45 results about "Autothrottle" patented technology

An aircraft formation/refueling guidance system guides a follower aircraft relative to a leader aircraft. A datalink provides a position hold and a bias command from the leader aircraft to the follower aircraft. An optical tracker onboard the follower aircraft takes an image of the leader aircraft when receiving the hold command, tracks the leader aircraft using the image, and provides optical tracker movement outputs. A resolver resolves the optical tracker movement outputs to provide resolver control signals. A vernier control receives the bias command to change a position of the follower aircraft by biasing the resolver control signals with a bias signal. A sum circuit connected to the resolver and to the vernier control receives the resolver control signals and the bias signal to provide a sum circuit output signal. An autopilot and autothrottle receives the sum circuit output signal and the position hold command to control the follower aircraft.

Methods and systems are provided for operating a vehicle that supports an automated action, such as an aircraft supporting autopilot, autothrottle, and various other autonomous operations and operating modes. One exemplary method of operating a vehicle involves obtaining one or more user inputs pertaining to an automated action to be performed by an onboard system, obtaining current vehicle status information, determining an operational objective for the automated action based at least in part on the current status information and the one or more user inputs, and providing guidance information pertaining to the automated action in a manner that is influenced by the operational objective and the current status information. For example, the guidance information may include indication of a remedial action to resolve a discrepancy between the operational objective and a projected aircraft behavior in the context of the operational objective or the current vehicle status.

An autothrottle system for an aircraft includes a motor, actuator assembly, and position sensor operatively connected between the motor and a moving portion of the actuator assembly. An electronic controller is configured to control the motor to move the actuator assembly to actuator positions based at least on position information from the position sensor to move the throttle lever to lever positions.

A system and method are provided for controlling the airspeed of an aircraft. A plurality of recommended airspeeds are initially determined based upon different objectives. The recommended airspeeds may be based upon various objectives including: (1) delivery of the aircraft to its destination within a predefined arrival window; (2) maximization of the fuel efficiency of the aircraft during the flight; and (3) reduction in the passenger's perceptibility of airspeed changes of the aircraft. Based upon the different objectives taken in view of the current flight conditions, a resulting airspeed is determined from the plurality of recommended airspeeds. As each objective may suggest a different recommended airspeed, the system and method may compromise between the various objectives based upon the current flight conditions so as to define the resulting airspeed. The resulting airspeed may then be applied to the auto-throttle of the aircraft.

The present invention provides an alternative to the auto-throttle integrated in an aircraft autopilot by restricting the conditions in which the system operates. The proposed system removes the auto-throttle function from the autopilot system and gives it directly to the Full Authority Digital Engine Control (FADEC). A Cruise Control mode is available to the pilot only under stable flight conditions.

The invention discloses a shipboard aircraft ski-jump take-off automatic flight control method. According to the method, a longitudinal automatic flight control system, a lateral automatic flight control system and an automatic throttle control system are adopted to control the ski-jump take-off and flight of a shipboard aircraft. The method comprises the step of taking a damper and a stability augmentation system as an inner loop to generate and transfer a vertical climb speed instruction to ensure that the vertical speed of the shipboard aircraft can be automatically tracked and stable, and can be used for effectively suppressing and eliminating the lateral deviation and sideslip angle, so that the shipboard aircraft can keep lateral stability and can safely take off from an aircraft carrier. The method is based on a PID control method and is simple in realization process and stable in control process. Simulation experiments prove that the shipboard aircraft ski-jump take-off automatic flight control method has the advantages of well enabling the shipboard aircraft to automatically flying at a given vertical climbing speed after ski-jump to take off, ensuring that the shipboard aircraft can safely take off from the aircraft carrier and lightening the operation pressure of the driver.

An autothrottle for an aircraft that includes a power-control input (PCL) manually movable by a pilot along a travel path to effect a throttle setting that controls engine power of the aircraft. The autothrottle determines a control-target setting for a throttle of the aircraft and dynamically adjusts the throttle according to the control-target setting, including moving the PCL to achieve the control-target setting. A virtual detent is set and dynamically adjusted at positions along a travel path of the PCL corresponding to the control-target setting. The virtual detent is operative, at least when the autothrottle is in a disengaged state for autothrottle control, to indicate the control-target setting to the pilot via a haptic effect that applies a detent force opposing motion of the PCL in response to the PCL achieving the position of the virtual detent.

The invention relates to a special executive component for a range transmission automobile manual semi-automatic dual-purpose drive control system. The special executive component mainly comprises a dual-purpose drive switching device, an automatic accelerator, a hand brake, a selected track, a shifting gear and a clutch executive component device. The output end of a sensor of each executive component is connected with the input end of the system, the output end of the system is connected with the input end of a direct-current stepping motor driver or a relay, the output end of the driver or the relay is connected with a fire wire and an earth wire of a direct-current motor of each executive component, the automatic accelerator, the hand brake, the selected track, the shifting gear and the output shaft of a direct-current stepping motor of the executive component or a direct-current motor with a gear reducer are connected with a ball screw in a machine body through a coupler, flange sleeve screw holes on the ball screw are connected with one ends of hose steel wire ropes of each executive component respectively, a gear on a spindle of a direct-current motor with a worm reducer of an automatic clutch is connected with one end of a chain, the special executive component which moves automatically under the regulation and control of an electronic control unit (ECU) of the system is composed, and the special executive component is simple and general in structure and saves oil and energy.

An energy protection device includes a plurality of sensors that detect a triggering situation requiring an energy protection and a control unit that actuates an energy protection function when the triggering situation is detected and also activates an autothrottle. When the control unit begins the energy protection function, an original engagement state of the autothrottle before the triggering is stored. Thus, when the aircraft returns to an operational flight domain not requiring the energy protection function, the control unit stops the energy protection function and sets an engagement state of the autothrottle based on the stored original engagement state.

Herein provided are methods and systems for a method for controlling autothrottle of an engine. A digital power request is obtained from an autothrottle controller, the digital power request based on an autothrottle input to the autothrottle controller. A manual input mode for the engine is terminated, the manual input mode based on a second power request obtained from a manual input associated with the engine. An autothrottle mode for the engine is engaged to control the engine based on the digital power request.

A throttle control system that is compensated for mountain wave conditions includes an auto throttle computer and a detector for detecting the pitch or pitch angle of the aircraft. The computer is used for determining the rate of change of pitch i.e. the first derivative of pitch angle and the rate of change of the rate of change of pitch i.e. the second derivative for generating a signal indicative of the rate of change of the rate of change of pitch. The signal from the auto throttle computer is combined with the signal from the signal indicative of the second derivative to produce a combined signal which is fed to a servo assemble and motor for adjusting the throttle of an aircraft.

The invention discloses a hysteresis damper with high damping torque density, and belongs to the technical field of aviation automatic control. The defect that the damping torque stability of a contact type damper is not ideal is overcome. The high-damping torque density hysteresis damper is composed of a stator assembly and a rotor assembly, the stator assembly fixes a left end cover assembly anda right end cover assembly in a shell through screws, the rotor assembly penetrates into the stator assembly through a left bearing and a right bearing of a shaft, and damping torque is generated when the rotor assembly and the stator assembly rotate relatively. Structural connection and torque transmission functions are provided for electromechanical products such as an automatic accelerator actuating mechanism, an electric steering engine and an accelerator console, the stability of the damping device can be greatly improved, the service life of the damping device can be greatly prolonged,and the damping torque density is higher than that of similar products at home and abroad.