Korea Advanced Institute of Science and Technology

In Gwun Jang

Soo Hyun Kim

Kyung Soo Kim

Kyung-Soo Kim

Sang Jun Yoo

Jung Jin Kim

Mingi Kim

Byung Man Kwak

Seung Beop Lee

Changwoo Lee

Kyung Hwan Choi

Eun Ho Kim

Yunsub Jung

Youn Sik Park

Hanjong Ju

Minseok Kang

Kyung Woon Kwak

Yun Sic Hong

Doo Yeol Koh

Yoon Keun Kwak

Kyung Ii Kim

Kyong-Soo Kim

The present disclosure proposes a method and device for optimally designing the topology of a permanent magnet insertion type electric motor by considering maximum torque control performance per ampere and field-weakening control performance. According to the present disclosure, for a topology optimization-based design of an electric motor including a stator and a rotor and having a permanent magnet inserted into the rotor, a computer device is configured to calculate an optimal current control condition for the stator according to a structure of the rotor and to derive a topology optimization-based design of the rotor by applying the optimal current control condition.

Method and device for optimally designing topology of permanent magnet-inserted electric motors by considering maximum-torque-per-ampere control performance and field-weakening control performance

The embodiments relate to a real-time approximation method and apparatus of a mutual inductance between transmitters and receivers for determining an optimal operating condition in a multiple-receiver wireless power transfer system, and it may be configured to approximate a mutual inductance in the multiple-receiver wireless power transfer system according to a configuration status of the receivers, and determine an operating condition of the multiple-receiver wireless power transfer system based on the mutual inductance. According to the various example embodiments, the inductance may comprise a mutual inductance between the transmitter and the receivers, and a mutual inductance between the receivers.

Real-time approximation method and apparatus of mutual inductance between transmitters and receivers for determining optimal operating condition in multiple-receiver wireless power transfer systems

A power control method and apparatus in consideration of a driving environment of a hybrid vehicle is provided. The method and apparatus for controlling a power of a hybrid vehicle enable real-time application while having adaptability to various driving environment. For a hybrid vehicle, the power control method and apparatus provide optimum fuel efficiency performance in any driving environment through power control considering the current driving environment in real time.

Method and apparatus for controlling power of hybrid vehicle considering driving environment

Disclosed is a method for optimizing a layout of a secondary coil for a wireless power transfer. The method includes reconstructing a secondary coil based on a fixed grid, corresponding to a design domain, to set a relative turn of each fixed grid and obtaining at least one or more of an electromagnetic measure and a physical measure of the secondary coil to optimize a layout of the secondary coil; applying an effective turn to the optimized layout of the secondary coil to perform post-processing; and deriving a layout of a physical coil about the secondary coil. The effective turn corresponds to a difference between the relative turns existing at a same position.

Method and system for layout optimization of secondary coil for wireless power transfer

An apparatus and method for reconstructing a skeletal image for osteoporotic diagnosis is disclosed. A skeletal image reconstruction method may include separating a region of interest (ROI) corresponding to a skeletal system from an image captured from an inspection target, and reconstructing a high-resolution skeletal image by performing a finite element method (FEM) and topology optimization on the ROI.

Apparatus and method for reconstructing skeletal image

A crane for loading and unloading a cargo includes multi-stage trolley. The multi-stage trolley for a crane includes a first trolley movable in a longitudinal direction along a boom of the crane; a second trolley movable in a lateral direction on the first trolley; a hoisting wire provided in the longitudinal direction along the boom; a spreader connected to the hoisting wire through the first trolley and the second trolley and supported by the hoisting wire, the spreader being movable in a vertical direction according to a movement of the hoisting wire. The multi-stage trolley further includes a sheave block unit for changing a direction of the hoisting wire to maintain a vertical level of the spreader constant when the first trolley and/or the second trolley is moved.

Multi-stage trolley for a crane and a crane therewith

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Daejeon, South Korea

In Gwun Jang