Abstract: An electric motor includes a stator having a stator coil, a rotor, a motor housing having a through hole, a fixing portion extending from the stator within the motor housing towards the through hole, a load receiving member inserted into the through hole and having a through bore, a conductive member connected to an electric power supply wire member and arranged at a first end portion of the load receiving member, a first terminal connected to the stator coil and provided between a second end portion of the load receiving member and the fixing portion, and a screw bolt fixing the conductive member, the load receiving member and the first terminal on the fixing portion, so that the load receiving member is press-fixedly sandwiched by the conductive member and the first terminal so that an electric power flows therebetween via the load receiving member.

Abstract: A rotary electric machine includes a stator that creates a rotating magnetic field, and a rotor around which a rotor winding is wound so that induced electromotive force is created by a harmonic component of the rotating magnetic field, and in which a magnetic pole is created through the induced electromotive force. The stator has an auxiliary pole that is a leading portion that leads the harmonic component from the stator to the rotor.

Abstract: A cooling structure for an in-wheel motor includes an in-wheel motor mounted within a wheel of a vehicle to drive the wheel or to be driven by the wheel, and an oil channel and a fin serving as “heat radiating portions” to facilitate cooling of the in-wheel motor. The in-wheel motor has a case serving as a “housing”. The “heat radiating portion” is located apart from the case.

Abstract: A superconducting electric motor includes: a rotor that is rotatably arranged; and a stator that is arranged in a radial direction of the rotor so as to face the rotor. The stator has a plurality of superconducting coils that are wound at a radial end portion of a stator core and that are formed of a superconducting wire material. The superconducting electric motor includes a refrigerator that has at least one narrow tube that flows low-temperature refrigerant inside. The at least one narrow tube is in thermal contact with the stator core and at least one of the coils.

Abstract: A superconducting electric motor includes: a rotor rotatably arranged; a stator arranged in a radial direction of the rotor to face the rotor; and a refrigerator having at least one narrow tube that flows low-temperature refrigerant inside. The stator has a plurality of superconducting coils wound at a radial end portion of a stator core and formed of a superconducting wire material. The at least one narrow tube has a core penetrating portion that is provided to penetrate through the stator core. Alternatively, the refrigerator has a plurality of narrow tubes, and at least part of each narrow tube is provided in the stator core. Connecting portions that are refrigerant supply/drain connecting portions at both ends of each of the plurality of narrow tubes are provided on both axial sides of the stator at opposite sides in a diametrical direction with respect to a rotation central axis of the rotor.

Abstract: A superconducting electric motor includes: a rotor that is rotatably arranged; and a stator. The stator has a plurality of teeth provided on one radial end portion of a stator core and slots, each of which is provided between two of the plurality of teeth, adjacent in a circumferential direction of the stator. Coils are respectively wound around the teeth. The superconducting electric motor further includes a refrigerator that has a narrow tube that flows low-temperature refrigerant inside. At least part of the narrow tube is arranged between two of the coils, adjacent in the circumferential direction of the stator, in one of the slots.

Abstract: Front left and right wheel units are driven by an engine and a motor generator. Rear left and right wheel units are independently driven by in-wheel motor type motor generators. The motor generator and the motor generator are configured to have different rated outputs, respectively, and be subjected to different speed reduction ratios, respectively, between the motor generators and their respectively associated drive wheel units, and thus have characteristics, respectively, in efficiency with respect to torque and vehicular speed, that exhibit high efficiency in mutually different output ranges, respectively. When a mileage oriented mode is selected as a traveling mode, an ECU determines how a drive torque should be allocated between the motor generators, as based on the motors' required drive torque and vehicular speed and on each motor generator's characteristic in efficiency, to maximize the motor generators' total efficiency.

Abstract: A breather device provided on the outer peripheral section of a case of an in-wheel motor is located at a position above the rotation shaft of the in-wheel motor, between the in-wheel motor and a wheel. The position is inside the wheel in the width direction of a vehicle.

Abstract: A superconducting motor includes: a rotor that is rotatably supported; a stator that is provided around the rotor, and that is provided with a plurality of coils that are respectively formed of superconducting wires and that are wound at an inner periphery of a stator core; and a refrigerator having a cooling portion for cooling the plurality of coils. The cooling portion of the refrigerator is in contact with the plurality of coils.

Abstract: An electric motor has a field pole formed by a field current passing through a field winding. A voltage booting converter converts output voltage of a battery and outputs the voltage between a power source line and a grounding line. Field winding is electrically connected onto an electric current channel between battery and power source line and formed so that voltage switched by a switching element is applied to both ends. A controller controls the field current so as to adjust density of magnetic flux between a rotor and a stator by performing switching control on switching element and a switching element connected in parallel to field winding and converts the output voltage of battery into voltage in accordance with a voltage command value.

Abstract: An electric motor driving device that drives an electric motor including a field winding, a rotor and a stator, wherein the rotor and the stator each foam a field pole by passing a field current through the field winding, includes: a power supply device; a converter including a reactor that at least partially serves as the field winding shared with the electric motor, and configured to receive a voltage from the power supply device to carry out voltage conversion between first and second power lines and to pass the field current through the field winding during voltage conversion operation; an inverter configured to convert a direct-current power received from the converter to an alternating-current power for driving the electric motor; and a controller controlling the converter so that a current flows through the field winding in the same direction both during power running and regeneration of the electric motor.

Abstract: An in-wheel motor includes a rotating electric machine provided at a wheel and applying driving force to the wheel, a housing housing the rotating electric machine and rotatably supporting the wheel, and a vibration damping member provided between the housing and a ball joint as a mounting portion for mounting the housing on a vehicle body.

Abstract: A structure for controlling an engine is simplified in a power generation device equipped on a vehicle which generates power by a driving force of an engine. An operation unit (32) outputs to a controller (12) drive operation information based on an operation of a user. The controller (12) controls a vehicle driving circuit (28) and determines an engine output power target value based on the drive operation information and a running state of the vehicle. An engine output power/control voltage table stored in a storage unit (34) is referred to, and a value of a control voltage (Va) correlated to the engine output power target value is determined. The controller (12) controls a voltage adjusting circuit (24) such that the control voltage (Va) is set to the value determined based on the engine output power/control voltage table.

Abstract: A rotating electric motor includes a stator core, a rotational shaft capable of rotation, a field yoke allowing a flow of magnetic flux in an axial direction, first and second rotor cores fixedly installed on the rotational shaft, a first magnet fixedly installed between the first rotor core and the second rotor core, a first rotor teeth formed at the first rotor core, a second magnet provided alongside of the first rotor teeth in the circumferential direction of the first rotor core, a second rotor teeth formed at the outer surface of the second rotor core, protruding outwardly in the radial direction, a third magnet provided alongside of the second rotor core in the axial direction, and windings that can control the density of magnetic flux between at least one of the first rotor core and second rotor core and the stator core.

Abstract: A trans axle includes motor generators with central rotation axes of respective rotors arranged coaxially, a power split device arranged coaxially with the central rotation axis of a crank shaft and between motor generators, and a power control unit controlling the motor generators. The power control unit is arranged such that a reactor is positioned at least on one side and a smoothing capacitor is positioned on the other side of the central rotation axis of motor generator. The motor generators, the power split device and the power control unit are housed and integrated in a metal case, and fixed on a body of a vehicle (1000) by an engine mount.

Abstract: Right front wheel units (FL, FR) are driven independently by motor generators (MGL, MGR). A power control unit (1) is provided common to the motor generators (MGL, MGR) and integrally controls driving them. Each motor generator (MGL, MGR) and the power control unit (1) are selectively connected by switch circuits (SWL, SWR). The switch circuits (SWL, SWR) are switched by an ECU (3), as appropriate, in accordance with how the vehicle (100) is currently traveling (i.e., a driving force that the vehicle is required to output, and a direction in which the vehicle is traveling). In other words, the vehicle (100) can selectively implement traveling with the left and right front wheel units (FL, FR) both serving as driving wheel units, and traveling with only one of the left and right front wheel units (FL, FR) serving as a driving wheel unit, depending on how the vehicle is currently traveling.

Abstract: A breather device provided on the outer peripheral section of a case of an in-wheel motor is located at a position above the rotation shaft of the in-wheel motor, between the in-wheel motor and a wheel. The position is inside the wheel in the width direction of a vehicle.

Abstract: An electrically driven wheel includes a wheel disc and a wheel hub; an in-wheel motor mounted within the wheel disc to drive the wheel disc and the wheel hub or to be driven by the wheel disc and the wheel hub; a brake rotor and a brake caliper suppressing rotation of the wheel disc and the wheel hub while a vehicle is moving; and a parking lock mechanism provided in the in-wheel motor separately from a brake mechanism formed of the brake rotor and the brake caliper. The parking lock mechanism is a band-type brake frictionally engaging a planetary carrier serving as an “output portion” of a “reduction mechanism”.

Abstract: A battery is arranged outside a compartment. A service plug is arranged in the compartment. The service plug is a shutoff device that can shut off an output path of the battery by a manual operation. When a vehicle is hard hit at the front and a circuit of PCU is damaged, an excessive current may flow to the PCU, possibly generating heat or smoke from the PCU. When the vehicle goes wrong, a person on board the vehicle may pull out the service plug, whereby the power supply path from battery to PCU can be shut off.

Abstract: A drive device of a hybrid vehicle includes a motor generator and a motor generator arranged at the back of the motor generator, each rotor having a rotational center axis arranged on the same axis, a power split mechanism arranged on the same axis as a rotational center axis of a crankshaft and between the crankshaft and the motor generator, and a power control unit performing control of the motor generator. The power control unit includes a reactor arranged in a gap portion formed on one side with respect to the rotational center axis of the motor generator and between a lower side surface of the power element substrate, an outer circumferential side surface of the motor generator and an inner side surface of a case, and a capacitor arranged on the other side with respect to the rotational center axis of the motor generator.