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
Processing data using information embedded in a data request
Produce container and lid assembly
Wafer level packaging
Milk frother
High density vertical structure nitride flash memory
Content display system
Voltage regulator structure that is operationally stable for both low and high capacitive loads
  Randomly Featured Patents
Metal nitrides as performance modifiers for glass compositions
Wheelchair
Christmas light bulb viability checker
Phase-separating block or graft copolymers comprising incompatible hard blocks and moulding compositions having a high stiffness
Permanet magnet easy-axis biased magnetoresistive head
Method of making steel strapping and strip and strapping and strip
Semiconductor device with test pads and pad connection unit
Continuous motion packaging system
Collapsible receptacle type stand for use in transporting loaded grocery bags
Process for the preparation of phosphoric diesters