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公开(公告)号：US20190248482A1
公开(公告)日：2019-08-15
申请号：US15892558
申请日：2018-02-09
Applicant: Bell Helicopter Textron Inc.
Inventor： Luke Dafydd Gillett
Abstract: A rotorcraft including a main rotor, flight controls connected to the main rotor the main rotor, a plurality of engines connected to the main rotor and operable to drive the main rotor, a main rotor revolutions per minute (RPM) sensor, and a monitoring system operable to determine an engine failure of the plurality of engines. The monitoring system is further operable to engage an automated autorotation entry assist process in response to at least determining the engine failure and according to the measured main rotor RPM, where the automated autorotation entry assist process comprises the monitoring system generating one or more rotor RPM related commands according to at least a target main rotor RPM and the measured main rotor RPM, where the automated autorotation entry assist process further comprises controlling the one or more flight controls according to the one or more rotor RPM related commands.
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公开(公告)号：US20190161182A1
公开(公告)日：2019-05-30
申请号：US15962889
申请日：2018-04-25
Applicant: Bell Helicopter Textron Inc.
Inventor： Jillian Samantha Alfred , Luke Dafydd Gillett , Bradley Don Linton , Robert Earl Worsham, II
Abstract: A rotorcraft including a control element, a control sensor connected to the control element, where the control sensor is operable to generate trim data indicating a displacement of the control element in relation to a trim position of the control element, and a flight control computer (FCC) operable to monitor the trim data and determine an active detent state of the control element. The active detent state is one of an in-detent state, an out-of-detent state, and an in-transition state. The FCC is operable to buffer a transition of the active detent state from the in-detent state to the out-of-detent state using the in-transition state. The FCC provides a first flight management function when the active detent state is the in-detent state or the in-transition state, and provides a second flight management function when the active detent state is the out-of-detent state.
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公开(公告)号：US20190056734A1
公开(公告)日：2019-02-21
申请号：US16032928
申请日：2018-07-11
Applicant: Bell Helicopter Textron Inc.
Inventor： Robert Earl Worsham, II , Luke Dafydd Gillett , Troy Sheldon Caudill , Bradley Paul Regnier , Joshua Robert O'Neil , Brandon Jeffrey Thomas
Abstract: In an embodiment, a rotorcraft includes a rotor system including a plurality of blades; two or more engines operable to rotate the plurality of blades; a control assembly operable to receive commands from a pilot; a flight control computer (FCC) in signal communication with the two or more engines, the FCC being operable to generate engine data indicating whether the two or more engines are functional; and a flight management system (FMS) in signal communication with the control assembly and the FCC, the FMS being operable to receive a takeoff type and a plurality of takeoff parameters input into the FMS by the pilot; generate a guidance profile for a Category A (Cat-A) takeoff procedure based on the takeoff type and the plurality of takeoff parameters, the Cat-A takeoff procedure including one or more decision points for performing a takeoff procedure based on whether all engines are operable or one engine is inoperable; receive a command to engage in a takeoff procedure from the control assembly; in response to the command to engage in the takeoff procedure, provide guidance cues to a pilot of the rotorcraft; receive the engine data from the FCC during operation of the rotorcraft; and update the guidance profile based on the engine data during operation of the rotorcraft.
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公开(公告)号：US20190055004A1
公开(公告)日：2019-02-21
申请号：US15679645
申请日：2017-08-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Luke Dafydd Gillett
Abstract: A method for operating a rotorcraft includes providing a power hold by performing monitoring one or more operational parameters of the rotorcraft during flight, determining whether operational parameters need adjustment according to a relationship between the operational parameters and operating limits associated with a power setting for the power hold, and determining a flight parameter for one or more flight control devices of the rotorcraft in response to determining that the operational parameters need adjustment. Providing the power hold further includes sending a position set signal to a trim assembly of the rotorcraft to set a first position of a pilot control connected to the trim assembly according to a pilot control setting generated according to the flight parameter, and controlling a flight control device control according to a second position of the pilot control.
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公开(公告)号：US20180215460A1
公开(公告)日：2018-08-02
申请号：US15422886
申请日：2017-02-02
Applicant: Bell Helicopter Textron Inc.
Inventor： Robert Worsham , Luke Dafydd Gillett
CPC classification number: B64C13/503 , B64C13/04 , B64C27/06 , B64C27/82 , G05D1/085 , G05D1/0858
Abstract: A fly-by-wire system for a rotorcraft includes a computing device having control laws. The control laws are operable to engage a level-and-climb command in response to a switch of a pilot control assembly being selected. The level-and-climb command establishes a roll-neutral (“wings level”) attitude with the rotorcraft increasing altitude. The switch may be disposed on a collective control of the pilot control assembly (e.g., a button on a grip of the collective control). Selection of the switch may correspond to a button depress. The level-and-climb command may include a roll command and a collective pitch command. One or more control laws may be further operable to increase or decrease forward airspeed in response to pilot engagement of the level-and-climb command. The level-and-climb command may correspond to a go-around maneuver, an abort maneuver, or an extreme-attitude-recovery maneuver to be performed by the rotorcraft.
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Patent Agency Ranking
公开(公告)号：US20190369647A1
公开(公告)日：2019-12-05
申请号：US15996132
申请日：2018-06-01
Applicant: Bell Helicopter Textron Inc.
Inventor： Luke Dafydd Gillett , Sung Kyun Kim , Robert Earl Worsham, II
IPC: G05D1/08
Abstract: In an embodiment, a rotorcraft includes: a flight control computer configured to: receive a first sensor signal from a first aircraft sensor of the rotorcraft; receive a second sensor signal from a second aircraft sensor of the rotorcraft, the second aircraft sensor being different from the first aircraft sensor; combine the first sensor signal and the second sensor signal with a complementary filter to determine an estimated vertical speed of the rotorcraft; adjust flight control devices of the rotorcraft according to the estimated vertical speed of the rotorcraft, thereby changing flight characteristics of the rotorcraft; and reset the complementary filter in response to detecting the rotorcraft is grounded.
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公开(公告)号：US20190369645A1
公开(公告)日：2019-12-05
申请号：US15991369
申请日：2018-05-29
Applicant: Bell Helicopter Textron Inc.
Inventor： Robert Earl Worsham, II , Luke Dafydd Gillett
Abstract: A method for controlling a rotorcraft, including receiving, by a fly-by-wire (FBW) system of the rotorcraft, a pilot input that initiates an automated descend-to-hover flight mode, scheduling, by the FBW system, a descend plane for bringing the rotorcraft to a hover, and autonomously descending and decelerating the rotorcraft according to the descend plane in response to determining that the rotorcraft has entered the automated descend-to-hover flight mode and until the rotorcraft reaches a hover or the rotorcraft exits the automated descend-to-hover flight mode.
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公开(公告)号：US10479491B2
公开(公告)日：2019-11-19
申请号：US15679645
申请日：2017-08-17
Applicant: Bell Helicopter Textron Inc.
Inventor： Joseph M. Schaeffer , Luke Dafydd Gillett
Abstract: A method for operating a rotorcraft includes providing a power hold by performing monitoring one or more operational parameters of the rotorcraft during flight, determining whether operational parameters need adjustment according to a relationship between the operational parameters and operating limits associated with a power setting for the power hold, and determining a flight parameter for one or more flight control devices of the rotorcraft in response to determining that the operational parameters need adjustment. Providing the power hold further includes sending a position set signal to a trim assembly of the rotorcraft to set a first position of a pilot control connected to the trim assembly according to a pilot control setting generated according to the flight parameter, and controlling a flight control device control according to a second position of the pilot control.
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公开(公告)号：US20190265729A1
公开(公告)日：2019-08-29
申请号：US15905349
申请日：2018-02-26
Applicant: Bell Helicopter Textron Inc.
Inventor： Luke Dafydd Gillett
Abstract: An embodiment rotorcraft includes a main rotor, one or more flight controls connected to the main rotor and operational to control flight characteristics of the main rotor by pitching a nose of the rotorcraft upward, and a flight control computer (FCC) operable to determine an attitude command and to generate an adjusted attitude command by adjusting a magnitude of the attitude command according to an above ground level (AGL) altitude of the rotorcraft. The FCC is further operable to control a flight characteristic of the rotorcraft by sending the adjusted attitude command to one or more flight controls.
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20.发明申请公开(公告)号：US20190161180A1
公开(公告)日：2019-05-30
申请号：US15983752
申请日：2018-05-18
Applicant: Bell Helicopter Textron Inc.
Inventor： Charles Eric Covington , Bradley Don Linton , Thomas Earl Johnson, JR. , Luke Dafydd Gillett , Robert Earl Worsham, II , Jillian Samantha Alfred
Abstract: An rotorcraft including a pilot control, a pilot control position sensor connected to the pilot control and operable to generate a position signal indicating a position of the pilot control, a flight control computer (FCC) in signal communication with the pilot control position sensor and operable to provide a tactile cue in the pilot control in response to the position signal indicating the position of the pilot control exceeds a threshold associated with an operating limit, and further operable to determine a tactile cueing value for the tactile cue according to a relationship between the position of the pilot control and the threshold, and generate a cue control signal according to the tactile cueing value, and a tactile cue element connected to the pilot control and in signal communication with the FCC and operable to control action of the pilot control in response to the cue control signal.
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