Method, system and computer software code for trip optimization with train/track database augmentation

• US 8,768,543 B2
• Filed: 01/11/2007
• Issued: 07/01/2014
• Est. Priority Date: 03/20/2006
• Status: Active Grant

• Current Assignee: GE Global Sourcing LLC (Westinghouse Air Brake Technologies Corporation)
• Original Assignee: General Electric Company
• Inventors: Kumar, Ajith, Shaffer, Glenn Robert
• Primary Examiner(s): Tran, Khoi
• Assistant Examiner(s): Sample, Jonathan L
• Application Number:
  US11/622,136
• Publication Number:
  US 20070219682A1
• Time in Patent Office: 2,728 Days
• US Class Current: 701/19
• CPC Class Codes: B61L 15/0058 On-board optimisation of vehicle or vehicle train operation
• CPC Class Codes: B61L 27/16 Trackside optimisation of vehicle or train operation

Abstract

A system for providing at least one of train information and track characterization information for use in train performance, including a first element to determine a location of a train on a track segment and/or a time from a beginning of the trip. A track characterization element to provide track segment information, and a sensor for measuring an operating condition of at least one of the locomotives in the train are also included. A database is provided for storing track segment information and/or the operating condition of at least one of the locomotives. A processor is also included to correlate information from the first element, the track characterization element, the sensor, and/or the database, so that the database may be used for creating a trip plan that optimizes train performance in accordance with one or more operational criteria for the train.

Claims

1. A method comprising:

creating a first trip plan for a trip of a first rail vehicle along a track using first track segment information stored in a database, the first track segment information representative of one or more physical characteristics of the track to be traveled along during the trip, the first trip plan designating operational settings of the first rail vehicle in accordance with one or more operational criteria for the first rail vehicle in order to reduce at least one of emissions generated or fuel consumed by the first rail vehicle as the first rail vehicle travels along the track for the trip,

wherein the operational settings of the first trip plan include at least one of designated throttle settings, designated brake settings, or designated power settings for the first rail vehicle that are expressed as a function of at least one of time or distance along the track;

monitoring actual operating conditions of the first rail vehicle as the first rail vehicle moves along the track according to the first trip plan,

wherein the actual operating conditions of the first rail vehicle include at least one of actual throttle settings, actual brake settings, or actual power settings of the first rail vehicle;

using one or more processors, identifying a mismatch between the actual operating conditions of the first rail vehicle at one or more locations along the track and one or more expected operating conditions of the first rail vehicle at the one or more locations, the one or more expected operating conditions determined from the first track segment information used to create the first trip plan;

modifying the first track segment information stored in the database to updated track segment information responsive to the mismatch being identified, wherein the first track segment information is modified with information about the mismatch; and

creating one or more additional trip plans for at least one of the first rail vehicle or an additional rail vehicle to travel along the track using the updated track segment information.

2. The method of claim 1, wherein the first and one or more additional trip plans are created and revised using the one or more processors that are disposed onboard the first rail vehicle.

3. The method of claim 1, wherein the database that stores the first track segment information and the updated track segment information is disposed off-board the first rail vehicle and the one or more additional rail vehicles.

4. The method of claim 1, wherein the operational settings of the first and one or more additional trip plans include speeds for the first rail vehicle or the one or more additional rail vehicles expressed as a function of at least one of time or distance along the track.

5. The method of claim 1, wherein the actual operating conditions of the first rail vehicle include at least one of actual speeds or accelerations of the first rail vehicle.

6. A method comprising:

generating a first trip plan for a trip of a first vehicle to travel along a route using one or more processors, the first trip plan designating operational settings of the first vehicle expressed as a function of at least one of time or distance along the route, the first trip plan generated using one or more physical characteristics of the route stored in and obtained from a database,

wherein the operational settings of the first trip plan include at least one of designated throttle settings, designated brake settings, or designated power settings for the first vehicle that are expressed as a function of at least one of time or distance along the route;

comparing actual operating conditions of the first vehicle at one or more locations along the route with expected operating conditions of the first vehicle at the corresponding one or more locations to identify a mismatch between the actual operating conditions and the expected operating conditions using the one or more processors, the expected operating conditions determined from the one or more physical characteristics of the route that are used to generate the first trip plan,

wherein the actual operating conditions of the first vehicle include at least one of actual throttle settings, actual brake settings, or actual power settings of the first vehicle; and

revising at least one of the physical characteristics of the route that is stored in the database responsive to the mismatch that is identified using the one or more processors, wherein the at least one of the physical characteristics of the route are revised using information about the mismatch, wherein the at least one of the physical characteristics of the route is available for use to create one or more additional trip plans for at least one of the first vehicle or one or more additional vehicles.

7. The method of claim 6, wherein the database that stores the one or more physical characteristics of the route is disposed off-board of the first vehicle and the one or more additional vehicles.

8. The method of claim 6, wherein the one or more physical characteristics of the route that are used to generate the first trip plan and that are revised responsive to the mismatch being identified include altitude information of the route.

9. The method of claim 6, wherein the one or more physical characteristics of the route that are used to generate the first trip plan and that are revised responsive to the mismatch being identified include grade information of the route.

10. The method of claim 9, wherein the mismatch is identified by comparing an actual rate of change in speed of the first vehicle at a location along the route with an expected rate of change in the speed of the first vehicle at the location along the route, the expected rate of change in the speed calculated from the grade information of the route at the location.

11. The method of claim 9, wherein the mismatch is identified by comparing an actual inertia of the first vehicle at a location along the route with an expected inertia of the first vehicle at the location along the route, the expected inertia calculated from the grade information of the route at the location.

12. The method of claim 6, further comprising confirming the mismatch between the actual operating conditions and the expected operating conditions with additional operating conditions of one or more other vehicles traveling along the route according to one or more respective additional trip plans.

13. The method of claim 6, wherein the first vehicle is a rail vehicle and the route is a track.