System and method for automated locomotive startup and shutdown recommendations

• US 8,914,168 B2
• Filed: 08/14/2012
• Issued: 12/16/2014
• Est. Priority Date: 04/05/2012
• Status: Active Grant

• Current Assignee: Union Pacific Railroad Company (Union Pacific Corporation)
• Original Assignee: Union Pacific Railroad Company (Union Pacific Corporation)
• Inventors: Chundru, Srinivas, Student, Patrick J., Prince, Tim L., Buchheit, Allen H.
• Primary Examiner(s): Cheung, Calvin
• Assistant Examiner(s): SHUDY, ANGELINA M
• Application Number:
  US13/585,535
• Publication Number:
  US 20130268147A1
• Time in Patent Office: 854 Days
• Field of Search: 701/19, 701/20, 246/186, 246/187
• US Class Current: 701/19
• CPC Class Codes: B61C 17/12 Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units control from points outside the train B61L3/00; fluid-actuated telemotors, servomotors F15B; control devices in general G05
• CPC Class Codes: B61L 15/0027 Radio-based, e.g. using GSM-R
• CPC Class Codes: B61L 15/0036 Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
• CPC Class Codes: B61L 15/0058 On-board optimisation of vehicle or vehicle train operation
• CPC Class Codes: B61L 3/127 for remote control of locomotives remote control of locomotives within a train consist B61C17/12
• CPC Class Codes: B61L 3/14 to cut-off the power supply to traction motors of electrically-propelled vehicles

Abstract

Data representative of a train consist (the train consist comprising a plurality of locomotives and a plurality of cars) and data representative of a route for the train consist can be processed by a processor to automatically determine which locomotives in the train consist should be powered on and which locomotives in the train consist should be shut down for each segment of the route. The processor can make these determinations based on an analysis of the train consist data and the route data with respect to a plurality of considerations that affect train efficiency. Recommendations for locomotive startups and shutdowns in accordance with such automated determinations can then be presented to the train crew for the crew to use during train operations. It is believed that when train crews are in compliance with such recommendations, significant improvements in efficiency, particularly with respect to fuel consumption, can be achieved.

Claims

1. A method comprising:

processing, by a processor, train consist data and route data for a train consist by applying a plurality of rules using the train consist data and the route data, wherein the train consist comprises a locomotive consist, the locomotive consist comprising a lead locomotive and a rearmost locomotive,

wherein the rules comprise a territory rule that is configured to prevent a shut down recommendation of the rearmost locomotive in a predefined territory as determined from the route data,

wherein the processing step further includes applying the territory rule by;

determining territory data for a route segment based on the route data;

determining whether the territory data corresponds to the predefined territory, the predefined territory being indicative of a particular territory where safety braking considerations apply; and

in response to a positive determination that the territory data corresponds to the predefined territory, preventing the rearmost locomotive from being recommended for a shut down; and

in response to the processing, automatically generating, by the processor, a recommendation that is indicative of how many and which locomotives of the train consist should be powered on or shut down for the route segment.

2. The method of claim 1 wherein the plurality of rules comprise rules that are indicative of efficiency considerations for the train consist.

3. The method of claim 1 wherein the processing step comprises the processor applying at least one rule that is based on a dynamic braking consideration for the train consist.

4. The method of claim 1 wherein the processing step comprises the processor applying at least one rule that is based on a tons per axle (TPA) rating for the train consist.

5. The method of claim 1 further comprising:

communicating the automatically generated recommendation to a train crew for the train consist; and

operating the locomotive consist in accordance with the recommendation for the route segment to provide power for and drive the train consist over the route segment.

6. The method of claim 5 further comprising the processor repeating the processing and automatically generating steps for each of a plurality of route segments, and wherein the communicating step comprises communicating the automatically generated recommendation to the train crew for the train consist in time for the train crew to implement the recommendation for each route segment.

7. The method of claim 1 further comprising the processor accessing a memory to read a plurality of data structures associated with the train consist data and the route data.

8. The method of claim 1 wherein a data associated with the recommendation comprises an identification of a particular locomotive in the train consist that is recommended for shutdown and an identification of a route segment for which that particular locomotive is recommended for shutdown.

9. The method of claim 8 wherein the route segment identification comprises an identifier for a geographic location associated with a start of the route segment.

10. The method of claim 1 wherein the train consist data comprises a data structure representative of an operational status for each locomotive in the train consist, each locomotive'"'"'s operational status being indicative of whether that locomotive is to be powered on or shut down for the route segment, and wherein the processing step comprises:

the processor determining a required power amount for the train consist based on the train consist data and the route data;

the processor determining an actual power amount for the train consist based on power data for the locomotives;

the processor determining whether an excess power amount exists by comparing the determined actual power amount with the required power amount; and

in response to a determination that an excess power amount exists, the processor applying a plurality of rules to the train consist data and the route data to determine whether a locomotive in the train consist having an operational status indicative of it being powered on should have its operational status changed to being shut down.

11. The method of claim 10 wherein the train consist data further comprises a data structure representative of a power amount for each locomotive in the train consist, and wherein the processing step comprises:

the processor determining whether a locomotive in the train consist has an operational status indicative of it being powered on and whether the locomotive has a power amount less than the determined excess power amount; and

in response to the processor determining that the locomotive has an operational status indicative of it being powered on and that the locomotive has a power amount less than the determined excess power amount, the processor testing whether the locomotive can have its operational status changed to be indicative of it being shut down, wherein the testing includes application of the territory rule; and

wherein the automatically generating step comprises, in response to the testing resulting in a determination that the locomotive can have its operational status changed to be indicative of it being shut down, the processor automatically generating recommendation data for the locomotive to be shut down.

12. The method of claim 10 wherein the processing step further comprises:

in response to a determination that an excess power amount does not exist, the processor determining that a locomotive in the train consist having an operational status indicative of it being shut down should have its operational status changed to being indicative of being powered on.

13. The method of claim 1 wherein the rules further comprise a dead weight consideration rule that is configured to prevent a shut down recommendation of a locomotive in the locomotive consist if dead weight added to the train consist by a shut down of that locomotive would cause a shortage of power for the locomotive consist.

14. The method of claim 1 wherein the rules further comprise a lead locomotive bypass rule that is configured to prevent a shut down recommendation of the lead locomotive.

15. The method of claim 1 wherein the processing step further comprises:

the processor determining whether a locomotive power requirement for the train consist is satisfied should the locomotive under consideration be shut down for the route segment;

the processor determining whether the locomotive under consideration is the rearmost locomotive; and

in response to a determination that the locomotive under consideration is the rearmost locomotive, the processor performing the territory rule applying step; and

wherein the territory rule applying step further comprises;

in response to a negative determination that the territory data does not correspond to the predefined territory and a determination that the locomotive power requirement for the train consist is satisfied should the rearmost locomotive be shut down for the route segment, identifying the rearmost locomotive for recommended shut down for the route segment.

16. The method of claim 15 wherein the locomotive consist further comprises a cut-in locomotive.

17. The method of claim 1 wherein the rules further comprise a coupler alignment rule that is configured to prevent a shut down recommendation of a first locomotive in front of a second locomotive that is not coupler aligned with the first locomotive.

18. The method of claim 1 wherein the rules further comprise a power threshold rule that is configured to prevent a shut down recommendation of any locomotives in a lead locomotive consist for the train consist in response to a determination that a power amount for a locomotive consist in the train consist other than the lead locomotive consist exceeds a threshold.

19. An apparatus comprising:

a memory for storing train consist data and route data for a train consist, the train consist comprising a locomotive consist and a plurality of cars, the locomotive consist comprising a lead locomotive and a rearmost locomotive; and

a processor configured to

(1) apply the train consist data and the route data using a plurality of rules, wherein the rules comprise a territory rule that is configured to prevent a shut down recommendation of the rearmost locomotive in a predefined territory as determined from the route data,

wherein the processor is further configured to, as part of applying the territory rule,

(i) determine territory data for a route segment based on the route data,

(ii) determine whether the territory data corresponds to the predefined territory, the predefined territory being indicative of a particular territory where safety braking considerations apply, and

(iii) in response to a positive determination that the territory data corresponds to the predefined territory, prevent the rearmost locomotive from being recommended for a shut down, and

(2) in response to applying the train consist data and the route data using the rules, automatically generate recommendation data that is indicative of how many and which locomotives of the train consist should be powered on or shut down for a route segment.

20. The apparatus of claim 19 wherein the plurality of rules comprise rules that are indicative of efficiency considerations for the train consist.

21. The apparatus of claim 19 wherein the processor is further configured to apply at least one rule that is based on a dynamic braking consideration for the train consist.

22. The apparatus of claim 19 wherein the processor is further configured to apply at least one rule that is based on a tons per axle (TPA) rating for the train consist.

23. The apparatus of claim 19 wherein the processor is further configured to communicate the automatically generated recommendation to a train crew for the train consist.

24. The apparatus of claim 23 wherein the processor is configured to

(1) repeat the processing operations for each of a plurality of route segments, and

(2) communicate the automatically generated recommendation to the train crew for the train consist in time for the train crew to implement the recommendation for each route segment.

25. The apparatus of claim 19 wherein the processor is further configured to access the memory to read a plurality of data structures associated with the train consist data and the route data.

26. The apparatus of claim 19 wherein the recommendation data comprises an identification of a particular locomotive in the train consist that is recommended for shutdown and an identification of a route segment for which that particular locomotive is recommended for shutdown.

27. The apparatus of claim 26 wherein the route segment identification comprises an identifier for a geographic location associated with a start of the route segment.

28. The apparatus of claim 19 wherein the train consist data comprises a data structure representative of an operational status for each locomotive in the train consist, each locomotive'"'"'s operational status being indicative of whether that locomotive is to be powered on or shut down for the route segment, and wherein the processor is further configured to:

determine a required power amount for the train consist based on the train consist data and the route data;

determine an actual power amount for the train consist based on power data for the locomotives;

determine whether an excess power amount exists by comparing the determined actual power amount with the required power amount; and

in response to a determination that an excess power amount exists, apply a plurality of rules to the train consist data and the route data to determine whether a locomotive in the train consist having an operational status indicative of it being powered on should have its operational status changed to being shut down.

29. The apparatus of claim 28 wherein the train consist data further comprises a data structure representative of a power amount for each locomotive in the train consist, and

wherein the processor is further configured to:

determine whether a locomotive in the train consist has an operational status indicative of it being powered on and whether the locomotive has a power amount less than the determined excess power amount;

in response to a determination by the processor that the locomotive has an operational status indicative of it being powered on and that the locomotive has a power amount less than the determined excess power amount, test whether the locomotive can have its operational status changed to be indicative of it being shut down, wherein the testing operation includes an application of the territory rule; and

in response to the test resulting in a determination by the processor that the locomotive can have its operational status changed to be indicative of it being shut down, automatically generate recommendation data for the locomotive to be shut down.

30. The apparatus of claim 28 wherein the processor is further configured to,

in response to a determination that an excess power amount does not exist, determine that a locomotive in the train consist having an operational status indicative of it being shut down should have its operational status changed to being indicative of being powered on.

31. The apparatus of claim 29 wherein the processor is further configured to, as part of the testing operation:

recalculate the required power amount in view of the locomotive being shut down;

determine whether the train consist would have sufficient power with the locomotive shut down based on the recalculated power amount; and

in response to a determination by the processor that the train consist would not have sufficient power with the locomotive shut down, determine that the locomotive'"'"'s operational status should remain indicative of it being powered on.

32. The apparatus of claim 31 wherein the processor is further configured to iterate the processing operation over a plurality of locomotives in the train consist other than the head locomotive to determine whether any of the plurality of locomotives in the train consist other than the head locomotive can be recommended for shut down.

33. The apparatus of claim 19 wherein the rules further comprise a territory rule that is configured to prevent a shut down recommendation of a trailing locomotive in a predefined territory as determined from the route data.

34. The apparatus of claim 19 wherein the rules further comprise a coupler alignment rule that is configured to prevent a shut down recommendation of a first locomotive in front of a second locomotive that is not coupler aligned with the first locomotive.

35. The apparatus of claim 19 wherein the rules further comprise a power threshold rule that is configured to prevent a shut down recommendation of any locomotives in a lead locomotive consist for the train consist in response to a determination that a power amount for a locomotive consist in the train consist other than the lead locomotive consist exceeds a threshold.

36. The non-transitory computer-readable storage medium of claim 35 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to:

determine whether a locomotive power requirement for the train consist is satisfied should the locomotive under consideration be shut down for the route segment;

determine whether the locomotive under consideration is the rearmost locomotive; and

in response to a determination that the locomotive under consideration is the rearmost locomotive, apply the territory rule; and

wherein application of the territory rule further causes the computer to;

in response to a negative determination that the territory data does not correspond to the predefined territory and a determination that the locomotive power requirement for the train consist is satisfied should the rearmost locomotive be shut down for the route segment, identify the rearmost locomotive for recommended shut down for the route segment.

37. A non-transitory computer-readable storage medium comprising:

a plurality of instructions stored on the non-transitory computer-readable storage medium and executable by a processor of a computer,

wherein the instructions, when executed by the processor, are configured to cause the computer to;

process train consist data and route data for a train consist, the train consist comprising a locomotive consist and a plurality of cars, the locomotive consist comprising a lead locomotive and a rearmost locomotive;

apply the train consist data and the route data using a plurality of rules, wherein the rules comprise a territory rule that is configured to prevent a shut down recommendation of the rearmost locomotive in a predefined territory as determined from the route data,

wherein execution of the territory rule further causes the computer to

(a) determine territory data for a route segment based on the route data,

(b) determine whether the territory data corresponds to the predefined territory, the predefined territory being indicative of a particular territory where safety braking considerations apply, and

(c) in response to a positive determination that the territory data corresponds to the predefined territory, prevent the rearmost locomotive from being recommended for a shut down; and

in response to applying the train consist data and the route data using the rules, automatically generate recommendation data that is indicative of how many and which locomotives of the train consist should be powered on or shut down for the route segment.

38. The non-transitory computer-readable storage medium of claim 37 wherein the plurality of rules comprise rules that are indicative of efficiency considerations for the train consist.

39. The non-transitory computer-readable storage medium of claim 37 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to apply at least one rule that is based on a dynamic braking consideration for the train consist.

40. The non-transitory computer-readable storage medium of claim 37 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to apply at least one rule that is based on a tons per axle (TPA) rating for the train consist.

41. The non-transitory computer-readable storage medium of claim 37 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to communicate the automatically generated recommendation to a train crew for the train consist.

42. The non-transitory computer-readable storage medium of claim 41 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to

(1) repeat the operations for each of a plurality of route segments, and

(2) communicate the automatically generated recommendation to the train crew for the train consist in time for the train crew to implement the recommendation for each route segment.

43. The non-transitory computer-readable storage medium of claim 37 wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to access a memory to read a plurality of data structures associated with the train consist data and the route data.

44. The non-transitory computer-readable storage medium of claim 37 wherein the recommendation data comprises an identification of a particular locomotive in the train consist that is recommended for shutdown and an identification of a route segment for which that particular locomotive is recommended for shutdown.

45. The non-transitory computer-readable storage medium of claim 44 wherein the route segment identification comprises an identifier for a geographic location associated with a start of the route segment.

46. The non-transitory computer-readable storage medium of claim 37 wherein the train consist data comprises a data structure representative of an operational status for each locomotive in the train consist, each locomotive'"'"'s operational status being indicative of whether that locomotive is to be powered on or shut down for the route segment, and

wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to:

determine a required power amount for the train consist based on the train consist data and the route data;

determine an actual power amount for the train consist based on power data for the locomotives;

determine whether an excess power amount exists by comparing the determined actual power amount with the required power amount; and

in response to a determination that an excess power amount exists, apply a plurality of rules to the train consist data and the route data to determine whether a locomotive in the train consist having an operational status indicative of it being powered on should have its operational status changed to being shut down.

47. The non-transitory computer-readable storage medium of claim 46 wherein the train consist data further comprises a data structure representative of a power amount for each locomotive in the train consist, and

wherein the processor-executable instructions are further configured to, upon execution by the processor, cause the computer to:

determine whether a locomotive in the train consist has an operational status indicative of it being powered on and whether the locomotive has a power amount less than the determined excess power amount;

in response to a determination that the locomotive has an operational status indicative of it being powered on and the locomotive has a power amount less than the determined excess power amount, test whether the locomotive can have its operational status changed to be indicative of it being shut down, wherein the testing operation includes an application of the territory rule; and

in response to the test resulting in a determination that the locomotive can have its operational status changed to be indicative of it being shut down, automatically generate recommendation data for the locomotive to be shut down.

48. The non-transitory computer-readable storage medium of claim 46 wherein the processor-executable instructions are further configured, upon execution by the processor, cause the computer to,

in response to a determination that an excess power amount does not exist, determine that a locomotive in the train consist having an operational status indicative of it being shut down should have its operational status changed to being indicative of being powered on.

49. The non-transitory computer-readable storage medium of claim 37 wherein the rules further comprise a dead weight consideration rule that is configured to prevent a shut down recommendation of a locomotive in a lead locomotive consist of the train consist if dead weight added to the train consist by a shut down of that locomotive would cause a shortage of power for the lead locomotive consist.

50. The non-transitory computer-readable storage medium of claim 37 wherein the rules further comprise a lead locomotive bypass rule that is configured to prevent a shut down recommendation of the lead locomotive.

51. The non-transitory computer-readable storage medium of claim 37 wherein the rules further comprise a coupler alignment rule that is configured to prevent a shut down recommendation of a first locomotive in front of a second locomotive that is not coupler aligned with the first locomotive.

52. The non-transitory computer-readable storage medium of claim 37 wherein the rules further comprise a power threshold rule that is configured to prevent a shut down recommendation of any locomotives in a lead locomotive consist for the train consist in response to a determination that a power amount for a locomotive consist in the train consist other than the lead locomotive consist exceeds a threshold.

53. The non-transitory computer-readable storage medium of claim 37 wherein the rules further comprise

(1) a power threshold rule that is configured to prevent a shut down recommendation of any locomotives in a lead locomotive consist for the train consist in response to a determination that a power amount for a locomotive consist in the train consist other than the lead locomotive consist exceeds a threshold,

(2) a dead weight consideration rule that is configured to prevent a shut down recommendation of a locomotive in a lead locomotive consist of the train consist if dead weight added to the train consist by a shut down of that locomotive would cause a shortage of power for the lead locomotive consist,

(3) a coupler alignment rule that is configured to prevent a shut down recommendation of a first locomotive in front of a second locomotive that is not coupler aligned with the first locomotive, and

(4) a lead locomotive bypass rule that is configured to prevent a shut down recommendation of the lead locomotive.