Systems and methods for handling malfunctions

• US 9,417,630 B2
• Filed: 05/22/2014
• Issued: 08/16/2016
• Est. Priority Date: 05/22/2014
• Status: Active Grant

• Current Assignee: GE Global Sourcing LLC (Westinghouse Air Brake Technologies Corporation)
• Original Assignee: General Electric Company
• Inventors: Kumar, Ajith Kuttannair, Eldredge, David Allen, Shaffer, Glenn Robert, Noffsinger, Joseph Forrest
• Primary Examiner(s): Jabr, Fadey
• Assistant Examiner(s): Mahne, Kevin P
• Application Number:
  US14/284,537
• Publication Number:
  US 20150338848A1
• Time in Patent Office: 817 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60K 28/10 responsive to conditions relating to the vehicle
• CPC Class Codes: B61L 15/0058 On-board optimisation of vehicle or vehicle train operation
• CPC Class Codes: B61L 15/0081 On-board diagnosis or maintenance
• CPC Class Codes: B61L 23/00 Control, warning or like safety means along the route or between vehicles or trains
• CPC Class Codes: B61L 27/53 for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
• CPC Class Codes: B61L 27/57 for vehicles or trains, e.g. trackside supervision of train conditions
• CPC Class Codes: G05B 23/0291 Switching into safety or degraded mode, e.g. protection and supervision after failure
• CPC Class Codes: G05D 1/0055 with safety arrangements
• CPC Class Codes: G07C 5/0816 Indicating performance data, e.g. occurrence of a malfunction
• CPC Class Codes: G08G 1/20 Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles

Abstract

A method comprises receiving an alarm state from one or more inspection systems that inspects one or more components of a vehicle system. The method then identifies operational parameters of the vehicle system. The operational parameters represent at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system or an identification of one or more vehicle units in the vehicle system. The method then selects and implements a mitigating action to implement from plural different mitigating actions based on the alarm state and the one or more parameters of the vehicle.

Claims

1. A method comprising:

receiving an alarm state from one or more sensors that inspect one or more components of a vehicle system, the alarm state indicating at least one of a type of alarm, a severity of the alarm, or a location of a defect causing the alarm;

identifying one or more operational parameters of the vehicle system, the operational parameters representing at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system, or an identification of one or more vehicle units in the vehicle system;

selecting, with one or more computer processors, a selected mitigating action to implement, the selected mitigating action selected from plural different mitigating actions based on the alarm state and the one or more operational parameters of the vehicle system, wherein, for a common alarm state, a first mitigating action is selected from among the plural different mitigating actions responsive to the one or more operational parameters indicating that the vehicle system is travelling toward or over a first grade and a different, second mitigating action is selected from among the plural different mitigating actions responsive to the one or more operational parameters indicating that the vehicle system is travelling over or toward a different, second grade; and

implementing, with the one or more computer processors, the mitigating action in response to the alarm state.

2. The method of claim 1, further comprising calculating a quantifiable risk assessment index representative of at least one of a magnitude of a safety risk or an immediacy of the safety risk of the vehicle system based on the alarm state and the one or more operational parameters.

3. The method of claim 2, wherein the selected mitigating action is selected from among the plural different mitigating actions based on the quantifiable risk assessment index.

4. The method of claim 2, wherein calculating the quantifiable risk assessment index further comprises weighing the alarm state and the one or more operational parameters, and implementing the mitigating action responsive to the risk assessment exceeding a predetermined threshold.

5. The method of claim 1, wherein the plural different mitigating actions are associated with plural different moving speeds of the vehicle system, and the selected mitigating action is selected from among the plural different mitigating actions based on the current moving speed of the vehicle system.

6. The method of claim 5, wherein the selected mitigating action includes reducing the current moving speed of the vehicle system by an amount that is proportional to a severity of the alarm.

7. The method of claim 1, wherein the selected mitigating action includes changing a route being travelled on by the vehicle system from a first route to a second route, the first route headed toward an area that is more congested with at least one of other vehicle systems or buildings than the second route.

8. A system comprising:

a guidance controller configured to identify one or more operational parameters of a vehicle system, the operational parameters representing at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system, or an identification of one or more vehicle units in the vehicle system; and

one or more processors communicably coupled to one or more sensors of the vehicle system and coupled to the guidance controller, the one or more processors configured to select one or more mitigating actions to implement selected from plural different mitigating actions based on an alarm state generated by the one or more sensors based on characteristics of one or more components of the vehicle system and based on the one or more operational parameters of the vehicle system, the one or more processors also configured to implement the mitigating action in response to the alarm state, wherein the one or more processors are further configured to select a first mitigating action from among the plural different mitigating actions responsive to the one or more operational parameters indicating that the vehicle system is traveling toward a first grade, and to select a second mitigating action that is different from the first mitigating action from among the plural different mitigating actions responsive to the one or more operational parameters indicate that the vehicle system is travelling over or toward a second grade.

9. The system of claim 8, wherein the one or more processors are further configured to calculate a quantifiable risk assessment index, representative of at least one of a magnitude of a safety risk or an immediacy of the safety risk of the vehicle system, based on the alarm state and the one or more operational parameters.

10. The system of claim 9, wherein the selected mitigating action is selected from among the plural different mitigating actions based on the quantifiable risk assessment index.

11. The system of claim 9, wherein the risk assessment index represents one or more weighted values of the alarm state and the one or more operational parameters, and the one or more processors are further configured to select one or more mitigating actions responsive to the risk assessment exceeding a predetermined threshold.

12. The system of claim 8, wherein the operational parameters includes plural different moving speeds.

13. The system of claim 12, wherein the selected mitigating action includes reducing the current moving speed of the vehicle system by an amount that is proportional to a severity of the alarm.

14. The system of claim 8, wherein the selected mitigating action includes changing a route being travelled on by the vehicle system from a first route to a second route, the first route headed toward an area that is more congested with at least one of other vehicle systems or buildings than the second route.

15. A system comprising:

a guidance controller configured to identify one or more operational parameters of a vehicle system having one or more sensors configured to inspect one or more components of the vehicle system to generate an alarm state based on one or more characteristics of the one or more components, the operational parameters representing at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system, or an identification of one or more vehicle units in the vehicles system; and

one or more processors configured to be communicably coupled with the one or more sensors and the guidance controller, the one or more processors configured to implement one or more mitigating actions selected from plural different mitigating actions, each of the plural different mitigating actions having an associated quantifiable risk assessment index based on the alarm state and the one or more operational parameters of the vehicle system, the one or more processors configured to select the one or more mitigating actions to implement based on the risk assessment indices, wherein the selected mitigating action includes changing a route being travelled on by the vehicle system from a first route to a second route, the first route headed toward an area that is more congested with at least one of other vehicle systems or buildings than the second route.

16. The system of claim 15, wherein the quantifiable risk assessment index is representative of at least one of a magnitude of a safety risk, or an immediacy of the safety risk of the vehicle system.

17. The system of claim 15, wherein the risk assessment index represents one or more weighted values of the alarm state and the one or more operational parameters, and wherein the one or more processors are further configured to select the one or more mitigating actions responsive to the risk assessment exceeding a predetermined threshold.

18. The system of claim 15, wherein the selected mitigating action includes reducing the current moving speed of the vehicle system by an amount that is proportional to a severity of the alarm.

19. A method comprising:

receiving an alarm state from one or more sensors that inspect one or more components of a vehicle system, the alarm state indicating at least one of a type of alarm, a severity of the alarm, or a location of a defect causing the alarm;

identifying one or more operational parameters of the vehicle system, the operational parameters representing at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system, or an identification of one or more vehicle units in the vehicle system;

selecting with one or more computer processors, a selected mitigating action to implement, the selected mitigating action selected from plural different mitigating actions based on the alarm state and the one or more operational parameters of the vehicle system, wherein the selected mitigating action includes changing a route being travelled on by the vehicle system from a first route to a second route, the first route headed toward an area that is more congested with at least one of other vehicle systems or buildings than the second route; and

implementing, with the one or more computer processors, the mitigating action in response to the alarm state.

20. A system comprising:

a guidance controller configured to identify one or more operational parameters of a vehicle system, the operational parameters representing at least one of a current location of the vehicle system, a current terrain over which the vehicle system is currently travelling, an upcoming terrain that the vehicle system is travelling toward, a current moving speed of the vehicle system, a position of one or more controls of the vehicle system, a state of a brake of the vehicle system, or an identification of one or more vehicle units in the vehicle system; and

one or more processors communicably coupled to one or more sensors of the vehicle system and coupled to the guidance controller, the one or more processors configured to select one or more mitigating actions to implement selected from plural different mitigating actions based on an alarm state generated by the one or more sensors based on characteristics of one or more components of the vehicle system and based on the one or more operational parameters of the vehicle system, the one or more processors also configured to implement the mitigating action in response to the alarm state, wherein the selected mitigating action includes changing a route being travelled on by the vehicle system from a first route to a second route, the first route headed toward an area that is more congested with at least one of other vehicle systems or buildings than the second route.