B64C13/0421

COCKPIT INCEPTOR SYSTEM
20210291963 · 2021-09-23 ·

An aircraft inceptor system includes an inceptor member arranged to be operated by a user to cause a corresponding movement of a moveable aircraft surface. The system also includes means for detecting the operation of the inceptor member by the user and for providing a movement signal, associated with the detected operation, to a flight control computer, the flight control computer providing a control signal to an actuator to move the aircraft surface according to the movement signal. The means for detecting the operation of the inceptor member by the user comprises a force sensor configured to sense the force applied by the user to the inceptor member, the movement signal being derived based on the sensed force.

Compactly mounted cyclic flight control for rotorcraft
11130567 · 2021-09-28 · ·

Systems and methods for compactly mounted cyclic flight control for a rotorcraft. One embodiment is an apparatus that includes a stick base assembly coupled with a cyclic stick and configured to rotate with respect to a mounting frame to control a pitch and a roll of the rotorcraft. A cyclic housing is pivotably coupled with the mounting frame for rotation about a pitch axis to control pitch, and coupled with a pitch actuator having a pitch force sensor to measure its resistance to rotation. The cyclic housing supports the stick base assembly for independent rotation of the stick base assembly about a roll axis to control roll, and the stick base assembly couples with a roll actuator having a roll force sensor to measure its resistance to rotation.

Decoupled hand controls for aircraft with vertical takeoff and landing and forward flight capabilities

Hand controls for an aircraft, including a single axis hand control which is configured to control movement of an aircraft along a vertical axis where the aircraft includes a plurality of rotors that are attached to the aircraft at a fixed position and the plurality of rotors rotate independently of one another. The hand controls further include a three axis hand control which is configured to control movement of the aircraft within a plane defined by a roll axis and a pitch axis, as well as about a yaw axis.

METHOD AND A SYSTEM FOR PROVIDING A ROTORCRAFT WITH ASSISTANCE IN TAKING OFF
20210171190 · 2021-06-10 · ·

A method and a system for providing a rotorcraft with assistance in taking off from a slope. The rotorcraft includes at least one lift rotor provided with a plurality of blades, control devices for controlling the pitches of the blades, and landing gear provided with at least three ground contact members. The method comprises a step of measuring a piece of information relating to the forces to which each ground contact member is subjected during a landing phase for landing on the slope, a step of measuring at least one piece of information relating to the pitches of the blades during the landing phase, and a control step for controlling the pitches of the blades during the takeoff phase during which the rotorcraft takes off after the landing as a function of the measurements taken during the landing in order to enable a takeoff to be performed that is safe and simplified.

SYSTEMS AND METHODS FOR CONTROLLING A RESISTIVE FORCE OF AN INCEPTOR OF AN AIRCRAFT
20210197958 · 2021-07-01 ·

Methods and systems for adjusting a force feel profile of an inceptor of an aircraft are provided. The force feel profile is based on a baseline value of an operating parameter of the aircraft and defines an amount of resistive force applied to the inceptor as a function of displacement of the inceptor. An embodiment of the method includes receiving data indicative of a current value of the operating parameter. Based on a difference between the current value and the baseline value of the operating parameter, a portion of the force feel profile corresponding to a range of displacement values is shifted to adjust an amount of resistive force defined by the portion of the force feel profile for the range of displacement values.

FORCE SENSOR ASSEMBLY

A force sensor, flexible sensing element, and method for the force sensor are disclosed. The force sensor uses a flexible sense element with two flexible arms dedicated to measuring strain related to a pitch force and two flexible arms dedicated to measuring strain related to roll force. The use of two channels for each measurement provides a command lane and a monitor lane for strain measurements. Strain gauges are disposed on both the top and the bottom surfaces of each arm, thus providing two completely redundant systems. When a failure is detected in one of the systems, the redundant system can be implemented.

Interconnected sidesticks for fly-by-wire flight control

An interconnected flight controller for an aircraft includes a mechanical linkage connecting a pilot interface with a copilot interface. When an input is provided to either of the pilot or copilot interfaces, coordinated motion is provided between them of a proportional magnitude and direction. A mechanical-disconnect element within the mechanical linkage is adapted to actuate mechanical decoupling between the pilot interface and the copilot interface. One or more sensors is coupled to the mechanical linkage to sense inputs and communicate the inputs to a fly-by-wire flight controller. An autopilot servo is coupled to the mechanical linkage for providing autopilot control or feedback and a force-feedback subsystem is connected to the mechanical linkage to simulate and apply an opposing force of aircraft control surfaces to the pilot interface and the copilot interface.

Aircraft hand controller with decoupled throttle
10967952 · 2021-04-06 · ·

An aircraft hand controller is disclosed. The hand controller includes a set of finger controls on a single hand grip structure, the set of finger controls including a first finger control configured to control throttle of the aircraft and a second finger control, separate from the first, configured to control rotation about a first rotational axis of the aircraft.

Combined active stick and control boost actuator system
10967953 · 2021-04-06 · ·

A combined active stick and control boost actuator system for a control surface has a control stick engaged to a mechanical flight control structure with a linkage configured to move a control surface. A mechanical interconnect engages the linkage and has a control stick connection. An integrated actuator is separably connected to the mechanical interconnect intermediate the control stick connection and the linkage. A stick force sensor is configured to provide a stick force signal. A flight control system receives the stick force signal and provides an actuator position control signal to the integrated actuator. The integrated actuator moves to a prescribed position in accordance with a force feel profile providing pilot variable tactile cueing and power boost to reduce both fatigue and workload.

System and method for mitigating an effect of an excitation of a structural flexible mode of an aircraft
11845537 · 2023-12-19 · ·

Systems and methods for controlling a fixed-wing aircraft during flight are disclosed. The aircraft comprises first and second flight control surfaces of different types. The method comprises determining that a pilot command of the first flight control surface will excite a structural flexible mode of the aircraft and then executing the pilot command of the first flight control surface in conjunction with a command of the second flight control surface to mitigate the effect of the excitation of the structural flexible mode of the aircraft.