公开(公告)号：US10657735B2

公开(公告)日：2020-05-19

申请号：US15728159

申请日：2017-10-09

Applicant: Textron Innovations Inc.

Inventor： Brian Edward Tucker ,  Matthew Curtis Ledbetter

IPC: G07C5/00 ,  B64D45/00 ,  B64F5/60 ,  G07C5/08 ,  G05B23/02

Abstract: A system for adaptable trend detection for component condition indicator data includes a sensor operable to measure an operating condition of a vehicle and generate a sensor signal associated with the operating condition and a data server operable to acquire a current condition indicator of a condition indicator set according to the sensor signal, and to determine whether a trend in the condition indicator set is indicated according to at least the current condition indicator, at least one previous condition indicator of the condition indicator set and a volatility of at least a portion of the condition indicator set. The data server is further operable to provide an alert in response to determining that the trend is indicated.

公开(公告)号：US11568292B2

公开(公告)日：2023-01-31

申请号：US16912626

申请日：2020-06-25

Applicant: Textron Innovations Inc.

Inventor： Matthew Curtis Ledbetter ,  Silvio Mario Lopez ,  Drew Franklin Waller

IPC: G06N7/00 ,  G06K9/62 ,  G06F17/18 ,  B64C27/04

Abstract: In an embodiment, a method includes acquiring a current condition indicator of a condition indicator set associated with an operating condition of a machine, the condition indicator set indicating sensor readings associated with an operating element of the machine under the operating condition. The method also includes determining, by a data server, a relative trend significance over a trend window of the condition indicator set based, at least in part, on an evaluation of the trend window in relation to a historical window of the condition indicator set. The method also includes determining, by the data server, whether trend criteria associated with the operating element is satisfied, where the trend criteria may include criteria related to the relative trend significance. The method also includes executing, by the data server, an alerting process in response to the determining that the trend criteria is satisfied.

公开(公告)号：US11235870B2

公开(公告)日：2022-02-01

申请号：US16022375

申请日：2018-06-28

Applicant: Textron Innovations Inc.

Inventor： Mark Adam Wiinikka ,  Matthew Curtis Ledbetter

IPC: B64C27/32

Abstract: A rotorcraft having a rotor system including a yoke, a plurality of grip assemblies, each of which is hingedly attach a rotor blade to the yoke, a plurality of flap stops, each flap stop attached to a respective grip assembly, a channel bounded by an upper and lower retaining surfaces, and a droop ring slideably disposed in the channel of the droop limiting system. The droop ring has a body with an inner surface, an outer surface, and a first end surface between the inner surface and the outer surface. The droop ring further has a first wear element removably disposed at the first end surface and extending above the first end surface and spaces the first end surface apart from the channel. Each flap stop is arranged to contact the outer surface of the droop ring and limit a downward droop of the respective rotor blade.