公开(公告)号：US20200072866A1

公开(公告)日：2020-03-05

申请号：US16118905

申请日：2018-08-31

Applicant: Honeywell International Inc.

Inventor： Grant A. Gordon ,  Merle L Sand ,  Lloyd Bratlien ,  Jason Garde ,  John W Jacoby

IPC: G01P21/00 ,  G01P5/165 ,  G01K7/16

Abstract: Method and systems of determining when to replace an air data probe are provided. The method includes measuring a temperature of a heating element of an air data probe; tracking an amount of time 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 a measured temperature within the at least one temperature range.

公开(公告)号：US11016117B2

公开(公告)日：2021-05-25

申请号：US16118905

申请日：2018-08-31

Applicant: Honeywell International Inc.

Inventor： Grant A. Gordon ,  Merle L Sand ,  Lloyd Bratlien ,  Jason Garde ,  John W Jacoby

IPC: G01P21/00 ,  G01K7/16 ,  G01P5/165 ,  G01P13/02

Abstract: Method and systems of determining when to replace an air data probe are provided. The method includes measuring a temperature of a heating element of an air data probe; tracking an amount of time 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 a measured temperature within the at least one temperature range.

公开(公告)号：US11422153B2

公开(公告)日：2022-08-23

申请号：US16752399

申请日：2020-01-24

Applicant: Honeywell International Inc.

Inventor： Grant A. Gordon ,  Merle L Sand ,  Morris G. Anderson

IPC: G01P21/00 ,  G01P5/10

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.

公开(公告)号：US20210231702A1

公开(公告)日：2021-07-29

申请号：US16752399

申请日：2020-01-24

Applicant: Honeywell International Inc.

Inventor： Grant A. Gordon ,  Merle L Sand ,  Morris G. Anderson

IPC: G01P21/00 ,  G01P5/10

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.

公开(公告)号：US11105691B2

公开(公告)日：2021-08-31

申请号：US15941520

申请日：2018-03-30

Applicant: Honeywell International Inc.

Inventor： Grant Gordon ,  Nicholas A. Everson ,  Morris Anderson ,  Merle L Sand

IPC: H05B3/00 ,  G01K13/02 ,  G01K1/08

Abstract: A total air temperature (TAT) probe having a self-regulating heating system is provided. A TAT probe housing includes at least one heating cavity that is located proximate to a tip of the TAT probe. A heating element is received within the at least one heating cavity. The heating element is composed from a flexible material with a very high positive temperature coefficient (PTC) that provides non-linear resistance with temperature with generally relatively low electrical resistances at temperatures below freezing and relatively high electrical resistances above freezing. A power source is coupled to the heating element. The very high PTC material of the heating element causes less power to be drawn by the heating element from the power source at higher temperatures above freezing than the power drawn by the heating element from the power source at lower temperatures below freezing to maintain a desired temperature of the TAT probe.

公开(公告)号：US20190301949A1

公开(公告)日：2019-10-03

申请号：US15941520

申请日：2018-03-30

Applicant: Honeywell International Inc.

Inventor： Grant Gordon ,  Nicholas A. Everson ,  Morris Anderson ,  Merle L Sand

IPC: G01K13/02 ,  G01K1/08

Abstract: A total air temperature (TAT) probe having a self-regulating heating system is provided. A TAT probe housing includes at least one heating cavity that is located proximate to a tip of the TAT probe. A heating element is received within the at least one heating cavity. The heating element is composed from a flexible material with a very high positive temperature coefficient (PTC) that provides non-linear resistance with temperature with generally relatively low electrical resistances at temperatures below freezing and relatively high electrical resistances above freezing. A power source is coupled to the heating element. The very high PTC material of the heating element causes less power to be drawn by the heating element from the power source at higher temperatures above freezing than the power drawn by the heating element from the power source at lower temperatures below freezing to maintain a desired temperature of the TAT probe.