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
Plants and seeds of corn variety CV294874
Systems and methods for computer-aided fold detection
Luggage wheel housing with wheel
Device for maneuvering a vehicle using maneuvering moves using at least one trajectory
Method and apparatus for power management control of an embedded memory having sleep and shutdown features
Mode detection for DVB receiver
Anti-proliferative and anti-inflammatory agent combination for treatment of vascular disorders with an implantable medical device
  Randomly Featured Patents
Pre-mixes intended to be added to detergent powders by post-addition
Method of limiting the noise bandwidth of a bandgap voltage generator and relative bandgap voltage generator
Color video processing circuitry
Furnace
Three-dimensional shape measuring system, and three-dimensional shape measuring method
Mixing tube for drying building materials
Facsimile receiving apparatus
Methods of fabricating color shifting thin film pigments
System and method for training and monitoring data reader operators
Storage building door