公开(公告)号：US10457306B2

公开(公告)日：2019-10-29

申请号：US15527709

申请日：2015-12-22

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Bong Kwan Cho ,  Kee Jun Park

IPC: B61L27/04 ,  B61B1/02 ,  B61B1/00 ,  G06K9/00 ,  B61L23/04 ,  B61L27/00 ,  B61L25/02 ,  H04N5/247

Abstract: The present invention relates to a system, server, and method for automatically calculating a platform dwell time of a train. The system includes a passenger detection device configured to determine the number of passengers who board or deboard a train entering a station; an operation control server configured to calculate an appropriate dwell time of the train by using the number of passengers, which is received from the passenger detection device; and an ATO device configured to control a dwell time of the train by using the appropriate dwell time, which is received from the operation control server.

公开(公告)号：US10125833B2

公开(公告)日：2018-11-13

申请号：US14647406

申请日：2013-08-06

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Dong Hoon Kang

IPC: F16D65/12 ,  B61H5/00 ,  F16D65/02

Abstract: Provided is a high heat resistant brake disk for a railroad vehicle, which is manufactured using a nano material having high heat conductivity, such as a carbon nanotube (CNT) or graphene, to improve heat resistance of an overheated portion of the brake disk, and which can extend a life of the brake disk by suppressing performance deterioration due to a thermal shock. The high heat resistant brake disk includes a hub inserted into an axle of the railroad vehicle and an outer circumference coupled to a vehicle wheel to coaxially rotate with the vehicle wheel, wherein at least one pattern unit made from a high heat resistant nano material is formed on one surface of the brake disk.

公开(公告)号：US20180291570A1

公开(公告)日：2018-10-11

申请号：US15570726

申请日：2015-10-26

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Kyoung Chan Lee ,  In Ho Yeo ,  Sung Il Kim ,  Seung Yup Jang ,  Hyun-Min Kim ,  Ki Hyun Kim ,  Hyang Wook Ma ,  Young Hak Kwak ,  Yoon Bong Shin ,  In Gyu Kim ,  Young Jin Kim

IPC: E01D21/06 ,  E01D6/00 ,  E01D19/12

CPC classification number: E01D21/06 ,  E01D6/00 ,  E01D19/125 ,  E01D21/065 ,  E01D2101/268

Abstract: The present invention relates to a method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.

公开(公告)号：US09789859B2

公开(公告)日：2017-10-17

申请号：US14895871

申请日：2014-11-19

Applicant: Korea Railroad Research Institute

Inventor： Jung Tai Kim ,  Jai Sung Hong ,  Kyeong Jun Ko ,  Moo Sun Kim

IPC: G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B60T8/17 ,  B61H13/00 ,  B60T13/66 ,  B60T17/22 ,  B60T7/12 ,  B60T13/74

CPC classification number: B60T8/1705 ,  B60T13/665 ,  B60T17/228 ,  B61H13/00

Abstract: Disclosed are a railway vehicle braking system and method. The railway vehicle braking system includes a braking command generating unit generating a braking command to stop a railway vehicle, a comparison unit determining whether the braking command has been changed, a delay unit delaying and outputting the braking command depending upon a determination result from the comparison unit, and a digital-to-analog converter converting the braking command, which has been delayed by the delay unit, into an analog signal and inputting the analog signal to an actuator.

公开(公告)号：US20170057365A1

公开(公告)日：2017-03-02

申请号：US15051483

申请日：2016-02-23

Applicant: Korea Railroad Research Institute

Inventor： In Ho Cho ,  Shin Myung Jung ,  Yong Jang Kwon ,  Byung Song Lee

IPC: B60L11/18 ,  B64F1/36 ,  G01S19/13 ,  B64C39/02

CPC classification number: B60L11/182 ,  B60L11/1827 ,  B60L11/1829 ,  B60L11/1833 ,  B60L2200/16 ,  B60L2240/622 ,  B64C39/024 ,  B64C2201/042 ,  B64C2201/066 ,  B64C2201/145 ,  B64F1/36 ,  G01S19/13 ,  G01S19/14 ,  H02J7/025 ,  H02J50/10 ,  H02J50/90

Abstract: A charging apparatus for unmanned aerial vehicles and a charging method thereof. The charging apparatus includes: a transmit coil provided to a charging station and generating a magnetic field; a reception coil generating induced electromotive force according to variation of magnetic flux of the transmit coil; a reception coil adjuster adjusting at least one of an inclination and an orientation of the reception coil; and a controller controlling at least one of the inclination and the orientation of the reception coil by controlling the reception coil adjuster according to magnitude of the induced electromotive force generated in the reception coil by the magnetic field generated in the transmit coil.

Abstract translation: 一种用于无人机的充电装置及其充电方法。 充电装置包括：发送线圈，其设置在充电站并产生磁场; 接收线圈，根据发射线圈的磁通量的变化产生感应电动势; 接收线圈调节器，其调整所述接收线圈的倾斜度和取向中的至少一个; 以及控制器，通过根据在发送线圈中产生的磁场，在接收线圈中产生的感应电动势的大小控制接收线圈调节器来控制接收线圈的倾斜度和取向中的至少一个。

公开(公告)号：US20150110561A1

公开(公告)日：2015-04-23

申请号：US14516684

申请日：2014-10-17

Applicant: Korea Railroad Research Institute

Inventor： Dong Hyeon Kim

IPC: E21F1/00

CPC classification number: E21F1/003 ,  B61B13/10 ,  E21D9/14

Abstract: A structure for reducing a tunnel micro pressure wave is provided. The structure includes a hood structure formed in front of an entry of a railroad tunnel; and an air pipe section in which at least one air pipe is provided along the circumference of the hood structure, wherein the air pipe comprises a horizontal introduction section formed to be extended from an internal side of the hood structure toward a longitudinal direction of the hood structure, an outlet section formed on an external side of the hood structure, and an intermediate section connecting the horizontal introduction section and the outlet section through each other.

Abstract translation: 提供了一种用于减小隧道微压力波的结构。 该结构包括形成在铁路隧道入口前面的罩结构; 以及空气管部，其中沿着所述罩结构的圆周设置有至少一个空气管，其中所述空气管包括水平导入部，所述水平导入部形成为从所述罩结构的内侧朝向所述罩的纵向延伸 结构，形成在发动机罩结构的外侧的出口部以及将水平引入部和出口部彼此连接的中间部。

公开(公告)号：US20150102652A1

公开(公告)日：2015-04-16

申请号：US14497561

申请日：2014-09-26

Applicant: Korea Railroad Research Institute

Inventor： Dong Hyeon Kim

IPC: E21C37/06 ,  E21C37/02 ,  E21C37/00

CPC classification number: E21C37/06 ,  E21C37/08

Abstract: A cartridge for tunnel blasting is provided a cartridge for tunnel blasting, which easily breaks a rock, by inserting a cartridge containing water into a bore hole formed in a rock by using a boring device, and injecting liquid nitrogen into the inserted cartridge, so as to induce cracks of the rock by using the characteristic of the water that expands when it is frozen.

Abstract translation: 用于隧道爆破的筒用于隧道爆破，通过使用钻孔装置将含有水的孔插入形成在岩石中的钻孔中并将氮气注入到插入的盒中，从而容易地破碎岩石，从而 通过使用冷冻时膨胀的水的特征来引起岩石裂缝。

公开(公告)号：US20250162626A1

公开(公告)日：2025-05-22

申请号：US18919623

申请日：2024-10-18

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Hyun Moo HUR ,  Jung Won Seo ,  Kyung Ho Moon

IPC: B61L27/04 ,  B61L25/02

Abstract: Provided are a system and method for estimating a track curvature for active steering control of railcars which are configured to estimate a front-back-direction relative angle between a front bogie and a rear bogie of a lead car from a relative displacement measured by displacement sensors, which are installed on the front and rear bogies of two cars to measure a displacement between the front and rear bogies, calculate an estimated value of a track curvature radius R using an equation R = 2 ⁢ Lx Δ , calculate a travel distance of the lead car on the basis of speed data measured by a speed sensor, which measures a travel speed of the lead car, to specify the location of a following car in accordance with a car length, and then map the estimated track curvature radius value data to the following car location to transmit estimated track curvature radius value data to an active steering control unit of the following car.

公开(公告)号：US20250156593A1

公开(公告)日：2025-05-15

申请号：US18926977

申请日：2024-10-25

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Jae Won KIM ,  Hwan Hee CHO ,  Min Sup SONG ,  Han Min LEE ,  Ho Sung JUNG

IPC: G06F30/13 ,  H02J1/00 ,  H02M3/335

Abstract: A simulation system of a railway system for a Medium-Voltage Direct Current (MVDC) distribution network includes: a computing device which stores a simulation program including a converter station model configured to simulate a converter station included in the MVDC distribution network and a train operation model configured to simulate an operation state of a train that is supplied with power from the converter station and runs; a converter controller which controls a DC/DC converter included in the converter station model; and a Hardware In the Loop Simulation (HILS) device which performs a simulation based on the converter station model, the train operation model, and the converter controller. Herein, the converter station model and the train operation model are executed in software by the HILS device, and the converter controller is connected to the HILS device and driven to control the converter station model.

公开(公告)号：US12233830B2

公开(公告)日：2025-02-25

申请号：US17935748

申请日：2022-09-27

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Yeon Su Kim ,  Sung Hyuk Park

IPC: B60T17/22 ,  B60T8/88 ,  B61L15/00 ,  F16D66/00

Abstract: A brake caliper diagnostic device for railway vehicles according to an embodiment of the present disclosure includes an internal pressure sensor located between a brake hose for delivering brake oil or compressed air to the brake caliper and an inlet of the brake caliper, internal temperature sensors respectively installed in the air breathers respectively located above and below the brake caliper, an assembly plate temperature sensor located adjacent to a brake pad assembly, a piston temperature sensor located on a surface of a brake caliper body adjacent to a piston, and a brake caliper monitoring device configured to determine whether or not the brake caliper is abnormal, based on data received from the internal pressure sensor, the internal temperature sensors, the assembly plate temperature sensor, and the piston temperature sensor.