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
Floribunda rose plant named `KORamflusa`
Masking method and apparatus
Wireless device and communication control method
System and method of verification of analog circuits
Television receiver
Playlist search device, playlist search method and program
High-frequency-link power-conversion system having direct double-frequency ripple current control and method of use
  Randomly Featured Patents
Implosion connector and method for use with transmission line conductors comprising composite cores
Binder with reclosable outer transparent window
Method and apparatus for sealing capsules
Proportional pressure control valve
Linear movement ball guideway
Pump
Eddy current flaw detector having rotatable field defining sleeve for selectively enhancing induced eddy currents in a workpiece
Semiconductor memory device that uses a negative differential resistance
Single fault tolerant CCIS data link arrangement
Component of an electronic device