Railway locomotive brake controller

• US 6,435,624 B1
• Filed: 05/04/2001
• Issued: 08/20/2002
• Est. Priority Date: 05/04/2001
• Status: Active Grant

• Current Assignee: Westinghouse Air Brake Technologies Corporation
• Original Assignee: Westinghouse Air Brake Technologies Corporation
• Inventors: Kull, Robert C., Dimsa, Robert D.
• Primary Examiner(s): Butler, Douglas C.
• Application Number:
  US09/849,738
• Time in Patent Office: 473 Days
• Field of Search: 303/7, 303/8, 303/3, 303/15, 303/20, 303/33, 303/47, 303/16, 246/182.R, 246/167.R, 246/187.C, 246/182.B, 246/169.R, 340/933, 340/3.1, 307/131, 307/151, 701/70, 105/61
• US Class Current: 303/15
• 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: B61L 15/0036 Conductor-based, e.g. using CAN-Bus, train-line or optical fibres

Abstract

An integrated locomotive braking and ECP braking control on a lead locomotive for implementing braking effort on all locomotives in a manner relative to braking effort applied on ECP freight cars. On the lead locomotive, a data interface can be established between an head-end-unit and a brake controller. The head-end-unit can electrically signal each ECP freight car to carry out braking commands. The integrated brake control can include a CPU, as part of either the brake controller or the head-end-unit, which can be programmed to provide braking effort on the lead locomotive relative to the braking effort applied on the ECP freight cars. The braking on the lead locomotive is implemented by the brake controller by controlling the independent brake relative to the braking effort commanded on the ECP freight cars. The independent brake on non-ECP trailing locomotives is connected to the lead locomotive independent brake via a standard independent brake pneumatic connection. As a result, the same braking effort applied on the lead locomotive via the independent brake is automatically implemented on the non-ECP trailing locomotives via the independent brake pneumatic connection such that all locomotives are braked relative to braking on the ECP freight cars.

Claims

1. A railway locomotive brake control apparatus on a freight train having at least one ECP equipped freight car, an ECP equipped lead locomotive and at least one trailing locomotive, each locomotive having an independent brake valve and each locomotive being pneumatically interconnected via an independent application and release pipe therebetween, said locomotive brake control apparatus comprising:

a. a brake controller on said lead locomotive for electrically communicating signals indicative of at least brake commands to said at least one ECP equipped freight car;

b. said brake controller controlling said independent brake valve on said lead locomotive to implement braking effort on said lead locomotive relative to braking effort on said at least one ECP equipped freight car resulting from said signals; and

d. said brake controller controlling said independent brake valve on said at least one trailing locomotive via said independent application and release pipe to implement braking effort on said at least one trailing locomotive relative to said braking effort on said at least one ECP equipped freight car.

2. The locomotive brake control apparatus of claim 1 wherein said brake controller on said lead locomotive further comprises a head-end-unit.

3. The locomotive brake control apparatus of claim 2 wherein said brake controller on said lead locomotive further comprises:

a. an electronic air brake controller; and

b. said head-end-unit communicating said signals with said electronic air brake controller.

4. The locomotive brake control apparatus of claim 3 wherein said electronic air brake controller controls said independent brake valve on said lead locomotive and said independent brake valve on said trailing locomotive via said independent application and release pipe.

5. The locomotive brake control apparatus of claim 1 wherein said lead locomotive and said at least one trailing locomotive are each equipped with a locomotive MU cable, and said at least one ECP car has an ECP trainline, said locomotive brake control apparatus further comprising:

a. an interface adapter interconnecting said ECP trainline with said MU cable on said at least one trailing locomotive; and

b. said signals conveyed between said at least one ECP car and said lead locomotive through said ECP trainline and said MU cable via said interface adapter.

6. A railway locomotive brake control method for a freight train having at least one ECP equipped freight car, an ECP equipped lead locomotive and at least one trailing locomotive, each locomotive having an independent brake valve and each locomotive being pneumatically interconnected via an independent application and release pipe therebetween, said locomotive brake control method comprising:

a. electrically communicating signals indicative of at least brake commands from said lead locomotive to said at least one ECP equipped freight car;

b. controlling said independent brake valve on said lead locomotive to implement braking effort on said lead locomotive relative to braking effort on said at least one ECP equipped freight car resulting from said electrically communicated signals; and

c. controlling said independent brake valve on said at least one trailing locomotive via said independent application and release pipe to implement braking effort on said at least one trailing locomotive relative to said braking effort on said at least one ECP equipped freight car.

7. The locomotive brake control method of claim 6 wherein said lead locomotive and said at least one trailing locomotive are each equipped with a locomotive MU cable, and said at least one ECP equipped freight car has an ECP trainline, said locomotive brake control method further comprising:

a. interfacing said MU cable on said at least one trailing locomotive with said ECP trainline; and

b. conveying said signals between said lead locomotive and said at least one ECP equipped freight car through said ECP trainline and said MU cable via said interface adapter.