Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method and apparatus for controlled reoxygenation
Image display device and capsule endoscope system
Microfluidic system incorporating a metal impregnated nanoporous material in a microfluidic pathway thereof
Clock phase recovery apparatus
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system
Analog-to-digital converter control using signal objects
  Randomly Featured Patents
Eating utensil
Low strain variable frequency amplifier
Reduced pin count test method and apparatus
Pre-assembled two-stage reaction device for vacuum brake boosters
Helmet liner
Patterned medium with magnetic pattern depth relationship
Dual window fan
Image processing method and image processing apparatus
Streptomyces proteases and improved streptomyces strains for expression of peptides and polypeptides
Method for manufacturing molten metal containing Ni and Cr