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 connecting to external device
Tint block image generation program and tint block image generation device
Mobile terminal and method for displaying information
Dynamic data filtering system and method
Recovery of a hot-pluggable serial communication link
Context data in UPNP service information
  Randomly Featured Patents
Service segregation according to subscriber service association
Mixtures of carboxylic acids, their derivatives and hydroxyl-containing polymers and their use for improving the lubricating effect of oils
Multi-point sash lock system for casement window
Apparatus for automatically supplying electrical components
Cationic polymer flocculant prepared by reacting epichlorohydrin and a Mannich reaction product
Umpire chest protector
Rotating jewelry clamp
Optical fiber coil unit for a fiber optic gyro
Access limiting bird feeder