Back to results
US 10,308,264 B2Granted
System for controlling speed of railway vehicles by considering braking characteristic
AssigneeLsis Co., Ltd.
InventorsJong-Chul Jung, Yong-Gee Cho
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a speed control system of a railway vehicle in consideration of a braking characteristic, and more particularly, to a speed control system of a railway vehicle in consideration of a braking characteristic, which calculates in real time a time-to-target-speed-crossing (TTTSC) that is a time required for a speed of a train to exceed a speed of an automatic train operation (ATO) profile through a future speed estimation of the train, and controls the speed of the train to be interlocked with the TTTSC.
Claims5
A speed control system of a train, comprising:
- a speed control unit;
- and
- a braking control unit,
- wherein the braking control unit includes:
- a future speed estimation unit configured to estimate a future speed of the train using track data and train data;
- a time-to-target-speed-crossing (TTTSC) calculation unit configured to calculate a TTTSC using the future speed of the train, which is estimated from the future speed;
- and
- a brake output determination unit configured to determine a brake output determination signal through a comparison between the TTTSC and a braking characteristic value of the train and transmit the brake output determination signal to the speed control unit to apply a braking output to the train,
- wherein the TTTSC is a remaining time until when a speed of the train is the same as that of an automatic train operation (ATO) profile, and
- wherein the braking characteristic value is set to minimize a response delay according to a free running time due to a braking characteristic.
7 more elements
Dependencies are inferred from the claim text.