Brake monitoring system for an air brake arrangement

• US 8,924,117 B2
• Filed: 05/04/2012
• Issued: 12/30/2014
• Est. Priority Date: 05/04/2012
• Status: Active Grant

• Current Assignee: Wabtec Corporation (Westinghouse Air Brake Technologies Corporation)
• Original Assignee: Wabtec Corporation (Westinghouse Air Brake Technologies Corporation)
• Inventors: Kull, Robert C.
• Primary Examiner(s): MARC-COLEMAN, MARTHE Y
• Application Number:
  US13/464,080
• Publication Number:
  US 20130297163A1
• Time in Patent Office: 970 Days
• Field of Search: 701/70, 701/20, 701/19, 701/32, 701/6, 303/3, 303/15, 303/20, 303/7, 303/6.1, 303/128, 702/114
• US Class Current: 701/70
• CPC Class Codes: B60T 13/665 the systems being specially adapted for transferring two or more command signals, e.g. railway systems B60T13/662 takes precedence
• CPC Class Codes: B60T 17/228 for railway vehicles
• CPC Class Codes: B60T 7/18 operated by wayside apparatus

Abstract

A brake monitoring system for an air brake arrangement including: at least one sensor to measure air pressure in at least one component of an air brake arrangement; at least one local controller to determine air brake data; and at least one communication device to transmit at least a portion of the air brake. An air brake arrangement and a computer-implemented method of determining air brake data in an air brake arrangement are also disclosed.

Claims

1. A brake monitoring system for an air brake arrangement comprising at least one reservoir configured to deliver air to at least one air-operable braking assembly for braking at least one wheel of a vehicle, the brake monitoring system comprising:

at least one sensor configured to measure air pressure in at least one component of the air brake arrangement;

at least one local controller configured to determine air brake data comprising at least one of the following;

air pressure in the at least one component of the air brake arrangement, air pressure over time in the at least one component of the air brake arrangement, air leakage in the air brake arrangement, air leakage rate in the air brake arrangement, air leakage in the at least one component of the air brake arrangement, air leakage rate in the at least one component of the air brake arrangement, brake holding prediction data, air level data, or any combination thereof; and

at least one communication device configured to directly or indirectly transmit or communicate at least a portion of the air brake data to at least one of the following;

a remote controller, a central controller, a vehicle controller, an on-board controller of a locomotive, a central dispatch system, or any combination thereof,

wherein the air brake data comprises the brake holding prediction data.

2. The brake monitoring system of claim 1, wherein the at least one component comprises the at least one air reservoir.

3. The brake monitoring system of claim 2, wherein the at least one air reservoir comprises at least one of the following:

at least one auxiliary reservoir, at least one emergency reservoir, at least one hatch reservoir, or any combination thereof.

4. The brake monitoring system of claim 2, wherein the at least one air reservoir comprises a plurality of air reservoirs, and wherein the air brake data comprises at least one of the following:

air pressure in the plurality of air reservoirs, air pressure over time in the plurality of air reservoirs, air leakage in the plurality of air reservoirs, air leakage rate in the plurality of air reservoirs, brake holding prediction data based upon the air brake data for the plurality of reservoirs, air level data of the plurality of reservoirs, or any combination thereof.

5. The brake monitoring system of claim 1, wherein the braking assembly is a bladder-based braking mechanism.

6. The brake monitoring system of claim 1, wherein the air brake arrangement comprises an existing controller, and wherein the at least one local controller is at least one of the following:

in communication with existing controller, incorporated with the existing controller, programmed as part of the existing controller, integrated with the existing controller, or any combination thereof.

7. The brake monitoring system of claim 1, wherein at least a portion of the air brake data is determined on at least one of the following bases:

dynamically, periodically, continually, predetermined, prior to departure, during operation, during an emergency event, or any combination thereof.

8. The brake monitoring system of claim 1, wherein the at least one communication device transmits at least a portion of the air brake data over at least one of the following:

a wire, a cable, a communication line, an existing communication line, or any combination thereof.

9. The brake monitoring system of claim 1, wherein the at least one communication device transmits at least a portion of the air brake data wirelessly.

10. The brake monitoring system of claim 1, further comprising at least one positioning system configured to generate position data.

11. The brake monitoring system of claim 10, wherein at least a portion of the position data is processed to determine at least one of the following:

the position a vehicle, the position of a train in a track network, the position of at least one railcar of a train in a track network, the position of at least one locomotive of a train in a track network, the grade of a road, the grade of a track, or any combination thereof.

12. The brake monitoring system of claim 1, wherein the air brake arrangement is equipped on at least one car of a train, and at least a portion of the air brake data is transmitted or communicated to an on-board controller of a locomotive of the train.

13. The brake monitoring system of claim 12, wherein the on-board controller determines at least one air brake arrangement condition based at least partially on the air brake data.

14. The brake monitoring system of claim 12, wherein at least a portion of at least one of the air brake data and at least one air brake arrangement condition is directly or indirectly transmitted to a central controller.

15. The brake monitoring system of claim 14, wherein, based at least partially on at least a portion of at least one of the air brake data of the local controller and the at least one air brake arrangement condition, the central controller is configured to determine at least one of air brake data and air brake arrangement condition data comprising at least one of the following:

air pressure in the at least one component of the air brake arrangement, air pressure over time in the at least one component of the air brake arrangement, air leakage in the air brake arrangement, air leakage rate in the air brake arrangement, air leakage in the at least one component of the air brake arrangement, air leakage rate in the at least one component of the air brake arrangement, brake holding prediction data, air level data, or any combination thereof.

16. The brake monitoring system of claim 15, wherein the at least a portion of the air brake data determined by the central controller is transmitted to at least one of the following:

the local controller, the remote controller, at least one other central controller, the vehicle controller, the on-board controller of the locomotive, the central dispatch system, or any combination thereof.

17. The brake monitoring system of claim 1, further comprising at least one separate air reservoir in fluid communication with the at least one air reservoir of the air brake arrangement, wherein the fluid communication between the separate air reservoir and the at least one air reservoir is controllable.

18. The brake monitoring system of claim 17, wherein the fluid communication between the separate air reservoir and the at least one air reservoir is controlled based at least partially on the air brake data.

19. In an air brake arrangement comprising at least one reservoir configured to deliver air to at least one air-operable braking assembly for braking at least one wheel of a vehicle, a brake monitoring system comprising:

at least one sensor configured to measure air pressure in at least one component of the air brake arrangement;

at least one local controller configured to determine air brake data comprising at least one of the following;

air pressure in the at least one component of the air brake arrangement, air pressure over time in the at least one component of the air brake arrangement, air leakage in the air brake arrangement, air leakage rate in the air brake arrangement, air leakage in the at least one component of the air brake arrangement, air leakage rate in the at least one component of the air brake arrangement, brake holding prediction data, air level data, or any combination thereof; and

at least one communication device configured to directly or indirectly transmit or communicate at least a portion of the air brake data to at least one of the following;

a remote controller, a central controller, a vehicle controller, an on-board controller of a locomotive, a central dispatch system, or any combination thereof,

wherein the air brake data comprises the brake holding prediction data.

20. A computer-implemented method of determining air brake data in an air brake arrangement comprising at least one reservoir configured to deliver air to at least one air-operable braking assembly for braking at least one wheel of a vehicle, the method comprising:

sensing air pressure in at least one component of the air brake arrangement;

determining air brake data comprising at least one of the following;

air pressure in the at least one component of the air brake arrangement, air pressure over time in the at least one component of the air brake arrangement, air leakage in the air brake arrangement, air leakage rate in the air brake arrangement, air leakage in the at least one component of the air brake arrangement, air leakage rate in the at least one component of the air brake arrangement, brake holding prediction data, air level data, or any combination thereof; and

transmitting or communicating at least a portion of the air brake data to at least one of the following;

a remote controller, a central controller, a vehicle controller, an on-board controller of a locomotive, a central dispatch system, or any combination thereof,

wherein the air brake data comprises the brake holding prediction data.