Global Patent Index - EP 1086874 A1

EP 1086874 A1 2001-03-28 - Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch

Title (en)

Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch

Title (de)

Zugsteuerungsverfahren und -Vorrichtung durch Richtungsbestimmung eines Zuges durch eine Eisenbahnweiche

Title (fr)

Procédé et dispositif de commande de train par détermination de la direction du train à travers une aiguille de chemin de fer

Publication

EP 1086874 A1 (EN)

Application

EP 99118757 A

Priority

EP 99118757 A

Abstract (en)

An apparatus for determining the presence of a third rail disposed between parallel railroad tracks as a train progresses along said parallel railroad tracks and further for determining the relative direction of motion of said third rail with respect to said first two rails and further for determining the rate at which the third rail moves with respect to the first rails is disclosed, which is a low power radar sensor disposed underneath the rail vehicle and directed toward the rail on the opposing side of the vehicle. In a preferred embodiment, two rail detectors are shown which are disposed on opposite sides of the rail vehicle. The radar detectors are coupled with an onboard computing device and with other components of an advanced train control system which can be used for precisely locating the train on closely spaced parallel tracks and further for updating and augmenting position information used by the advanced train control system. The system including GPS receivers and wheel tachometers for providing alternate sources of information for position determination. <IMAGE>

IPC 1-7 (main, further and additional classification)

B61L 3/06

IPC 8 full level (invention and additional information)

B61L 3/06 (2006.01)

CPC (invention and additional information)

B61L 25/026 (2013.01); B61L 3/06 (2013.01); B61L 2205/04 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1086874 A1 20010328

INPADOC legal status


2003-10-08 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030401

2001-12-19 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB IT

2001-11-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010921

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT

2001-03-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI