Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Ulsan National Institute of Science and Technology

Woong Chan Chae

Jung Shik Kim

Sang Hoon Moon

Young Jin Shin

Jong Hoon Lee

Hyoungjun Cho

Sanghoon Moon

Kyoungbum Kim

Byung Kwan Son

Yeonho Kim

Myunggyu Kim

Hyun Su Kim

Ki Nam Kim

Hyoung Jun Cho

Jinhun Lee

Young Gon Ryu

Ki Jin Han

In a driving system, first and second inverters are connected to a driving motor, one end of a stator winding through which 3-phase current flows is connected to an output line of the first inverter, and the other end of the stator winding is connected to an output line of the second inverter. A winding pattern of the driving motor includes: coils wound in slots defined in the stator and to which 3-phase current is applied; coils wound on innermost and outermost sides based on a direction toward a rotating shaft of the driving motor in the slots, and being energized by different AC phases; and coils disposed between a first coil located on the outermost side and a second coil located on the innermost side, and being energized by the same AC phases as those of the first and second coils.

Winding pattern of a motor and a motor driving system

A motor winding pattern is provided. In a driving system in which a first inverter and a second inverter are connected to a drive motor, and one end of a stator winding through which a three phase currents flow is connected to an output line of the first inverter, and the other end of the stator winding is connected to an output line of the second inverter, coils to which three phase currents are applied are wound on slots defined in a stator of the drive motor, and coils to which alternating current phases different from each other are applied are wound inside and outside each of all the slots defined in the stator on the basis of direction toward a rotation axis of the drive motor.

Motor winding pattern and motor driving system

A method of extracting impedance parameters of a three-phase motor utilizes a five-terminal network including first to third winding wires and opposite shaft ends. The method includes connecting two terminals, selected from among the winding wires and the shaft ends, to input and output terminals in order to measure voltage and current of the terminals and to extract input impedance parameters of the five-terminal network, extracting conversion parameters including voltage and current transfer matrices in a common mode, in which the winding wires are commonly connected to the input and output terminals, and in a differential mode, in which the winding wires are differentially connected to the input and output terminals, and calculating impedance parameters in a mixed mode, in which transfer impedance components for the shaft ends in the common mode and the differential mode are mixed, using the extracted input impedance parameters and conversion parameters.

Apparatus and method for extracting impedance parameters of three-phase motor

A rotor fixing unit for a drive motor serves which fixes a rotor core to a shaft is provided. In particular, a plurality of keyway portions, which includes first keyways formed in an axial direction of the shaft, and second keyways connected to the first keyways in a rotation direction, are formed in an outer circumferential surface of the shaft. Additionally, a plurality of key protrusions, which are each coupled to each of the keyway portions, respectively, are formed on an inner circumferential surface of the rotor core, and fixing members for fixing the shaft and the rotor core are then inserted into the first keyways to fix the key protrusions in the second keyways.

Rotor fixing unit for drive motor

A rotor of an interior permanent magnet motor includes a rotor core configured to form a body of the rotor. An upper permanent magnet group is configured to be inserted into the rotor core to form a magnetic pole. A lower permanent magnet group is configured to be inserted into the rotor core below the upper permanent magnet group to form a two-layered structure with the upper permanent magnet group. Each of the upper and lower permanent magnet groups may include two V-shaped permanent magnets. A polar arc angle formed by the two permanent magnets of the upper permanent magnet group may be different from a polar arc angle formed by the permanent magnets of the lower permanent magnet group.

Rotor of interior permanent magnet motor

Growing community of inventors

Gyeonggi-do, South Korea

Woong Chan Chae