公开(公告)号：US20220281587A1

公开(公告)日：2022-09-08

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: B64C13/50

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：US20220219810A1

公开(公告)日：2022-07-14

申请号：US17145920

申请日：2021-01-11

Applicant: Bell Textron Inc.

Inventor： Clifton L. HARRELL ,  Charles Eric COVINGTON ,  David A. ADJEI ,  Kevin Matthew TRENDEL ,  Michael David TRANTHAM ,  Randall JOHNSON

IPC: B64C19/02 ,  G05D1/10

Abstract: In an embodiment, an aircraft includes a pilot input device, a position sensor coupled to the pilot input device, a flight condition sensor and a flight control computer (FCC). The FCC includes a first microprocessor and a second microprocessor. The first microprocessor is configured to receive input data from the position sensor and the condition sensor and determine therefrom a first output. The second microprocessor is configured to receive input data from the position sensor and the condition sensor and determine therefrom a second output. The FCC is configured to compare the first output and the second output to yield resultant data. Responsive to a determination that the first output and the second output do not match, the FCC is configured to execute first remediation logic if the resultant data satisfies first error criteria and to execute second remediation logic if the resultant data satisfies second error criteria.