Resources Contact Us Home
Aircraft high altitude vertical flight path and speed control system

Image Number 4 for United States Patent #5079711.

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 loop and an energy distribution control loop. In the former, a net thrust command signal T.sub.c is generated to reduce the total energy error to zero. In the latter, an elevator position command signal .delta.e.sub.c is generated to reduce the energy rate distribution error, i.e. correct the distribution of energy between kinetic energy (speed) and potential energy (altitude). The error signal input into each loop has a flight path component and a speed component. The factor KALT is applied to both components of the total energy error to reduce the bandwidth of the total energy control loop with increasing altitude and thereby reduce throttle activity. The factor KALT is also applied to one of the components of the energy distribution error to prioritize reduction of that component to zero by control of elevator position. Preferably, speed control is prioritized, and energy errors are channeled into short term deviations in altitude.

  Recently Added Patents
Method and apparatus for managing network traffic
Wireless communication apparatus, a method of wireless communication, and a program for wireless communication
System and method for transferring data in storage controllers
Communication system and data transmission method thereof
Process for producing polyphenylene ether composition
Laser protection polymeric materials
Delivery of captions, content advisory and other data through digital interface
  Randomly Featured Patents
Semiconductor structure having a doped conductive layer
Dental floss container
Insertion and ejection apparatus for environmental test chambers
System for measuring the arc voltage in an electric furnace
Antimicrobial filtration
Method for automatically identifying scan area
Image display apparatus that allows viewing of three-dimensional image from directions
Front face of a vehicle wheel
Self-cooling, non-loading abrading tool
Apparatus for inserting a film-wrapped package into a carton