The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 13, 2016

Filed:

Nov. 11, 2014
Applicant:

Lsis Co., Ltd., Anyang-si, Gyeonggi-do, KR;

Inventors:

Jongchul Jung, Seoul, KR;

Yong Gee Cho, Seoul, KR;

Assignee:

LSIS CO., LTD., Anyang-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61C 17/12 (2006.01); B61L 27/00 (2006.01); B61L 3/00 (2006.01); B61L 25/02 (2006.01);
U.S. Cl.
CPC ...
B61C 17/12 (2013.01); B61L 3/008 (2013.01); B61L 27/00 (2013.01); B61L 25/021 (2013.01); B61L 25/025 (2013.01);
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.


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