|
Match
|
Document |
Document Title |
|
|
6446015 |
Method and apparatus for flight data acquisition using an optimized multiple frequency waveform
The present invention comprises a method and apparatus that generates a waveform consisting of an arbitrary number of frequency sweeps combined from adding and subtracting mini frequency sweeps....
|
|
|
6390412 |
Method and device for assisting the pilot in controlling the turboshaft power and/or rotor speed of heat-propelled helicopters
Helicopter, device, and method of controlling helicopter using a computer, at least one motorized mechanical stop, and a collective pitch lever for controlling flight. The device includes a...
|
|
|
6389334 |
Process and device for automatically supported guidance of aircraft to a parking position and management system therefor
A method and associated device and management system for automatically guiding an aircraft to a parking position in a parking zone. The aircraft is detected by at least one video camera located in...
|
|
|
6366835 |
Height estimating apparatus
Apparatus for estimating a first height ( 1 ) of a vehicle ( 2 ) above a first reference surface ( 3 ), including a system ( 4 ) for determining position, velocity and attitude incorporating at...
|
|
|
6341247 |
Adaptive method to control and optimize aircraft performance
A measurement-based method to control and optimize the performance of an airborne vehicle. The stability and control of the vehicle is modified to induce a response in the airborne vehicle as...
|
|
|
6288380 |
Adaptive body-bending estimator for use with a missile during flight
The adaptive body bending estimator comprises a band pass filter which receives an accelerometer signal from a missile's accelerometer. The band pass filter, which has a bandpass of 25-70 hertz,...
|
|
|
6282466 |
Method of automated thrust-based roll guidance limiting
An improvement to a method of automatic flight using a flight management system is provided. The flight management system includes a lateral navigation (LNAV) control mode in which the flight...
|
|
|
6260796 |
Multi-thrustered hover craft
A feedback control system for a multi-thrusted hovercraft is disclosed. In a hover craft having a plurality of vertically oriented thruster that are controlled by a system that relies on operator...
|
|
|
6259975 |
Flight control system for an aircraft particularly for a helicopter
A flight control system for an aircraft, particularly for a helicopter receives a number of items of information, especially the position of flight control members of said aircraft, and sends,...
|
|
|
6236914 |
Stall and recovery control system
An autopilot controller, for controlling a vehicle traveling in a fluid medium, designed for controlling the vehicle in any one of pre stall, stall and post stall regions. The autopilot controller...
|
|
|
6224021 |
Thrust control apparatus and method for an airplane
In an airplane thrust control apparatus, a control unit (EEC) for controlling the throttle valve opening of an internal combustion engine installed in an airplane and the propeller revolution speed...
|
|
|
6216064 |
Method and apparatus for determining altitude
Methods and apparatus for determining altitude, specifically altitude in an aircraft, and an estimated error of the altitude. The altitude determination preferably uses a first altitude based on...
|
|
|
6189836 |
Model-following control system using acceleration feedback
A feedback system for reducing the effects of destabilizing forces in a vehicle (e.g. helicopter) by utilizing acceleration feedback data sensed by an acceleration sensor located in the vehicle....
|
|
|
6186447 |
Autothrottle retard rate control system
In an autothrottle system having the capability to reduce engine throttle setting from a first position to an idle position, an improvement including calculating a rate of throttle reduction as a...
|
|
|
6173219 |
Method for automatically controlling a vehicle for the lateral avoidance of a fixed zone
A method for laterally avoiding a fixed zone in an aircraft. The contour of the zone to be avoided is modeled by a convex polygon shape. The planned route is located with respect to the modeled...
|
|
|
6161063 |
Method for controlling an aerodyne for the vertical avoidance of a zone
A method of automatically controlling an aircraft to avoid a vertical zone includes several steps. The aircraft first acquires limits of the zone to be avoided. The zone is modeled by a cylindrical...
|
|
|
6126111 |
Emergency flight control system using one engine and fuel transfer
A system for emergency aircraft control uses at least one engine and lateral fuel transfer that allows a pilot to regain control over an aircraft under emergency conditions. Where aircraft...
|
|
|
6102330 |
Emergency multiengine aircraft system for lateral control using differential thrust control of wing engines
An emergency flight control system is disclosed for lateral control using only differential engine thrust modulation of multiengine aircraft having at least two engines laterally displaced to the...
|
|
|
6092007 |
Aircraft course correction for wind and fuzzy logic course intercept profile based upon accuracy and efficiency
An aircraft autopilot system provides a wind correction angle which is added to the desired course to provide commanded heading, the wind correction angle being generated as a proportional and...
|
|
|
6089506 |
Thermal center flight indicator for gliders
A thermal center flight indicator is provided that serves glider pilots who want to gain altitude by circling in thermals. The indicator is activated when entering a thermal, indicating to a pilot...
|
|
|
6076024 |
Earth-referenced wind adjustment for hovering aircraft
In a rotary wing aircraft, longitudinal groundspeed error and lateral groundspeed error are converted to earth coordinates, and the result scaled and integrated, and retransformed into aircraft...
|
|
|
6059225 |
Flight control device for an aircraft, in particular a helicopter
A flight control device for an aircraft is provided with a control unit OP and a plurality of N instruction generating systems, each of which generates a first command instruction for the control...
|
|
|
6012675 |
Aircraft system monitoring air humidity to locate updrafts
An aircraft system intended for gliders and low power-to-weight aircraft, to aid the pilot in locating updrafts associated with the buoyancy of humid air in the convective layer of the atmosphere,...
|
|
|
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...
|
|
|
5921506 |
Extendible leading edge flap
A flight control system comprises trailing edge airfoil members pivotally mounted at the trailing edge of each wing of an aircraft and selectively movable on a laterally extending axis between...
|
|
|
5893040 |
Method and apparatus for automatically providing jet engine thrust ratings to avionic systems
An avionic system (102) in which engine thrust rating data is transmitted from electronic engine controllers (108a and 108b) to flight management computer/thrust management computers (120a and...
|
|
|
5839697 |
Method and apparatus for turn coordination gain as a function of flap position
An improved method and apparatus for determining the amount of turn coordination gain in an aircraft yaw damper during a turn maneuver is disclosed. The yaw damper includes inputs from the inertial...
|
|
|
5815407 |
Method and device for inhibiting the operation of an electronic device during take-off and landing of an aircraft
An apparatus (700) for inhibiting operation of an electronic device (702) during take-off and landing of an aircraft (802) has a sensor (704) that measures a lateral acceleration. A control circuit...
|
|
|
5796612 |
Method for flight parameter monitoring and control
The present invention relates to a method for three-dimensional flight control based generally upon measuring and comparing actual air pressures at or near various surfaces of an aircraft during...
|
|
|
5769359 |
Active feedback loop to control body pitch in STOL/VTOL free wing aircraft
An aircraft control system for controlling an aircraft, particularly a free wing aircraft in low speed or hover regimes. An air speed sensor measures air speed of the aircraft and outputs an air...
|
|
|
5670856 |
Fault tolerant controller arrangement for electric motor driven apparatus
A fault tolerant controller arrangement for electric motor driven apparatus is implemented by a plurality of control channels, each of which includes a motor and associated drive circuitry. The...
|
|
|
5657949 |
Method and apparatus for providing a dynamic thrust asymmetry rudder compensation command with no direct thrust measurement
A method and apparatus for producing a dynamic thrust asymmetry airplane rudder compensation command with no direct thrust measurement is disclosed. An excess thrust estimate based on measured...
|
|
|
5617316 |
Maintaining attitude error constant in Euler singularity protection
A model-following aircraft control system in which a roll rate command in Euler coordinates is integrated to provide a bank angle command, which has actual bank angle subtracted therefrom to...
|
|
|
5613652 |
Aircraft auto throttle system
An auto throttle system for FAYDEC equipped aircraft includes a remote friction element which is separated from a pilot's console. The system also includes an auto throttle control and a manual...
|
|
|
5601256 |
Aircraft stabilizing system
A system for stabilizing an aircraft includes sensors positioned and disposed at predetermined locations on the aircraft and structured for sensing external forces acting on the aircraft at the...
|
|
|
5598991 |
Method and apparatus for detecting oscillatory phenomena indicative of airflow separation
A method and apparatus for detecting oscillatory phenomena indicative of airflow separation or sensor common mode oscillatory failure is disclosed. The oscillations of a differential pressure...
|
|
|
5560570 |
Automatic piloting device for aerodynes
The device embodying the invention uses at least one digital computer receiving information from a set of sensors and controlling actuators acting on the flight control surfaces, the computer...
|
|
|
5553812 |
Inertial velocity command system
A velocity command system is provided with a velocity stabilization mode wherein aircraft flight path referenced velocities are determined with respect to an inertial frame of reference, the flight...
|
|
|
5550736 |
Fail-operational fault tolerant flight critical computer architecture and monitoring method
A flight critical computer system for an aircraft includes dual independent lanes having two processors in each lane. The first lane has a primary processor and a redundant processor and provides a...
|
|
|
5527003 |
Method for in-field updating of the gyro thermal calibration of an intertial navigation system
An in-field method for correcting the thermal bias error calibration of the gyros of a strapdown inertial navigation system. The method is begun after initial alignment while the aircraft remains...
|
|
|
5505410 |
Instrument calibration method including compensation of centripetal acceleration effect
A method and apparatus are provided for addressing the effect of centripetal acceleration upon estimates of cross-track velocity, for determination of east gyro bias error, generated with a taxiing...
|
|
|
5407151 |
Model plane flight control
A device for flight control of a model plane has a plurality of photo cell sensors, preferably, located on the wing tips, nose and tail and connected to a logic circuit inside the body of the...
|
|
|
5406488 |
Correction of errors in autopilots
A system (1) responds to inputs (2) in parallel with a state estimator (4). The controller (6) provides the inputs (2) in response to ordered state inputs (14) and state estimator inputs. An...
|
|
|
5398885 |
Discrete distributed sensors and system for spatial sensing
A sensor has a sensing region that responds to a surface property by producing an output signal. The sensor has a spatially distributed shape or sensitivity so that the output decreases away from a...
|
|
|
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...
|
|
|
5374011 |
Multivariable adaptive surface control
An adaptive sheet structure with distributed strain actuators is controlled by a dynamic compensator that implements multiple input, multiple output control laws derived by model-based, e.g.,...
|
|
|
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...
|
|
|
5274554 |
Multiple-voting fault detection system for flight critical actuation control systems
A control system includes a dual actuator (2) and primary and secondary controllers (20, 22), each of which has two control channels. In a normal mode of operation, the primary controller (20)...
|
|
|
5195700 |
Low speed model following velocity command system for rotary wing aircraft
A helicopter flight control system (21) includes a model following control system architecture which operates in a velocity command mode at low ground speeds. The control system processes...
|
|
|
5186415 |
Aircraft having means for controlling the ground effect flying altitude by sensing air pressure on the surface of the wing
This invention makes use of a pressure sensor, which is installed on the wing's surface of the aircraft, to sense the varied air pressure which comes from ground-effect on the wing's surface. A...
|