Resources Contact Us Home
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
Management of computer-file sharing between at least two devices
Method and device for peer arrangement in single substream upload P2P overlay networks
Multi-dimensional tuple support in rule engines
Compositions and methods for activating innate and allergic immunity
Methods and systems for delivering customized advertisements
Liposomal nanoparticles and other formulations of fenretinide for use in therapy and drug delivery
Receiving security risk feedback from linked contacts due to a user's system actions and behaviors
  Randomly Featured Patents
Apparatus and method for setting a default gateway address in a mobile communication system
Line guide and gripping means for staplers
Electrical connection system between an electrochemical cell and a printed circuit
Abrasive blast media containing corrosion inhibitor
Security system for motor vehicles
Pipe conduit vehicle
En-mass conveyor for verticle or steep delivery of bulk material
System and method for preventing network misuse
Methods and systems for detecting a capacitance using sigma-delta measurement techniques
Wall furnace with side vented draft hood