CONSIST COMMUNICATION SYSTEM HAVING BEARING TEMPERATURE INPUT

• US 20130320154A1
• Filed: 05/31/2012
• Published: 12/05/2013
• Est. Priority Date: 05/31/2012
• Status: Active Grant

• Current Assignee: Progress Rail Locomotive Inc. (Caterpillar Incorporated)
• Original Assignee: Dale A. Brown
• Inventors: BROWN, Dale A.
• Granted Patent: US 8,925,872 B2
• Time in Patent Office: Days
• US Class Current: 246/169.A
• CPC Class Codes: B61G 5/06 for, or combined with, couplings or connectors for fluid conduits or electric cables
• CPC Class Codes: B61K 9/04 Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
• CPC Class Codes: B61L 15/0036 Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
• CPC Class Codes: B61L 15/0081 On-board diagnosis or maintenance
• CPC Class Codes: H01R 13/005 Electrical coupling combined with fluidic coupling

Abstract

A consist communication system is disclosed for use with a train consist. The system may have a sensor associated with a component of the consist and configured to generate a signal indicative of a performance parameter of the component. The system may further include a controller, a fluid conduit, at least a first cable disposed within the fluid conduit and configured to transmit the signal from the sensor to the controller, and a glad-hand coupling fixedly connected to an end of the fluid conduit.

Claims

1. A communication system for a consist, comprising:

a sensor associated with a component of the consist and configured to generate a signal indicative of a performance parameter of the component;

a controller;

a fluid conduit;

at least a first cable disposed within the fluid conduit and configured to transmit the signal from the sensor to the controller; and

a glad-hand coupling fixedly connected to an end of the fluid conduit.

2. The system of claim 1, wherein:

the component is a bearing; and

the sensor is configured to detect a temperature of the bearing.

3. The system of claim 2, wherein:

the fluid conduit is a first fluid conduit;

the at least a first cable is a first electro-magnetic cable; and

the communication system further includes;

a second fluid conduit mechanically connectable to the first fluid conduit;

a second electro-magnetic cable disposed within the second fluid conduit; and

a first transformer coil configured to wirelessly transmit the signal from the first electromagnetic cable to the second electromagnetic cable.

4. The system of claim 3, further including:

a third electro-magnetic cable disposed within the first fluid conduit;

a fourth electro-magnetic cable disposed within the second fluid conduit; and

a second transformer coil configured to wirelessly transmit electrical power from the third electro-magnetic cable to the fourth electro-magnetic cable.

5. The system of claim 4, wherein:

the first transformer coil has an operating frequency of about 10 MHz; and

the second transformer coil has an operating frequency of about 1 MHz.

6. The system of claim 4, further including signal conditioning electronics disposed within the glad-hand coupling at an end of the first electro-magnetic cable, the signal conditioning electronics being configured to amplify and filter the signal.

7. The system of claim 4, further including a redundant power transmission cable, and a redundant signal transmission cable disposed within the first fluid conduit.

8. The system of claim 2, further including a substantially translucent cover located at an end of the fluid conduit to seal off the at least one cable.

9. The system of claim 8, wherein the at least one cable is a fiber optic cable.

10. The system of claim 9, further including an attachment mechanism configured to align the fiber optic cable in a fixed arrangement.

11. The system of claim 9, wherein:

the fluid conduit is a first fluid conduit;

the fiber optic cable is a first fiber optic cable;

the system further includes;

a second fluid conduit mechanically connectable to the first fluid conduit; and

a second fiber optic cable disposed within the second fluid conduit; and

the cover is a lens configured to transmit the signal from the first fiber optic cable to the second fiber optic cable.

12. The system of claim 11, further including:

a first electro-magnetic cable disposed within the first fluid conduit;

a second electro-magnetic cable disposed within the second fluid conduit; and

a transformer coil configured to wirelessly transmit electrical power from the first electro-magnetic cable to the second electro-magnetic cable.

13. The system of claim 11, further including a closure mechanism configured to shield the translucent cover when the first fluid conduit is disconnected from the second fluid conduit.

14. The system of claim 2, wherein:

the consist includes a locomotive and at least one consist vehicle towed by the locomotive; and

the controller is located on the consist vehicle and configured to perform an analysis of the signal from the sensor to determine if the temperature of the bearing exceeds a threshold temperature.

15. The system of claim 14, wherein:

the controller is a first controller; and

the system further includes a second controller located on the locomotive,

wherein the first controller is further configured to transmit results of the analysis and the signal from the sensor to the second controller.

16. The system of claim 15, wherein the second controller is configured to perform an independent analysis of the signal from the sensor and make a comparison of results of the independent analysis to results of the analysis performed by the first controller.

17. The system of claim 16, wherein the second controller is further configured to communicate either a confirmation or a rejection of the analysis performed by the first controller to an operator of the consist based on the comparison.

18. The system of claim 2, wherein the sensor is a bearing thermocouple.

19. The system of claim 2, wherein the sensor is an infrared sensor.

20. A train consist, comprising:

a locomotive having a central controller;

at least one consist vehicle towed by the locomotive and having a vehicle controller;

a sensor associated with a wheel bearing of the consist vehicle and configured to generate a signal indicative of a temperature of the bearing;

a first fluid conduit extending from the sensor to the vehicle controller;

a first cable disposed within the fluid conduit and configured to transmit the signal to the vehicle controller;

a first glad-hand coupling fixedly connected to an end of the first fluid conduit;

a second fluid conduit substantially identical to the first fluid conduit and extending from the vehicle controller to the locomotive central controller;

a second cable disposed within the second fluid conduit and configured to transmit the signal from the vehicle controller to the central controller; and

a second glad-hand coupling fixedly connected to an end of the second fluid conduit and configured to connect to the first glad-hand coupling.