Air data probe replacement determination system
AssigneeHoneywell International Inc.
InventorsGrant A. Gordon, Merle L Sand, Morris G. Anderson
Life of this patent
Estimating the term…
Abstract
Method and systems of determining when to replace an air data probe are provided. The method includes estimating air data probe temperatures based at least in part on available vehicle sensor data; tracking an amount of time an estimated temperature of the heating element is within at least one temperature range; and providing an air data probe replacement indication when a replacement threshold is met that is at least in part based on reaching a cumulative amount of time the heating element has an estimated temperature within the at least one temperature range.
Claims20
A method of determining when to replace an air data probe, the method comprising:
- estimating air data probe temperatures based at least in part on available vehicle sensor data;
- tracking an amount of time an estimated temperature of a heating element of the air data probe is within at least one temperature range;
- and
- providing an air data probe replacement indication when a replacement threshold is met that is at least in part based on reaching a cumulative amount of time the heating element has an estimated temperature within the at least one temperature range.
A method of determining when to replace an air data probe, the method comprising:
- estimating a temperature of at least one heating element of the air data probe from data read off of a data bus;
- tracking time when the at least one heating element has a measured temperature within defined temperature ranges;
- applying a cumulated weighted system that predicts the life expectancy of the air data probe based on the tracked time of the at least one heating element within each temperature range;
- and
- generating a remaining life expectancy signal of the air data probe based on the prediction of the cumulated weighted system.
An air data probe operating and monitoring system, the system comprising:
- at least one heating element housed within an air data probe;
- at least one clock;
- at least one memory to store at least operating instructions;
- at least one controller in operational communication with a data bus, the at least one controller configured to estimate a temperature of the air data probe based at least in part on data read off the data bus, the at least one controller further configured to implement the operating instructions in the at least one memory to track time that the at least one heating element of the air data probe has an estimated temperature within defined temperature ranges using the at least one clock, the at least one controller further configured to apply a cumulated weighted function that predicts the life expectancy of the air data probe based on an accumulated time the heating element is tracked within each temperature range;
- and
- an output in communication with the at least one controller, the at least one controller configured to communicate a replace air data probe message to the output when a result of the cumulated weighted system reaches a select threshold.
Dependencies are inferred from the claim text.