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7626514 |
Systems and methods for reducing nuisance alerts for helicopter enhanced ground proximity warning systems
Systems and methods for controlling activation of a look-ahead function of a terrain alert and warning system. The system receives rate of climb and aircraft speed information, compares the rate of...
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7571045 |
Control system for gas-turbine engine
In a gas-turbine engine control system having a first control channel inputting the outputs of sensors to calculate and output a first command value indicative of a quantity of fuel to be supplied...
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7512464 |
System and method for controlling the speed of an aircraft
A system and method are disclosed for controlling the speed of an aircraft having a preprogrammed speed profile when transitioning from a manually set target speed to the preprogrammed speed...
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7437237 |
Positioning control apparatus and the method
A positioning control apparatus including feedback loops according to a plurality of control modes which control positioning of an object to be controlled is provided, in which the positioning...
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6989769 |
Safety index
A method and system is utilized to produce an output corresponding to a safety level, particularly in relation to an activity on a moving body. The method involving producing an output...
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6886786 |
Engine thrust management—new design architecture
An engine thrust management system comprising an engine control device, an aircraft flight manual, a flight management device and a cockpit instrument device. The engine control device is operable...
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6819266 |
System and method for reducing the speed of an aircraft
An aircraft system for reducing the airspeed of an aircraft as it passes through a preselected altitude includes an automatic throttle system including a computer, a device for inputting a...
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6643568 |
System for automatically controlling lift-augmentation devices of an aircraft during take-off
A system for automatically controlling lift augmentation devices of an aircraft, during a phase of take-off by the aircraft, includes a controllable actuator that shifts the lift-augmentation...
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6571171 |
Method and apparatus for graphically inserting waypoints for a flight management system
An apparatus and method for inserting a waypoint into a preexisting flight plan which includes selecting a waypoint on a graphical display of a portion of the flight plan and automatically...
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6507782 |
Aircraft control system for reaching a waypoint at a required time of arrival
The instant invention provides a system and method for controlling the flight of an aircraft to meet an RTA. The system comprises a speed profile generator that communicates with a trajectory...
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6450456 |
Airborne safe landing power control system and method
An airborne power control system for automatically controlling the power of an aircraft during landing is disclssed. The system includes a computer and a minimum airspeed program as a function of...
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6062513 |
Total energy based flight control system
In a method of flight control in which a thrust command is computed based on the total aircraft energy error relative to flight path and speed control commands, and an elevator command is computed...
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6061612 |
Aircraft flight management system
A process for managing air speed of an aircraft in flight. The method includes a first step of determining a point on the flight path at which it is theoretically possible to comply with a required...
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5995880 |
Method and device for detecting vertical gusts of wind and application thereof to the pitch-attitude control of an aircraft
An apparatus and method for detecting vertical gusts of wind on board an aircraft in cruising flight is disclosed. The method includes the steps of: calculating an absolute value (│α-θ│) of a...
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5884870 |
Device for maintaining the speed of an aircraft within a particular speed range
An automatic device for maintaining an aircraft at an authorized speed compatible with the technical capabilities of the aircraft includes: a system for comparing the effective speed of the...
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5836546 |
Autopilot/flight director underspeed protection system
An underspeed protection system for an aircraft under autopilot control selects a target speed based upon the greater of a minimum maneuver speed and a stick shaker speed. The system then compares...
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5833177 |
Autopilot/flight director overspeed protection system
An aircraft overspeed protection system produces proportional and integral commands for input to an autopilot controlling the aircraft. The proportional and integral commands are produced by...
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5765777 |
STOL/VTOL free wing aircraft with variable pitch propulsion means
A VTOL/STOL free wing aircraft includes a free wing having wings on opposite sides of a fuselage connected to one another respectively for free rotation about a spanwise access. Improved control...
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5715162 |
Correlative filter for a synchrophaser
A synchrophaser for a multi-engine, propeller-driven aircraft including a filter that automatically compensates for misalignment of blade position sensor tabs through derivation and application of...
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5641136 |
Combat agility management system
A flight control system that provides energy management for an aircraft. The flight control system includes an energy control system which generates a first error signal that is a function of an...
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5528119 |
Method and apparatus for phase compensation in a vehicle control system
The present invention relates to a method and a device for executing phase compensation in a control system of a motor-driven vehicle, in which the time derivative for an output signal (y) from a...
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5502364 |
Aircraft automatic throttle forward stop servo system and method
An aircraft automatic throttle system is responsive to a throttle command signal to drive the aircraft throttle through a clutch and detent mechanism which allows for pilot override. Full throttle...
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5408413 |
Apparatus and method for controlling an optimizing aircraft performance calculator to achieve time-constrained navigation
A Flight Management System for aircraft whereby time-constrained flight can be achieved while maintaining predetermined input parameters selected for minimizing cost of flight, wherein arbitrary...
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5386954 |
Aircraft flight process when maintaining the speed by action on the elevator
Process for flying an aircraft in the "elevator speed maintenance mode" during altitude changes, in which for acquiring and/or maintaining a nominal speed it is supplied to the flight computer at...
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5365446 |
System for integrated pitch and thrust control of any aircraft
A system for integrated pitch and thrust control of an aircraft. The system includes a calculation device which receives the first to sixth electrical signals, together with the tenth electrical...
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5330131 |
Engines-only flight control system
A backup flight control system for controlling the flightpath of a multi-engine airplane using the main drive engines. The backup flight control system comprises an input device for generating a...
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5314147 |
Helicopter engine speed enhancement during heavy rotor load and rapid descent rate maneuvering
A helicopter engine speed reference (66) is increased (117,118) in response to heavy rotor loading (102) in excess of a threshold at the current descent rate (FIG. 4 ). The reference speed is faded...
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5301112 |
Transient free synchronizer for autopilot systems
A transient free synchronizer stores an input trim signal value on command, and provides an output signal value which transitions in a smooth, continuous manner, when the synchronizer is commanded...
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5299765 |
Apparatus and methods for controlling aircraft thrust during a climb
A controller for automatically controlling aircraft thrust during a noise abatement climb operates so as to smoothly reduce aircraft thrust during a reduction in aircraft climb angle at the noise...
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5265825 |
Helicopter engine control having yaw input anticipation
A helicopter engine fuel control anticipates sudden changes in engine power demand during yaw inputs to thereby minimize engine and main rotor speed droop and overspeed during yaw maneuvers. The...
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5265826 |
Helicopter engine control having lateral cyclic pitch anticipation
A helicopter engine fuel control anticipates changes in main rotor torque in response to lateral cyclic pitch commands, to thereby minimize engine and main rotor speed droop and overspeed during...
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5121325 |
Required time of arrival (RTA) control system
A required time of arrival (RTA) control system (200, 220, 240) is disclosed for use with an aircraft on-board computer system (100). The control system (200, 220, 240) is adapted to provide data...
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5078345 |
Automated approach speed control for an airplane
A flight control system of a turboprop airplane includes electronic controlled engines, which are governed by a manual operating device for setting the engine power in order to obtain a certain...
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5079711 |
Aircraft high altitude vertical flight path and speed control system
A variable bandwidth factor KALT is applied in a total energy control system to obtain a reduction in throttle activity while maintaining system stability. The system has a total energy control...
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5056027 |
Apparatus and method for a smooth transition between calibrated airspeed control of an aircraft and Mach number control of an aircraft
Apparatus and an associated method are described for an aircraft for providing an auto-changeover procedure from a calibrated airspeed control parameter to a Mach number control parameter when the...
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5031102 |
Method and apparatus for aircraft pitch and thrust axes control
An aircraft automatic or semiautomtic vertical path control system which coordinates operation of pitch and engine thrust control systems to transfer speed control from one system to the other...
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5023797 |
Range maximizing, stable, helicopter cruise fuel conservation
The reference speed for a helicopter engine is incremented or decremented (237, 239) in dependence upon whether a specific range (miles per unit of fuel) has increased or decreased (236a) in a...
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4998202 |
Helicopter, high rotor load speed enhancement
A helicopter engine speed reference (66) is increased (113, 103-105) in response to heavy rotor loading (108). The reference speed is faded up (113, 104) at a rather rapid rate to 107% of rated...
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4912642 |
Coordinated engine autothrottle
An integrated engine control-autothrottle control system for controlling changes in the thrust of a jet aircraft engine during transients (i.e., changes in speed) in a manner that prevents throttle...
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4863120 |
Optimal flight guidance for aircraft in windshear
An aircraft guidance system for optimizing the flight path of an aircraft in the presence of a windshear maximizes the time the aircraft remains in the air and the distance traveled regardless of...
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4827417 |
Control method for optimizing exploitation costs of an engine aerodyne such as aircraft in the climb phase
There is proposed a method of controlling an engine aerodyne in the climb phase, wherein a velocity variation law as a function of altitude is imposed. Moreover, there is set a law of variation of...
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4818992 |
Excessive altitude loss after take-off warning system for rotary wing aircraft
A warning system for rotary wing aircraft compares the accumulated altitude loss after take-off of the aircraft with its altitude above ground, and generates a warning if the altitude loss is...
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4797674 |
Flight guidance system for aircraft in windshear
Method and apparatus for commanding an optimal flight path for an aircraft encountering a windshear condition. An airspeed rate signal equal in magnitude and opposite in sense to the windshear is...
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4774670 |
Flight management system
An improvement to a Flight Management System (FMS) for an aircraft is described. The improvement comprises: a system coupled to the flight management system for accepting flight data information,...
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4767085 |
Synthetic speed stability flight control system
A synthetic speed stability subsystem for maintaining the speed and phugoid stability of an inherently unstable aircraft is connected to a main flight control system. The speed stability subsystem...
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4764872 |
Vertical flight path and airspeed control system for aircraft
An aircraft control system that simultaneously controls vertical speed (or flight path angle) and airspeed or Mach number by supplying the vertical speed (or flight path angle) command to the...
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4740899 |
Use of headwind and airspeed to achieve a transition to a hover in a helicopter or vtol aircraft
An improved system and technique is disclosed which enables an aircraft control system to bring an aircraft to hover with no direct measurement of ground speed. The system includes a device for...
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4728951 |
Vertical windshear detection for aircraft
The invention provides for rapid response and reliable detection of vertical windshear during the takeoff and approach phases of flight. Standard instrumentation available on many aircraft is used...
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4672548 |
Speed capture in climb for aircraft
An improved method for the automatic acceleration of an aircraft to a preselected speed is described. At any point in the climb portion of flight, a capture of a computed altitude that is increased...
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4645141 |
Automatic flight control system
There is disclosed a system and technique which enables an aircraft (helicopter or VTOL) to be more easily controlled for maintaining precise position or velocity in a hover condition. The system...
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