Brake monitoring system

Patent metadata

Field	Value
Publication number	US-9789974-B2
Application number	US-201514887069-A
Country	US
Kind code	B2
Filing date	Oct 19, 2015
Priority date	Oct 19, 2015
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

In accordance with various embodiments, disclosed is a brake monitoring system for monitoring the health status of the brakes of an aircraft, the aircraft comprising a plurality of brakes, the brake monitoring system comprising conducting a statistical comparison of a brake temperature against a temperature data centrality value based on the temperature values of the plurality of brakes.

First claim

What is claimed is:

1. A brake health monitoring system, comprising:
a temperature sensor system comprising a plurality of temperature sensors in thermal communication with a plurality of brakes; and
a processor configured to receive temperature measurements of each of the plurality of brakes from the plurality of temperature sensors, the processor further configured to calculate a temperature data centrality value based on the temperature measurements of each of the plurality of brakes, the processor further configured to calculate a temperature deviation value for each of the plurality of brakes based on the relative temperatures measured for each of the plurality of brakes compared to the temperature data centrality value, wherein the processor assigns a health status for each of the plurality of brakes.

2. The brake health monitoring system of claim 1 , wherein the processor assigns a health status for each of the plurality of brakes by analyzing the temperature deviation value for each of the plurality of brakes via a process control tool.

3. The brake health monitoring system of claim 1 , wherein each of the plurality of brakes is operatively coupled to a wheel of a landing gear of an aircraft.

4. The brake health monitoring system of claim 1 , wherein the temperature measurements of each of the plurality of brakes defines a temperature data set, wherein the temperature sensor system is configured to obtain multiple brake temperature data sets over multiple time instances.

5. The brake health monitoring system of claim 4 , wherein the temperature sensor system is configured to obtain brake temperature data from a single flight.

6. The brake health monitoring system of claim 5 , wherein the brake temperature data is obtained post flight.

7. The brake health monitoring system of claim 1 , wherein each of the temperature measurements of each of the plurality of brakes is an extreme temperature of the specific brake.

8. The brake health monitoring system of claim 1 , further comprising multiple processors, wherein a communicator system is configured to transmit the temperature measurements over the multiple processors via at least one of a wireless transmission, and a wired transmission.

9. The brake health monitoring system of claim 1 , wherein the temperature data centrality value comprises at least one of a median value, and a mean value.

10. The brake health monitoring system of claim 1 , wherein the temperature deviation value comprises one of an absolute difference value, or a ratio value.

11. The brake health monitoring system of claim 1 , wherein the processor assigns a health status via an individual moving range chart.

12. A brake health monitoring system for monitoring a health status of a brake system of an aircraft, the brake health monitoring system comprising:
a temperature sensor system in thermal communication with a plurality of brakes of the brake system, the temperature sensor system configured to obtain a brake temperature data set for the plurality of brakes, the brake temperature data set comprising a plurality of brake temperatures obtained at a specific time, wherein each brake temperature of the plurality of brake temperatures is associated with one of the plurality of brakes;
a processor configured to receive the brake temperature data set;
a communicator system configured to transmit the brake temperature data set from the temperature sensor system to the processor;
wherein the processor is configured to determine a temperature data centrality value based on the brake temperature data set for the plurality of brakes;
wherein the processor is configured to compare the brake temperature data set with the temperature data centrality value to generate a temperature deviation value data set comprising a plurality of deviation values, wherein each deviation value of the plurality of deviation values is associated with one of the plurality of brakes; and
wherein the processor is configured to analyze the temperature deviation value data set via a process control tool.

13. The brake health monitoring system of claim 12 , wherein the process control tool is an individual-moving range chart.

14. The brake health monitoring system of claim 12 , wherein the temperature data centrality value comprises at least one of a median value or a mean value.

15. The brake health monitoring system of claim 12 , wherein the brake temperature data set comprises multiple brake temperature data sets obtained over multiple time instances, and over at least one particular time of interest.

16. A method of monitoring health of a braking system, comprising:
measuring, by a plurality of sensors, temperatures of a plurality of brakes;
calculating, by a processor, a centrality value for the measured temperatures, the centrality value based on the measured temperatures for the plurality of brakes;
assigning, by the processor, a health status to each of the plurality of brakes based on a relationship between the centrality value and the measured temperature for each of the plurality of brakes; and
displaying, by a display unit, the health status for the plurality of brakes.

17. The method of claim 16 , further comprising calculating deviations of each of the measured temperatures from the centrality value.

18. The method of claim 16 , further comprising measuring temperatures of a plurality of brakes over multiple time instances.

19. The method of claim 18 , wherein the multiple time instances are separated by regular time intervals.

Assignees

• Goodrich Corp

Inventors

• Burte Paul R
• Walsh Andrew
• Rook Todd

Classifications

• F16D66/00

  Arrangements for monitoring working conditions, e.g. wear, temperature · CPC title

• B60T17/221 Primary

  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 title

• B64D2045/0085

  Devices for aircraft health monitoring, e.g. monitoring flutter or vibration · CPC title

• B64D45/00 Primary

  Aircraft indicators or protectors not otherwise provided for · CPC title

• F16D2066/001

  Temperature · CPC title