公开(公告)号：US11628928B2

公开(公告)日：2023-04-18

申请号：US17191075

申请日：2021-03-03

Applicant: Bell Textron Inc.

Inventor： Clifton L. Harrell ,  Christos Bais ,  Curtis R. Higgens ,  Thomas Earl Johnson, Jr. ,  David Adjei

IPC: B64C13/00 ,  B64C13/50

Abstract: In an embodiment, a method of monitoring force equalization (FEQ) sensors on a vehicle utilizing redundant actuation systems for one or more control surfaces includes determining, via a force sensor, a first measured force applied by a first actuation system in relation to a control surface, where the control surface is redundantly serviced by a plurality of actuation systems that include the first actuation system. The method also includes updating a measured-force time series for the first actuation system with the first measured force. The method also includes determining variation in at least a portion of the measured-force time series responsive to the updating. The method also includes identifying a first static condition in the measured-force time series in response to a determination that the variation in the measured-force time series is no greater than a minimum amount of variation.

公开(公告)号：US11745858B2

公开(公告)日：2023-09-05

申请号：US17191040

申请日：2021-03-03

Applicant: Bell Textron Inc.

Inventor： Clifton Harrell ,  Christos Bais ,  Curtis R. Higgens ,  Thomas Earl Johnson, Jr. ,  David Adjei

IPC: B64C13/50 ,  B64D45/00 ,  B64C27/00

CPC classification number: B64C13/506 ,  B64C13/503 ,  B64C13/505 ,  B64C27/006 ,  B64D45/00 ,  B64D2045/0085

Abstract: In an embodiment, a method of managing force equalization (FEQ) on a vehicle utilizing redundant actuation systems for one or more control surfaces includes determining, via a force sensor, a measured force applied by a first actuation system in relation to a control surface, where the control surface is redundantly serviced by a plurality of actuation systems. The method also includes updating a measured-force time series for the first actuation system with the measured force. The method also includes analyzing movement over at least a portion of the measured-force time series. The method also includes identifying a force-fight cycle in the measured-force time series. The method also includes indicating the force-fight cycle in cumulative force-fight cycle data for the first actuation system.