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

Image Number 10 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
Audio conversation apparatus
Antenna arrangement and antenna housing
Optical channel transport unit frames transmission having interleaved parity
Method and apparatus for using virtual machine technology for managing parallel communicating applications
Defected ground plane inductor
Recording medium, playback device, integrated circuit
Point-in-time copies in a cascade using maps and fdisks
  Randomly Featured Patents
Cross-tearable decorative sheet material
Process for the preparation of pharmaceutical compositions possessing neurogenic or non-neurogenic anti-inflammatory as well as analgetic effects
Method for encoding frame data
Portable oxygen concentrator
Procedure for regulating a combustion process
Azo dyes and a method of making a hydrocarbon using an azo dye
Method of operating large turbo compressors
Agent method and computer system
Fly swatter
Method and apparatus to improve well water quality