Korea Advanced Institute of Science and Technology

Changwoo Lee

Jong Ho Kim

Kyung-Soo Kim

In Gwun Jang

Dongsuk Kum

InGwun Jang

Mingi Kim

Kitae Jang

Kyunghwan Choi

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

Disclosed is an apparatus and method for operating vehicular accessories during an engine stop using a one-way clutch pulley, the apparatus including the one-way clutch pulley configured to drive the vehicular accessories, and including a coupler and a one-way clutch. The one-way clutch pulley includes an engine crank shaft configured to connect to an engine of a vehicle; the coupler configured to couple with the engine crank shaft; the one-way clutch configured to couple with the coupler; and a pulley configured to connect to the one-way clutch, and the one-way clutch is configured to connect to the pulley and to rotate in one direction.

Apparatus and method for operating accessories of vehicle during engine stop using one-way clutch pulley

Growing community of inventors

Daejeon, South Korea

Changwoo Lee