公开(公告)号：US09718485B2

公开(公告)日：2017-08-01

申请号：US14837918

申请日：2015-08-27

Applicant: LSIS CO., LTD.

Inventor： Jongchul Jung ,  Yong Gee Cho

IPC: B61L25/02 ,  B61K9/02 ,  B61L27/00 ,  B61L3/00 ,  B61L15/00

CPC classification number: B61K9/02 ,  B61L3/006 ,  B61L3/008 ,  B61L15/0072 ,  B61L25/021 ,  B61L25/025 ,  B61L27/0038 ,  B61L2201/00

Abstract: The present disclosure relates to an apparatus for warning of exceeding speed limit in railway vehicles, wherein a train speed is estimated after a predetermined time, a remaining time is calculated until a train reaches a speed limit based on the estimated speed, and when the calculated time is smaller than a preset reference value, a warning signal is generated. Thus, an adequate warning can be given to cater to a train operation situation because a TTSLC indicator is used that notifies when an emergency braking will be activated by exceeding a set speed limit value after a certain time lapses, resultantly increasing the train operation frequency and the availability of trains.

公开(公告)号：US09809235B2

公开(公告)日：2017-11-07

申请号：US14834301

申请日：2015-08-24

Applicant: LSIS CO., LTD.

Inventor： Jongchul Jung ,  Yong Gee Cho

IPC: B61L25/00 ,  B61L27/04 ,  B61L25/02 ,  B61L27/00

CPC classification number: B61L27/04 ,  B61L25/021 ,  B61L25/025 ,  B61L27/0038 ,  B61L27/0094

Abstract: The present disclosure relates to an automatic train operation system in railway vehicles, the system including: a speed profile generation unit configured to generate speed profile information based on limited speed profile inputted from outside; a track database stored with track gradient information and track curvature information for each track segment; a train speed controller configured to control a speed of the train using a current position, a current speed and the speed profile information of the train inputted from outside; and a propulsion system fault diagnosis unit configured to diagnose a fault status of the propulsion system based on the current speed of the train, the track gradient information, the track curvature information and propulsion notch information inputted from the train speed controller, and to calculate a performance depreciation ratio when the propulsion system is faulted and to provide the performance depreciation ratio to the train speed controller.

公开(公告)号：US09637148B2

公开(公告)日：2017-05-02

申请号：US14601024

申请日：2015-01-20

Applicant: LSIS CO., LTD.

Inventor： Jongchul Jung ,  Yong Gee Cho

IPC: G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B61L23/04 ,  B61L15/00 ,  B61F9/00

CPC classification number: B61L23/047 ,  B61F9/005 ,  B61L15/0081

Abstract: The present disclosure relates to an apparatus and a method for estimating a lateral force applied to a bogie due to contact between a wheel and a rail when a railroad vehicle drives in a curved section, the apparatus including: a lateral velocity estimation observer configured to calculate a lateral velocity estimate by estimating a lateral velocity based on a vertical acceleration, a lateral acceleration, a yaw velocity, and a wheel angular velocity of the railroad vehicle; and a lateral force estimation observer configured to calculate a lateral force estimate, by estimating a lateral force applied to a bogie of the railroad vehicle based on a steering angle of the railroad vehicle, a vertical force applied to the railroad vehicle, and a lateral velocity estimate calculated by the lateral velocity estimation observer.

公开(公告)号：US09517780B2

公开(公告)日：2016-12-13

申请号：US14538109

申请日：2014-11-11

Applicant: LSIS CO., LTD.

Inventor： Jongchul Jung ,  Yong Gee Cho

IPC: B61C17/12 ,  B61L27/00 ,  B61L3/00 ,  B61L25/02

CPC classification number: B61C17/12 ,  B61L3/008 ,  B61L25/021 ,  B61L25/025 ,  B61L27/00

Abstract: An apparatus for controlling speed in railway vehicles is disclosed, the apparatus estimates a future train speed and determines a control input (first speed control) configured to control a train speed based on a TTSLC {Time-To-Speed-Limit Crossing, a time taken by a train from a current time to exceed an ATP (Automatic Train Protection) speed profile, which is an ATP speed limit}, and determines a control input (second speed control) configured to control the train speed based on a difference between the ATP speed profile and an actual train speed, whereby the first speed control or the second speed control is selected in response to the TTSLC and outputted to the train.

Abstract translation: 公开了一种用于控制铁路车辆速度的装置，该装置估计未来的列车速度并且确定被配置为基于TTSLC（时间到速度极限交叉，时间到时间）控制列车速度的控制输入（第一速度控制） 由当前时间乘坐的火车超过作为ATP速度限制的ATP（Automatic Train Protection）速度曲线，并且确定被配置为基于所述ATP速度限制的差异来控制列车速度的控制输入（第二速度控制） ATP速度曲线和实际列车速度，由此响应于TTSLC选择第一速度控制或第二速度控制并输出到列车。