Systems and methods for built in test equipment for a brake control system

• US 9,715,770 B2
• Filed: 01/29/2016
• Issued: 07/25/2017
• Est. Priority Date: 02/25/2014
• Status: Active Grant

• Current Assignee: Goodrich Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Goodrich Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Cahill, Eric Daniel
• Primary Examiner(s): HOLLOWAY, JASON R
• Application Number:
  US15/010,643
• Publication Number:
  US 20160148445A1
• Time in Patent Office: 543 Days
• CPC Class Codes: B60T 17/221 Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems hydraulic pressure systems in general F15B19/00, F15B21/04; testing structures or apparatus G01M
• CPC Class Codes: B64C 25/44 Actuating mechanisms
• CPC Class Codes: B64F 5/60 Testing or inspecting aircraft components or systems
• CPC Class Codes: G01L 5/28 for testing brakes
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

A method is disclosed that comprises severing an I/O channel between an EMAC and an aircraft component; sending a test signal to the brake system controller; receiving, from the brake system controller, a feedback signal to the test signal; and determining an appropriateness of the feedback signal.

Claims

1. A method comprising:

disposing a selectively severable I/O channel between an electromechanical actuator controller (EMAC) and a brake system controller (BSC);

coupling the EMAC with a testing module of a built in test equipment (BITE) region, wherein the testing module is separate from the BSC and is capable of severing the selectively severable I/O channel between the EMAC and the BSC and sending a test signal to the EMAC;

disposing a safety interlock of the BITE region around the EMAC;

establishing a bypass of the safety interlock by disposing a non-severable I/O channel between the EMAC and an emergency brake system.

2. The method of claim 1, further comprising placing the safety interlock in electrical communication with the testing module.

3. The method of claim 2, further comprising loading a test script into the testing module.

4. The method of claim 3, further comprising loading an expected result profile into the testing module.

5. The method of claim 1, further comprising placing the BITE region in electrical communication with a signal conditioning circuit.

6. The method of claim 1, further comprising placing the BITE region in electrical communication with a sensor.

7. The method of claim 1, further comprising receiving, at the EMAC, an emergency braking command from the emergency braking system.

8. The method of claim 7, further comprising stopping, by the EMAC, of a test in response to the emergency braking command.