公开(公告)号：US20150231989A1

公开(公告)日：2015-08-20

申请号：US14433544

申请日：2013-08-09

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Byung Song Lee ,  Hyung Woo Lee ,  Chan Bae Park ,  Soon Man Hong ,  Jun Ho Lee ,  Jae Hee Kim

IPC: B60L13/03

CPC classification number: B60L13/03 ,  B60L2200/26 ,  H02K41/031 ,  H02P25/06 ,  H02P25/064

Abstract: The present invention relates to a two-phase, two-column linear pulse motor propulsion system, and more particularly to a two-phase, two-column linear pulse motor propulsion system which can implement high-speed driving, stopping, and switching directions forward/backward through non-adhesive driving characteristics by improving accelerating performance and torque performance.The two-phase, two-column linear pulse motor propulsion system comprises a field unit 121, 122 prepared in two columns in the longitudinal direction under a moving body 110 so as to generate a magnetic field; an armature unit 131, 132 which is prepared on a travelling track, generates a shifting field by the power supplied from a power conversion device, is prepared in two columns so as to correspond to the two-column field unit 121, 122 and generates the propulsion force of the moving body 110 through interaction due to a two-phase synchronous signal. Thus, it can improve propulsion force and acceleration/deceleration performance, compared to a linear propulsion system with one phase.

Abstract translation: 本发明涉及一种两相双列线性脉冲电机推进系统，更具体地涉及一种可实现高速行驶，停止和切换方向的两相双列线性脉冲电机推进系统 通过提高加速性能和转矩性能，通过非粘性驱动特性落后。 两相双列线性脉冲电动机推进系统包括在移动体110的下方沿长度方向准备成两列的场单元121,122，以产生磁场; 在行驶轨道上准备的电枢单元131,132由从电力变换装置供给的电力产生变速场，以两列的方式准备，以对应于双列场单元121,122，并产生 由于两相同步信号的相互作用，移动体110的推进力。 因此，与具有一相的线性推进系统相比，可以提高推进力和加速/减速性能。

公开(公告)号：US10084565B1

公开(公告)日：2018-09-25

申请号：US15797454

申请日：2017-10-30

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Jung Tai Kim ,  Chi Hyung Ahn ,  Jae Hee Kim ,  Seh Chan Oh ,  Kyeong Jun Ko ,  Sung Soo Park ,  Jae Ho Lee ,  Sang Hoon Chang

IPC: H04B1/18 ,  H04K3/00

CPC classification number: H04K3/22 ,  B61L3/125 ,  B61L15/0027 ,  H04K3/222 ,  H04K3/224 ,  H04K3/226 ,  H04K3/62 ,  H04K3/88 ,  H04K2203/16 ,  H04K2203/22 ,  H04K2203/32 ,  H04K2203/36

Abstract: An apparatus and method for protecting a communication device of a railroad car is provided. The apparatus includes an antenna portion configured to include main antennas and an auxiliary antenna, a main receiver configured to check a magnitude of a received signal transferred through the main antennas of the antenna portion, an auxiliary receiver configured to check a magnitude of a received signal transferred through the auxiliary antenna of the antenna portion, and a controller configured to compare the magnitude of the signal received by the main receiver and the magnitude of the signal received by the auxiliary receiver, determine whether there is a jamming signal according to a comparison result, and take a preset countermeasure when it is determined that there is a jamming signal.