Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Gathering user feedback in web applications
Using network labels without standard-defined syntax and semantics
Combined high and low frequency stimulation therapy
Mass spectrometry method
Ni-, Co-, and Mn- multi-element doped positive electrode material for lithium battery and its preparation method
Methods and devices for detecting and measuring environmental conditions in high performance device packages
Non-transitory computer readable recording medium storing print management program, print management device, print management method, and print system
  Randomly Featured Patents
CU second electrode process with in situ ashing and oxidation process
Voltage comparator and A/D converter
Secondary battery
Hot milk dispenser
Analog digital converter, A/D conversion stage, method for generating digital signal corresponding to analog signal, and method for generating signal indicating conversion error in the A/D con
Sealing system for fuel cells
Resharpenable recutter screen for forage harvester
Semiconductor memory
Generating optimized motion transitions for computer animated objects
Shallow bottom trash container