The Boeing Company

Other

Benjamin David Levine

Steven Barry Krogh

Eugene Lavretsky

Kevin Andrew Wise

William Milo Bresley

Tristan C Flanzer

Jasmine Beth Minteer-Levine

Ryan L Pettit

Ian M Conner

Willis J Belfield

Ross Gadient

Nikos Damian Mills

Megan Mcmahon

Methods, apparatus, and articles of manufacture for observer-based landing control of a vehicle are disclosed. An example apparatus includes at least one memory, and at least one processor to execute instructions to at least in response to determining an aircraft is in a flight plan flare regime, determine an estimate state of an aircraft parameter based on an execution of a transfer function of an observer model, the execution of the transfer function based on an altitude command corresponding to the flare regime, determine a gain value based on the aircraft parameter, determine an altitude control input based on the estimate state and the gain value, determine an altitude command output based on the altitude control input and longitudinal dynamics of the aircraft, the longitudinal dynamics generated in response to the aircraft executing the altitude command output, and control an elevator of the aircraft based on the altitude command output.

Methods and apparatus for observer-based landing control of a vehicle

Methods, systems, and computer-readable media are described herein for providing flight director guidance throughout a flare maneuver during landing operations. A pre-flare flight path to a runway may be received, and a flare engage altitude calculated. A flare command path may be calculated having a slope associated with a desired descent rate at a desired touchdown location on a runway. An aircraft flare trajectory may be calculated that transitions the aircraft from the flare engage altitude on the pre-flare flight path to the flare command path at the desired touchdown location. A flight director command may be provided during the flare maneuver that aligns a current flight path with the aircraft flare trajectory.

Flight director flare guidance

A method and apparatus for a monitoring module. The monitoring module is configured to identify a difference between measured position information for a controller and expected position information for the controller. The monitoring module is configured to compare the difference with thresholds for managing an autopilot in a control system of a vehicle to form a comparison. The monitoring module is configured to manage an operation of the autopilot based on the comparison such that the autopilot remains operating when a backdrive system is inoperative and an intentional override of the autopilot is absent.

Flight controller management system with a backdrive monitor

A fishing rod extender adjustably holds a fishing rod on the side of a fishing boat. The fishing rod is retained in either an extended position during fishing or withdrawn in a retracted position closer to the boat when adjusting the reel, etc. The extending and retracting motion is undertaken by using a parallelogram frame or linkage pivotally attached at each of its four corners, having a base frame member or link rigidly mounted at an angle to the deck of a boat, and having the top frame or link member, parallel to the base, to move transversely in and out as the two interconnecting parallel frames or links rotate. A cylindrical collar attached to the top link near its outboard end receives the handle of the fishing rod.

Fishing rod extender

Growing community of inventors

Seattle, WA, United States of America

Benjamin David Levine