Method of forecasting train speed

• US 7,447,571 B2
• Filed: 04/24/2006
• Issued: 11/04/2008
• Est. Priority Date: 04/24/2006
• Status: Active Grant

• Current Assignee: New York Air Brake Corporation (Knorr-Bremse GmbH)
• Original Assignee: New York Air Brake Corporation (Knorr-Bremse GmbH)
• Inventors: Nickles, Stephen K., Haley, John E.
• Primary Examiner(s): To; Tuan C
• Application Number:
  US11/408,973
• Publication Number:
  US 20070250225A1
• Time in Patent Office: 925 Days
• Field of Search: 701/20, 701/19, 246/187.R, 246/167.R, 246/122.R, 246/182.R, 246/182.A, 342/450
• US Class Current: 701/20
• CPC Class Codes: B61L 15/0058 On-board optimisation of vehicle or vehicle train operation
• CPC Class Codes: B61L 15/0062 On-board target speed calculation or supervision
• CPC Class Codes: B61L 2205/04 Satellite based navigation systems, e.g. global positioning system [GPS]
• CPC Class Codes: B61L 25/021 Measuring and recording of train speed
• CPC Class Codes: B61L 25/025 Absolute localisation, e.g. providing geodetic coordinates
• CPC Class Codes: B61L 27/20 Trackside control of safe travel of vehicle or train, e.g. braking curve calculation

Abstract

A method of speed forecasting a train over a track including determining location of the train on the track, the speed of the train and brake and throttle setting of the train. Speeds and suggested throttle and brake settings for spaced points along the track are calculated based on the determinations. The calculated speeds and throttle and brake setting are displayed for the spaced points along the track.

Claims

1. A method of speed forecasting a train over a track, the method comprising:

determining location of the train on the track, the present speed of the train, and brake and throttle setting of the train;

calculating forecasted speeds at spaced points along the track based on the present train speed and location;

calculating suggested brake and throttle settings at spaced points along the track based on the present location, speed and brake and throttle settings and forecasted speeds at the spaced points; and

simultaneously displaying the track and forecasted speeds at the spaced points along the track.

2. The method according to claim 1, including determining speed limits at the spaced points and determining and simultaneously displaying forecasted speeds which exceed the speed limits.

3. The method according to claim 1, wherein the brake and throttle settings include pneumatic braking, electropneumatic braking, dynamic braking and propulsion.

4. The method according to claim 1, wherein the suggested brake and throttle settings are simultaneously displayed with the track and forecasted speeds at the spaced points along the track.

5. The method according to claim 4, wherein calculating and displaying the suggested brake and throttle settings at spaced points along the track is performed if one or more forecasted speeds exceed determined speed limits at the spaced points along the track.

6. The method according to claim 4, including determining changes of brake and throttle settings after display of the suggested setting and repeating the method.

7. The method according to claim 4, including determining if changes have been made of brake and throttle settings after display of suggested brake and throttle settings and if not, automatically changing the brake and throttle settings to the suggested brake and throttle settings.

8. A method of speed forecasting a train over a track, the method comprising:

determining location of the train on the track, the present speed of the train, and brake and throttle setting of the train;

calculating forecasted speeds at spaced points along the track based on the present train speed and location;

calculating suggested brake and throttle settings at spaced points along the track based on the present location, speed and brake and throttle settings and forecasted speeds at the spaced points;

simultaneously displaying the track and forecasted speeds,

determining speed limits at the spaced points and determining and simultaneously displaying forecasted speeds which exceed the speed limits,

wherein the forecasted speeds which exceed the speed limits are displayed at the spaced points along a display of the track in a manner distinctive from the forecasted speeds displayed at the spaced points along the display of the track which do not exceed the speed limits.

9. The method according to claim 8, wherein the forecasted speeds which exceed the speed limits are displayed as one of red and flashing.