-loop salient pole winding or low impedance bi-filar windings to create a positive armature (accelerative) reaction rather than a negative (decelerative) reaction as exhibited by prior art generators which only have low impedance multiple loops of wire making up their rotor armature. The generator of the present invention reverses these negative effects by delaying current flow in the coil until the rotating magnetic field reaches TDC.

A motor is disclosed. The motor includes a stator with a stator coil to generate a periodic magnetic field and a rotor. An air gap is disposed between the stator and the rotor. The rotor has at least one rotor ring, a portion of the rotor ring is disposed in the air gap. Due to the magnetic field, a periodic current is induced in the rotor ring. The current flowing through the portion of the rotor ring disposed in the air gap flows in a first direction to rotate the rotor relative to the stator.