Hyundai Motor Company

Kia Motors Corporation

Postech Academy-industry Foundation

Postech Research and Business Development Foundation

Kia Corporation

Pohang University of Science and Technology Foundation

Ept Co., Inc.

Knr System, Inc.

Kwang Hee Nam

Jiwoong Jang

Soon Woo Kwon

Tae Heon Kim

Joon Yong Lee

Ki Jong Lee

Sung Jin Kim

Ki Young Jang

Hee Kwang Lee

Seo Ho Choi

Hyun Seok Hong

Hong Seok Song

Doo Yong Oh

Sangcheol Shin

Kangho Jeong

Sang Moo Lee

Sung Yoon Jung

Tae Yeon Lee

Jin Seok Hong

Jun Ha Kim

Sang Hyun Moon

Jae Hak Kim

Bon Kil Koo

Myoung Han Kim

Sung Young Kim

The present invention relates to a rotor of motor, and more particularly, to a 2-segment quasi-Halbach rotor of motor that includes a radial magnet and a circumferential magnet which are Halbach-arrayed and a back iron providing a flux to reduce a thickness of the magnet and acquire high air-gap flux density.

2-segment quasi-Halbach rotor of motor

A method for determining a motor angle, may include deriving a sensor weight and a sensorless weight via a cross product of an actual current vector and a model-based sensored current vector and a cross product of the actual current vector and a model-based sensorless current vector; and determining a final motor angle by applying the sensor weight and the sensorless weight to each of a sensored angle and a sensorless angle.

Method for calculating motor angle

An electronic circuit module is provided. The electronic circuit module prevents damage by efficiently detecting an overcurrent in the electronic circuit module using an SiC MOSFET. The electronic circuit module includes an input unit that is configured to input a reference voltage and a switching unit that is configured to output a first voltage based on a current flow. A converter is configured to output a second voltage based on the first voltage and the reference voltage. An output unit is configured to compare a magnitude of the reference voltage with a magnitude of the second voltage to output a feedback signal when the second voltage is greater than the reference voltage.

Electronic circuit module and vehicle including the same

The present invention provides a position sensorless control method of a high performance permanent magnet synchronous motor during emergency operation, which can accurately detect a magnetic pole position of the synchronous motor based on a position sensorless vector control using an adaptive observer configured based on a permanent magnet synchronous motor model.

Sensorless control method of high performance permanent magnet synchronous motor during emergency operation

Disclosed is a method for controlling a voltage of a DC link for an electric vehicle, which can reduce a capacitance of the DC link interposed between an inverter and a DC/DC converter. The method for controlling the voltage of the DC link in a power system of a vehicle including a battery, a DC/DC converter, the DC link, an inverter, a motor, and a control part controlling the DC/DC converter and the inverter includes the steps of installing a compensator in a control loop of the control part such that a DC link current of the DC/DC converter follows a DC link current of the inverter, calculating a predetermined compensation term based on information of the motor inputted into the compensator, and applying the compensation term to a voltage node in the control loop of the control part in the compensator.

Method for controlling voltage of DC link for electric vehicle

A vector-controlled, dual inverter system for a three-phase induction motor is disclosed. The inverter system comprises a first inverter system which is connected to one end of three phase windings of a stator and performs compensation of a back electromotive force; and a second inverter system which is connected to the other end of the three windings of the stator and performs reactive power compensation.

Vector-controlled dual inverter system and method for induction motor

Growing community of inventors

Gyeongsangbuk-do, South Korea

Kwang Hee Nam