公开(公告)号：US20190039720A1

公开(公告)日：2019-02-07

申请号：US16030687

申请日：2018-07-09

Applicant: Bell Helicopter Textron Inc.

Inventor： Robert Earl Worsham, II ,  Luke Dafydd Gillett

IPC: B64C13/50 ,  G05D1/04 ,  G05D1/08

Abstract: A rotorcraft having a power train, a rotor system coupled to the power train and comprising a plurality of rotor blades, a flight control system (FCS) operable to change at least one operating condition of the rotor system, a pilot control assembly (PCA) operable to receive commands from a pilot, and a flight control computer (FCC) in electrical communication between the FCS and the PCA. The FCC is operable to receive a pilot command to mark a target, designate a hover location in response to the pilot command to mark the target, receive a pilot command to return to the target, engage an approach-to-hover maneuver in response to the pilot command to return to the target, and transition, in response to engaging the approach-to-hover maneuver, to a second operating condition of the rotor system corresponding to a change in heading, a reduction in airspeed, and a descent in altitude.

公开(公告)号：US20180292841A1

公开(公告)日：2018-10-11

申请号：US15484994

申请日：2017-04-11

Applicant: Bell Helicopter Textron Inc.

Inventor： Christopher Mike Bothwell ,  Sung Kyun Kim ,  Jillian Samantha Alfred ,  Robert Earl Worsham, II ,  Luke Dafydd Gillett ,  Morganne Cody Klein

IPC: G05D1/06 ,  B64C27/06 ,  B64C13/50 ,  B64C27/56 ,  B64C27/605

CPC classification number: G05D1/0607 ,  B64C13/50 ,  B64C13/503 ,  B64C27/06 ,  B64C27/56 ,  B64C27/605 ,  G05D1/0858

Abstract: A rotorcraft including a flight control computer (FCC) providing a vertical speed hold for the rotorcraft, a collective control, and a collective trim motor connected to the collective control. The collective trim motor moves the collective control according to a collective set command generated by the FCC according to a target vertical speed and when the FCC determines the collective control is in-detent. A collective position sensor is connected to the collective control. The collective position sensor generates, and sends to the FCC, a collective position signal indicating the position of the collective control. A flight control device controls a flight parameter of the rotorcraft in response to a flight control device control signal received from the FCC. The FCC generates the flight control device control signal according to the collective position signal, and sends the flight control device control signal to a flight control device.

公开(公告)号：US20180265190A1

公开(公告)日：2018-09-20

申请号：US15464084

申请日：2017-03-20

Applicant: Bell Helicopter Textron Inc.

Inventor： Robert Lee Fortenbaugh ,  Jillian Samantha Alfred ,  Luke Dafydd Gillett

IPC: B64C27/57 ,  B64C27/605 ,  B64C27/82 ,  B64C13/50 ,  G05D1/08

Abstract: In accordance with an embodiment of the present invention, a method of operating a rotorcraft includes operating the rotorcraft in a heading control mode that includes activating a yaw channel path of a heading controller and deactivating a roll channel path of the heading controller when a speed of the rotorcraft is less than a first speed threshold or a heading error is less than a heading error threshold, and activating the roll channel path of the heading controller and deactivating the yaw channel path of the heading controller when the speed of the rotorcraft is greater than a second speed threshold and the heading error is not less than the heading error threshold.